Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
The MH32S64APFB is 33554432 - word by 64-bit
Synchronous DRAM module. This consists of
sixteen industry standard 16Mx8 Synchronous
DRAMs in Small TSOP and one industory
standard EEPROM in TSSOP.
The mounting of Small TSOP on a card edge
Dual Inline package provides any application
where high densities and large quantities of
memory are required.
This is a socket type - memory modules, suitable
for easy interchange or addition of modules.
MITSUBISHI LSIs
MH32S64APFB -7,-8
Utilizes industry standard 16M x 8 Synchronous DRAMs
Small TSOP and industry standard EEPROM in TSSOP
144-pin (72-pin dual in-line package)
single 3.3V±0.3V power supply
Clock frequency 100MHz(max.)
Fully synchronous operation referenced to clock rising
edge
4 bank operation controlled by BA0,1(Bank Address)
/CAS latency- 2/3(programmable)
Burst length- 1/2/4/8/Full Page(programmable)
Frequency
-7,-7L
-8,-8L
100MHz
100MHz
PC100 Compliant
PCB Outline
CLK Access Time
6.0ns(CL=3)
6.0ns(CL=3)
Column access - random
Auto precharge / All bank precharge controlled by A10
Auto refresh and Self refresh
LVTTL Interface
main memory or graphic memory in computer systems
(Front)
(Back)
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Page 2
Preliminary Spec.
PIN CONFIGURATION
Number
Pin Name
Pin Name
Number
13579111315171924681012141618
20
Number
Pin Name
Pin Name
Number
737475767778798081
82
899091922122939423249596252697
98
2930101
3132103
1043334
105
1063536
107
1083738
109
1103940
111
112
4344115
4546117
4748119
1204950
121
1225152
123
1245354
125
126
5758129
5960131
6162133
1346364
135
1366566
137
1386768
139
140
7172143
Vss
DQ0
DQ1
DQ2
DQ3
DQ4
DQ6
DQ7
Vss
DQ32
DQ33
DQ34
DQ35
DQ36
DQ38
DQ39
NC
CLK1
Vss
VssNCNCNCNC
Vcc
Vcc
DQ17
DQ18
DQ19
DQ51
Vss
Vss
Vss
Vss
DQ20
DQ52
DQMB0
DQ21
DQMB1
DQ22
A0A3Vcc
A1A4A6A7A2A5A8
BA0
Vss
Vss
Vss
Vss
DQ8
DQ40
A9
BA1
DQ9
DQ41
A10
A11
DQ11
DQMB2
Vcc
Vcc
DQMB3
DQMB7
DQ12
DQ44
Vss
Vss
DQ13
DQ45
DQ24
DQ56
DQ14
DQ46
DQ25
DQ57
DQ15
DQ47
DQ26
DQ58
NCNCVcc
NCNCDQ28
CLK0
CKE0
DQ29
DQ61
Vcc
Vcc
DQ30
DQ62
/RAS
/CAS
DQ31
DQ63
/WE
CKE1
Vss
Vss
SDA
/S1NCVcc
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
MITSUBISHI LSIs
MH32S64APFB -7,-8
PIN
272899
Front side
Vcc
DQ5
Vcc
PIN
Back side
Vcc
DQ37
DQMB4
DQMB5
Vcc
PIN
83
8586
8788
Front side
DQ16
DQ23DQ55
PIN
84
100
102
Back side
DQ48
DQ49
DQ50
DQ53
DQ54
Vcc
41
55
69
NC = No Connection
DQ10
Vss
/S0
42
56
70
DQ42
DQ43
Vss
NC
113
127
141
Vcc
DQ27
114
116
118
128
130
132
142
144
Vcc
DQMB6
DQ59
Vcc
DQ60
SCL
Vcc
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Preliminary Spec.
Block Diagram
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
/S0
/S1
DQMB0
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQMB1
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D0
D1
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D8
D9
MITSUBISHI LSIs
MH32S64APFB -7,-8
DQMB4
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
DQMB5
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D4
D5
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
D12
D13
DQMB2DQMB6
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQMB3
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
/RAS
/CAS
/WE
BA0,BA1,A<11:0>
CK,DQ=10Ω
Vcc
Vss
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7I/O 7
D2
D3
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
D0 - D15
D0 - D15
D0 - D15
D0 - D15
D0 - D15
D0 - D15
D10
D11
CKE0
CKE1
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
DQMB7
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
D0 - D7
D8 - D15
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
CK0
CK1
SCL
D6
D7
SERIAL PD
A0
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
DQM /CS
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
8SDRAMs
8SDRAMs
A2
A1
D14
D15
SDA
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Preliminary Spec.
Serial Presence Detect Table I
SDRAM Cycletime at Max. Supported CAS Latency (CL).
Non-PARITY
Minimum Clock Delay,Back to Back Random Column Addresses
1/2/4/8/Full page
non-buffered,non-registered
Precharge All,Auto precharge
SDRAM Access form Clock(2nd highest CAS latency)
SDRAM Access form Clock(3rd highest CAS latency)
-8,8L
-8,8L
-7,7L
-7,7L
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
MITSUBISHI LSIs
MH32S64APFB -7,-8
Byte
0
Defines # bytes written into serial memory at module mfgr
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Total # bytes of SPD memory device
# Column Addresses on this assembly
Voltage interface standard of this assemblyLVTTL01
DIMM Configuration type (Non-parity,Parity,ECC)
Function described
Fundamental memory type
# Row Addresses on this assembly
# Module Banks on this assembly
Data Width of this assembly...
... Data Width continuation
Cycle time for CL=3
SDRAM Access from Clock
tAC for CL=3
Refresh Rate/Type
SDRAM width,Primary DRAM
Error Checking SDRAM data width
Burst Lengths Supported
# Banks on Each SDRAM device
CAS# Latency
SPD enrty dataSPD DATA(hex)
128
256 Bytes
SDRAM
A0-A110C
A0-A90A
2BANK02
x6440
000
10ns
6ns
self refresh(15.625uS)
x8
N/A
101
4bank
2/3
80
08
04
A0
60
00
80
08
00
8F
04
06
19
20
21
22
23
24
25SDRAM Cycle time(3rd highest CAS latency)N/A00
26
27Precharge to Active Minimum20ns14
28Row Active to Row Active Min.
29RAS to CAS Delay Min
30Active to Precharge Min50ns32
SDRAM Device Attributes:General
SDRAM Cycle time(2nd highest CAS latency)
CS# Latency
Write Latency
SDRAM Module Attributes
Cycle time for CL=2
tAC for CL=2
001
0
10ns
13ns
6ns60
7ns7 0
N/A00
20ns14
20ns14
A0
D0
01
00
0E
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Preliminary Spec.
Serial Presence Detect Table II
Manufacturing date
4D483136533634415046422D372020202020
-7,7L
--8,8L
4D483136533634415046422D374C20202020
4D483136533634415046422D382020202020
4D483136533634415046422D384C20202020
MITSUBISHI LSIs
Some contents are subject to change without notice.
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
31Density of each bank on module128MByte20
32Command and Address signal input setup time2ns20
33Command and Address signal input hold time1ns10
34Data signal input setup time2ns
35Data signal input hold time1ns10
36-61
62SPD Revision
63Checksum for bytes 0-62
64-71
72Manufacturing location
73-90Manufactures Part Number
91-92Revision CodePCB revisionrrrr
93-94
95-98Assembly Serial Numberserial numberssssssss
99-125
126Intetl specification frequency100MHz64
Superset Information (may be used in future)
Manufactures Jedec ID code per JEP-108E
Manufacture Specific Data
option00
rev 1.2A12
Check sum for -7,7L17
Check sum for -8,8L57
MITSUBISHI1CFFFFFFFFFFFFFF
Miyoshi,Japan01
Tajima,Japan02
NC,USA03
Germany04
MH32S64APFB-7
MH32S64APFB-7L
MH32S64APFB-8
MH32S64APFB-8L
year/week codeyyww
option
20
00
127Intel specification CAS# Latency support
128+Unused storage locationsopen00
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CDCL=3,AP,CK0,1
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Preliminary Spec.
Combination of /RAS,/CAS,/WE defines basic commands.
Power Supply
SDA
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
PIN FUNCTION
MITSUBISHI LSIs
MH32S64APFB -7,-8
CK
(CK0 ,1)
CKE0,1Input
/S
(/S0,1)
/RAS,/CAS,/WEInput
A0-11Input
Input
Input
Master Clock:All other inputs are referenced to the rising
edge of CK
Clock Enable:CKE controls internal clock.When CKE is
low,internal clock for the following cycle is ceased. CKE is
also used to select auto / self refresh. After self refresh
mode is started, CKE becomes asynchronous input.Self
refresh is maintained as long as CKE is low.
Chip Select: When /S is high,any command means
No Operation.
A0-11 specify the Row/Column Address in conjunction with
BA.The Row Address is specified by A0-11.The Column
Address is specified by A0-9.A10 is also used to indicate
precharge option.When A10 is high at a read / write
command, an auto precharge is performed. When A10 is
high at a precharge command, all banks are precharged.
BA0,1Input
DQ0-63
DQMB0-7Input
Vdd,Vss
SCL
Input/Output
Input
Output
Bank Address:BA0,1 is not simply BA.BA specifies the
bank to which a command is applied.BA0,1 must be set
with ACT,PRE,READ,WRITE commands
Data In and Data out are referenced to the rising edge of
CK
Din Mask/Output Disable:When DQMB is high in burst
write.Din for the current cycle is masked.When DQMB is
high in burst read,Dout is disabled at the next but one cycle.
Power Supply for the memory mounted module.
Serial clock for serial PD
Serial data for serial PD
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Preliminary Spec.
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
BASIC FUNCTIONS
The MH32S64APFB provides basic functions,bank(row)activate,burst read / write,
bank(row)precharge,and auto / self refresh.
Each command is defined by control signals of /RAS,/CAS and /WE at CK rising edge.
In addition to 3 signals,/S,CKE and A10 are used as chip select,refresh option,and
precharge option,respectively.
To know the detailed definition of commands please see the command truth table.
CK
/S
Chip Select : L=select, H=deselect
/RAS
/CAS
/WE
CKE
A10
Command
Command
Command
Refresh Option @refresh command
Precharge Option @precharge or read/write command
define basic commands
Activate(ACT) [/RAS =L, /CAS = /WE =H]
ACT command activates a row in an idle bank indicated by BA.
Read(READ) [/RAS =H,/CAS =L, /WE =H]
READ command starts burst read from the active bank indicated by BA.First output
data appears after /CAS latency. When A10 =H at this command,the bank is
deactivated after the burst read(auto-precharge,READA).
Write(WRITE) [/RAS =H, /CAS = /WE =L]
WRITE command starts burst write to the active bank indicated by BA. Total data
length to be written is set by burst length. When A10 =H at this command, the bank is
deactivated after the burst write(auto-precharge,WRITEA).
Precharge(PRE) [/RAS =L, /CAS =H,/WE =L]
PRE command deactivates the active bank indicated by BA. This command also
terminates burst read / write operation. When A10 =H at this command, both banks
are deactivated(precharge all, PREA).
Auto-Refresh(REFA) [/RAS =/CAS =L, /WE =CKE =H]
REFA command starts auto-refresh cycle. Refresh address including bank address
are generated internally. After this command, the banks are precharged automatically.
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Preliminary Spec.
Precharge All Bank
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
COMMAND TRUTH TABLE
MITSUBISHI LSIs
MH32S64APFB -7,-8
COMMAND
DeselectDESELHXHXXXXXX
No OperationNOPHXLHHHXXX
Row Adress Entry &
Bank Activate
Single Bank PrechargePREHXLLHLVLX
Column Address Entry
& Write
Column Address Entry
& Write with Auto-
Precharge
Column Address Entry
& Read
Column Address Entry
& Read with Auto
Precharge
MNEMONIC
ACTHXLLHHVVV
PREA
WRITE
WRITEAHXLHLLVHV
READHXLHLHVLV
READAHXLHLHVHV
CKE
CKE
n-1
n
HXLLHLXHX
HXLHLLVLV
/S
/RAS
/CAS
/WE BA0,1A10
A11
X
X
V
X
X
V
V
V
V
A0-9
Auto-RefreshREFAHHLLLHXXX
Self-Refresh EntryREFSHLLLLHXXX
Self-Refresh ExitREFSXLHHXXXXXX
LHLHHHXXX
Burst TerminateTERM
Mode Register Set
MRS
HXLHHLXXX
HXLLLLLL
X
X
X
X
X
L
H =High Level, L = Low Level, V = Valid, X = Don't Care, n = CK cycle number
NOTE:
1.A7-9 = 0, A0-6 = Mode Address
V*1
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Preliminary Spec.
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
FUNCTION TRUTH TABLE
MITSUBISHI LSIs
MH32S64APFB -7,-8
Current State/S/RAS /CAS/WEAddress
IDLEHXXXXDESELNOP
LHHHXNOPNOP
LHHL
LHLX
LLHH
LLHL
LLLHXREFA
LLLL
ROW ACTIVEHXXXXDESELNOP
LHHHXNOPNOP
LHHLBA
LHLHBA,CA,A10READ/READA
LHLLBA,CA,A10
LLHHBA,RAACTBank Active/ILLEGAL*2
LLHLBA,A10PRE/PREAPrecharge/Precharge All
LLLHXREFAILLEGAL
INVALID
Exit Power Down to Idle
NOP(Maintain Self-Refresh)
Refer to Function Truth Table
Enter Self-Refresh
Enter Power Down
Enter Power Down
ILLEGAL
ILLEGAL
ILLEGAL
LXXXXXX
ANY STATEHHXXXXX
other thanHLXXXXX
listed aboveLHXXXXX
LLXXXXX
Refer to Current State = Power Down
Refer to Function Truth Table
Begin CK0 Suspend at Next Cycle*3
Exit CK0 Suspend at Next Cycle*3
Maintain CK0 Suspend
ABBREVIATIONS:
H = High Level, L = Low Level, X = Don't Care
NOTES:
1. CKE Low to High transition will re-enable CK and other inputs asynchronously.
A minimum setup time must be satisfied before any command other than EXIT.
2. Power-Down and Self-Refresh can be entered only from the All banks idle State.
3. Must be legal command.
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Preliminary Spec.
READA
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
SIMPLIFIED STATE DIAGRAM
MITSUBISHI LSIs
MH32S64APFB -7,-8
SELF
REFRESH
REFS
REFSX
WRITE
SUSPEND
MODE
REGISTER
SET
CLK
SUSPEND
TBST(for Full Page)TBST(for Full Page)
CKEL
WRITE
CKEH
WRITEAREADA
MRS
CKEH
WRITE
CKEL
WRITEA
WRITE
WRITEA
IDLE
ACT
ROW
ACTIVE
READ
REFA
CKEL
CKEH
READ
READA
READ
READA
AUTO
REFRESH
POWER
DOWN
CKEL
CKEH
READ
SUSPEND
SUSPEND
POWER
APPLIED
MIT-DS-0358-0.2
WRITEA
CKEL
CKEH
POWER
ON
WRITEA
PRE
PRE
PREPRE
PRE
CHARGE
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CKEL
CKEH
READA
SUSPEND
Automatic Sequence
Command Sequence
16.Mar.2000
Page 15
Preliminary Spec.
POWER ON SEQUENCE
After these sequence, the SDRAM is idle state and ready for normal operation.
MODE REGISTER
LENGTH
BURST
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
Before starting normal operation, the following power on sequence is necessary to prevent
a SDRAM from damaged or malfunctioning.
1. Apply power and start clock. Attempt to maintain CKE high, DQMB0-7 high and NOP
condition at the inputs.
2. Maintain stable power, stable clock, and NOP input conditions for a minimum of 200us.
3. Issue precharge commands for all banks. (PRE or PREA)
4. After all banks become idle state (after tRP), issue 8 or more auto-refresh commands.
5. Issue a mode register set command to initialize the mode register.
Burst Length, Burst Type and /CAS Latency can be programmed by setting the mode
register(MRS). The mode register stores these date until the next MRS command, which
may be issue when both banks are in idle state. After tRSC from a MRS command, the
SDRAM is ready for new command.
LATENCY
MODE
00
CL
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
A11 A10 A9 A8A7 A6A5 A4 A3A2 A1 A0BA1BA0
00
/CAS LATENCY
WM
R
R
2
3
R
R
R
R
00
LTMODEBTBL
BURST
TYPE
BA0,1 A11-0
BL
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0
1
CK
/S
/RAS
/CAS
/WE
BT= 0BT= 1
1
2
4
8
R
R
R
FP
SEQUENTIAL
INTERLEAVED
V
1
2
4
8
R
R
R
R
WRITE
MODE
MIT-DS-0358-0.2
BURST
0
1
SINGLE BIT
MITSUBISHI
R:Reserved for Future Use
FP: Full Page
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Preliminary Spec.
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
(x8) . 1st output data is available after the /CAS Latency from the READ. The consecutive data
command can be issued after (BL + tRP) from the previous READA. In any case, tRCD+BL >
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
BANK ACTIVATE
One of four banks is activated by an ACT command.
An bank is selected by BA0-1. A row is selected by A0-11.
Multiple banks can be active state concurrently by issuing multiple ACT commands.
Minimum activation interval between one bank and another bank is tRRD.
PRECHARGE
An open bank is deactivated by a PRE command.
A bank to be deactivated is designated by BA0-1.
When multiple banks are active, a precharge all command (PREA, PRE + A10=H)
deactivates all of open banks at the same time. BA0-1 are "Don't Care" in this case.
Minimum delay time of an ACT command after a PRE command to the same bank is tRP.
Bank Activation and Precharge All (BL=4, CL=2)
CK
Command
A0-9,11
A10
BA0,1
DQ
ACT
Xa
Xa
00
tRRD
ACT
Xb
Xb
01
tRCD
READ
Yb
0
01
PRE
tRP
1
Qa0Qa1Qa2Qa3
Precharge all
ACT
Xa
Xa
00
READ
A READ command can be issued to any active bank. The start address is specified by A0-9
length is defined by the Burst Length. The address sequence of the burst data is defined by
the Burst Type. Minimum delay time of a READ command after an ACT command to the
same bank is tRCD.
When A10 is high at a READ command, auto-precharge (READA) is performed. Any
command (READ, WRITE, PRE, ACT, TBST) to the same bank is inhibited till the internal
precharge is complete. The internal precharge starts at the BL after READA. The next ACT
tRASmin must be met.
MIT-DS-0358-0.2
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Preliminary Spec.
BL
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
Multi Bank Interleaving READ (BL=4, CL=2)
CK
Command
A0-9, 11
ACT
Xa
tRCD
READ
Ya
ACT
tRCD
Xb
READ
Yb
MITSUBISHI LSIs
MH32S64APFB -7,-8
PRE
tRP
ACT
Xa
A10
BA0,1
DQ
CK
Command
A0-9, 11
A10
BA0,1
DQ
00
0
Xb
01
Qa0Qa1Qa2Qa3Qb0Qb1Qb2
Xa
00
READ with Auto-Precharge (BL=4, CL=2)
ACT
Xa
Xa
00
READ
tRCDtRP
Ya
1
00
BL
Qa0Qa1Qa2Qa3
0
01
00
0
ACT
Xa
00
Qb3
Xa
Xa
00
CK
Command
CL=3
CL=2
ACTREAD
DQQa0Qa1Qa2Qa3
DQQa0Qa1Qa2Qa3
MIT-DS-0358-0.2
Internal precharge starts
Auto-Precharge Timing (READ BL=4)
tRCD
Internal precharge starts
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ACT
16.Mar.2000
Page 19
Preliminary Spec.
WRITE command can be issued to any active bank. The start address is specified by A0-9
bank is tRCD. From the last input data to the PRE command, the write recovery time (tWR) is
Any command (READ, WRITE, PRE, ACT, TBST) to the same bank is inhibited till the internal
In any case, tRCD + BL + tWR -1 > tRASmin must be met.
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
WRITE
A
(x8). 1st input data is set at the same cycle as the WRITE. The consecutive data length to be
written is defined by the Burst Length. The address sequence of burst data is defined by the
Burst Type. Minimum delay time of a WRITE command after an ACT command to the same
required. When A10 is high at a WRITE command, auto-precharge (WRITEA) is performed.
precharge is complete. The internal precharge starts at tWR after the last input data cycle.
The next ACT command can be issued after (BL + tWR -1 + tRP) from the previous WRITEA.
WRITE (BL=4)
CK
Command
A0-9, 11
A10
BA0,1
DQ
CK
Command
A0-9, 11
ACT
tRCDBL
Xa
Xa
00
Write
Ya
0
00
Da0Da1Da2Da3
WRITE with Auto-Precharge (BL=4)
ACT
tRCD
Xa
Write
Ya
BL
tWR
PRE
0
ACT
tRP
Xa
Xa
00
ACT
tRP
Xa
A10
BA0,1
DQ
MIT-DS-0358-0.2
Xa
00
1
00
Da0Da1Da2Da3
tWR
Internal precharge begins
MITSUBISHI
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00
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Page 20
Preliminary Spec.
Burst read oparation can be interrupted by new read of the same or the other bank. Random
Some contents are subject to change without notice.
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
BURST INTERRUPTION
[ Read Interrupted by Read ]
column access is allowed READ to READ interval is minimum 1 CK
Read Interrupted by Read (BL=4, CL=2)
CK
MITSUBISHI LSIs
Command
A0-9,11
A10
BA0,1
DQ
READ
Ya
0
00
READ
READ
Yb
Yc
0
0
00
10
Qa0Qa2 Qb0Qc0Qa1Qc1Qc2
Qc3
[ Read Interrupted by Write ]
Burst read operation can be interrupted by write of any active bank. Random column access
is allowed. In this case, the DQ should be controlled adequately by using the DQMB0-7 to
prevent the bus contention. The output is disabled automatically 1 cycle after WRITE
assertion.
Read Interrupted by Write (BL=4, CL=2)
CK
Command
A0-9,11
A10
BA0,1
DQMB0-7
DQ
MIT-DS-0358-0.2
ACT
Xa
Xa
00
READ
Ya
0
00
Write
Ya
0
00
Qa0
Output disable by DQM by WRITE
Da0Da1Da2Da3
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Preliminary Spec.
/CAS Latency.
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
[ Read Interrupted by Precharge ]
A burst read operation can be interrupted by precharge of the same bank . Read to PRE
interval is minimum 1 CK. A PRE command output disable latency is equivalent to the
Read Interrupted by Precharge (BL=4)
CK
CL=3
CL=2
Command
DQ
Command
DQ
Command
DQ
Command
DQ
Command
READPRE
Q0Q1
READPRE
Q0Q1
READ PRE
Q0
READ
READPRE
PRE
Q0Q2Q1
Q2
MIT-DS-0358-0.2
DQ
Command
DQ
READ PRE
Q0
Q1
Q0
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Preliminary Spec.
and disable the data output. The terminated bank remains active,READ to TBST interval is
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
[ Read Interrupted by Burst Terminate ]
Similarly to the precharge, burst terminate command can interrupt burst read operation
minimum of 1 CK. A TBSTcommand to output disable latency is equivalent to the /CAS
Latency.
Read Interrupted by Terminate (BL=4)
CK
CL=3
CL=2
Command
DQ
Command
DQ
Command
DQ
Command
DQ
Command
DQ
READTBST
Q0Q1
READ
READ TBST
READ
READ
TBST
Q0Q1
Q0
TBST
Q0Q1Q2
TBST
Q0Q1
Q2
Command
DQ
MIT-DS-0358-0.2
READ
TBST
Q0
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Page 23
Preliminary Spec.
Burst write operation can be interrupted by read of any active bank. Random column
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
[ Write Interrupted by Write ]
Burst write operation can be interrupted by new write of any active bank. Random
column access is allowed. WRITE to WRITE interval is minimum 1 CK.
Write Interrupted by Write (BL=4)
CK
Command
A0-9, 11
A10
BA0,1
DQ
Write
Ya
0
00
Da0Da1Da2Db0Dc0Dc1
Write
Yb
0
00
Write
Yc
0
10
Dc2Dc3
[ Write Interrupted by Read ]
access is allowed. WRITE to READ interval is minimum 1 CK. The input data on DQ
at the interrupting READ cycle is "don't care".
Write Interrupted by Read (BL=4, CL=2)
CK
Command
A0-9,11
A10
BA0,1
DQ
MIT-DS-0358-0.2
ACT
Xa
Xa
00
Write
Ya
0
00
READ
Da1
don't care
Yb
0
00
Qb0
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Qb1Da0
Qb2Qb3
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Preliminary Spec.
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
[ Write Interrupted by Precharge ]
Burst write operation can be interrupted by precharge of the same bank. Write
recovery time(tWR) is required from the last data to PRE command. During write
recovery, data inputs must be masked by DQM.
Write Interrupted by Precharge (BL=4)
CK
Command
A0-9,11
A10
BA0,1
DQMB0-7
DQ
ACT
Xa
0
00
Write
Ya
0
00
Da0Da1
tWR
PRE
0
00
ACT
tRP
Xa
0
00
[ Write Interrupted by Burst Terminate ]
Burst terminate command can terminate burst write operation. In this case, the
write recovery time is not required and the bank remains active.The WRITE to TBST
minimum interval is 1CK.
CK
Command
A0-9,11
A10
BA0,1
DQ
MIT-DS-0358-0.2
Write Interrupted by Burst Terminate (BL=4)
ACT
Xa
0
00
Write
Ya
0
00
Da0Da1
TBST
Write
Yb
0
00
Db0Db1Db2Db3
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Preliminary Spec.
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
[ Write with Auto-Precharge interrupted by Write or Read to anotehr Bank ]
Burst write with auto-precharge can be interrupted by write or read toanother bank.
Next ACT command can be issued after (BL+tWR-1+tRP) from the WRITEA. AutoÂprecharge interrrupted by a command to the same bank is inhibited.
WRITEA Interrupted by WRITE to another bank (BL=4)
CK
Command
A0-9,11
A10
BA0,1
DQ
CK
Command
A0-9,11
A10
Write
Ya
1
00
Da0Da1
auto-precharge
WRITEA interrupted by READ to another bank (CL=2,BL=4)
Write
Ya
1
Write
BL
Ya
tWR
0
10
Db0Db1Db2Db3
interrupted
Read
BL
Yb
tWR
0
ACT
tRP
Xa
Xa
00
activate
ACT
tRP
Xa
Xa
BA0,1
DQ
MIT-DS-0358-0.2
00
Da0Da1
10
auto-precharge interrupted
00
Db0Db1Db2Db3
activate
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Preliminary Spec.
Full page burst length is available for only the sequential burst type. Full page burst
issued. In case of the full page burst , a read or write with auto-precharge command
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
[ Read with Auto-Precharge interrupted by Read to anotehr Bank ]
Burst read with auto-precharge can be interrupted by read toanother bank. Next
ACT command can be issued after (BL+tRP) from the READA. Auto-precharge
interrrupted by a command to the same bank is inhibited.
READA Interrupted by READ to another bank (CL=2,BL=4)
CK
Command
A0-9,11
A10
BA0,1
DQ
Read
Ya
1
00
auto-precharge
Read
BL
Ya
0
10
Qa0Qa1
interrupted
ACT
tRP
Xa
tWR
Xa
00
Qb0Qb1Qb2Qb3
activate
Full Page Burst
read or write is repeated untill aPrecharge or a Burst Terminate command is
is illegal.
Single Write
When single write mode is set, burst length for write is always one, independently
of Burst Length defined by (A2-0).
MIT-DS-0358-0.2
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Preliminary Spec.
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
AUTO REFRESH
Single cycle of auto-refresh is initiated with a REFA(/CS=/RAS=/CAS=L,
/WE=/CKE=H) command. The refresh address is generated internally. 4096 REFA
cycle within 64ms refresh 128Mbit memory cells. The auto-refresh is performed on
4banks concurrently. Before performing an auto-refresh, all banks must be in the
idle state. Auto-refresh to auto-refresh interval is minimum tRFC. Any command
must not be issued before tRFC from the REFA command.
Auto-Refresh
CK
/S
/RAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
NOP or DESLECT
/CAS
/WE
CKE
A0-11
BA0,1
minimum tRFC
Auto Refresh on All BanksAuto Refresh on All Banks
MIT-DS-0358-0.2
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Preliminary Spec.
new command
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S64APFB -7,-8
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
SELF REFRESH
Self-refresh mode is entered by issuing a REFS command (/CS=/RAS=/CAS=L,
/WE=H, CKE=L). Once the self-refresh is initiated, it is maintained as log as CKE is
kept low.During the self-refresh mode, CKE is asynchronous and the only enabled
input , all other inputs including CK are disabled and ignored, so that power
consumption due to synchronous inputs is saved. To exit the self-refresh, supplying
stable CK inputs, asserting DESEL or NOP command and then asserting CKE=H.
After tRFC from the 1st CK edge follwing CKE=H, all banks are in the idle state and
a new command can be issued after, but DESEL or NOP commands must be
asserted till then.
Self-Refresh
CK
Stable CK
/S
NOP
/RAS
/CAS
/WE
CKE
A0-11
BA0,1
Self Refresh Entry
Self Refresh Exit
X
00
minimum tRFC
for recovery
MIT-DS-0358-0.2
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Preliminary Spec.
(ext.CLK)
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
CLK SUSPEND and POWER DOWN
CKE controls the internal CLK at the following cycle. Figure below shows how CKE
works. By negating CKE, the next internal CLK is suspended. The purpose of CLK
suspend is power down, output suspend or input suspend. CKE is a synchronous
input except during the self-refresh mode. CLK suspend can be performed either
when the banks are active or idle. A command at the suspended cycle is ignored.
CK
tIHtIStIHtIS
CKE
int.CLK
MITSUBISHI LSIs
MH32S64APFB -7,-8
CK
CKE
Command
CKE
Command
CK
CKE
PRE
ACT
NOP
NOP
Power Down by CKE
Standby Power Down
NOP NOP
Active Power Down
NOP NOP
DQ Suspend by CKE
Command
MIT-DS-0358-0.2
DQ
Write
D0D1D2D3
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READ
MITSUBISHI
ELECTRIC
Q0Q1Q2Q3
16.Mar.2000
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Preliminary Spec.
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
DQM CONTROL
DQMB0-7 is a dual function signal defined as the data mask for writes and the
output disable for reads. During writes, DQMB0-7 masks input data word by word.
DQMB0-7 to Data In latency is 0.
During reads, DQMB0-7 forces output to Hi-Z word by word. DQMB0-7 to output Hi-Z
latency is 2.
CK
MITSUBISHI LSIs
MH32S64APFB -7,-8
DQM Function
Command
DQMB0-7
DQ
Write
D0D2D3
masked by DQMB=H
READ
Q0Q1Q3
disabled by DQMB=H
MIT-DS-0358-0.2
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Preliminary Spec.
ABSOLUTE MAXIMUM RATINGS
mA
RECOMMENDED OPERATING CONDITION
CAPACITANCE
f=1MHz
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
MITSUBISHI LSIs
MH32S64APFB -7,-8
SymbolParameter
Vdd
VI
VO
IO
Pd
Topr
Tstg
Supply Voltage
Input Voltage
Output Voltage
Output Current
Power Dissipation
Operating Temperature
Storage Temperature
(Ta=0 ~ 70°C, unless otherwise noted)
Symbol
Vdd
Parameter
Supply Voltage
ConditionRatingsUnit
with respect to Vss
with respect to Vss
with respect to Vss
-0.5 ~ 4.6
-0.5 ~ Vdd+0.5
-0.5 ~ Vdd+0.5
50
Ta=25°C
16
0 ~ 70
-40 ~ 100
Limits
Min.Typ.Max.
3.0
3.3
3.6
V
V
V
W
°C
°C
Unit
V
Vss
VIH
VIL
Note)
1:VIH(max)=5.5V for pulse width less than 10ns.
Note)
1 If clock rising time is longer than 1ns,(tT/2-0.5)ns should be added to parameter.
Delay time, output low
impedance from CK
Delay time, output high
impedance from CK
Output Load Condition
50½
VTT =1.4V
VREF=1.4V
CL=2
CL=3
CL=2
CK
3
0
36
6
6
7
6
ns
ns
3ns
3ns3CL=3
0ns
3ns6
1.4V
VOUT
MIT-DS-0358-0.2
50pF
CK
DQ
tOLZ
tACtOH
tOHZ
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DQ
Output Timing
Measurement
Reference Point
1.4V
16.Mar.2000
Page 35
Preliminary Spec.
Burst Write (single bank) @BL=4
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
tRC
/CS
MITSUBISHI LSIs
MH32S64APFB -7,-8
/RAS
/CAS
CKE
DQM
A0-8
A10
tRAS
tRCD
tWR
X
X
Y
tRP
tRCD
X
X
Y
A9,11
BA0,1
DQ
MIT-DS-0358-0.2
X
0
ACT#0WRITE#0PRE#0ACT#0WRITE#0
00
D0D0D0D0
X
0
Italic parameter indicates minimum case
0
D0D0D0D0
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Preliminary Spec.
Burst Write (multi bank) @BL=4
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
tRC
MITSUBISHI LSIs
MH32S64APFB -7,-8
/CS
/RAS
/CAS
CKE
DQM
A0-8
A10
tRRD
tRAS
tRCD
tWR
X
X
Y
X
X
Y
tRP
tWR
tRRD
tRCD
X
X
Y
X
X
A9,11
BA0,1
DQ
MIT-DS-0358-0.2
X
0
ACT#0WRITE#0PRE#0ACT#0WRITE#0
X
01
1
D0D0D0D0
ACT#1WRITE#1PRE#1
0
D1D1D1D1
Italic parameter indicates minimum case
X
0
1
ACT#2
X
0
2
D0D0D0D0
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Preliminary Spec.
Burst Read (single bank) @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
tRC
/CS
tRAStRP
/RAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
/CAS
CKE
DQM
A0-8
A10
A9,11
tRCD
DQM read latency =2
X
X
X
Y
tRCD
X
X
X
Y
BA0,1
0
00
CL=3
DQ
ACT#0READ#0PRE#0ACT#0READ#0
READ to PRE ÂłBL allows full data out
MIT-DS-0358-0.2
Q0Q0Q0Q0
Italic parameter indicates minimum case
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0
0
Q0Q0
16.Mar.2000
Page 38
Preliminary Spec.
Burst Read (multiple bank) @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
MITSUBISHI LSIs
MH32S64APFB -7,-8
tRC
/CS
/RAS
/CAS
CKE
DQM
A0-8
A10
X
X
tRRD
tRCD
tRRD
tRAStRP
tRCD
DQM read latency =2
Y
X
X
Y
X
X
Y
X
X
A9,11
BA0,1
DQ
MIT-DS-0358-0.2
X
0
ACT#0READ#0PRE#0ACT#0READ#0
X
00
1
CL=3
ACT#1
1
CL=3
Q0Q0Q0Q0
READ#1PRE#1 ACT#2
Italic parameter indicates minimum case
X
0
Q1Q1Q1Q1
X
21
0
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Q0
16.Mar.2000
Page 39
Preliminary Spec.
Burst Write (multi bank) with Auto-Precharge @BL=4
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
tRC
/CS
tRRD
/RAS
tRCD
/CAS
BL-1+ tWR + tRP
MITSUBISHI LSIs
MH32S64APFB -7,-8
tRRD
tRCD
BL-1+ tWR + tRP
tRCD
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
X
X
X
0
ACT#0WRITE#0 with
ACT#1WRITE#1 with
Y
X
X
X
01
1
D0D0
AutoPrecharge
D0D0
YX
D1D1D1D1
AutoPrecharge
Y
X
X
0
ACT#0WRITE#0
0
D0D0D0D0
X
X
X
1
ACT#1WRITE#1
Y
1
D1
Italic parameter indicates minimum case
MIT-DS-0358-0.2
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Page 40
Preliminary Spec.
Burst Read (multiple bank) with Auto-Precharge @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
tRC
/CS
tRRD
/RAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
tRRD
/CAS
CKE
DQM
A0-8
A10
A9,11
tRCD
BL+tRP
DQM read latency =2
X
X
X
Y
X
X
X
Y
tRCD
BL+tRP
X
X
X
tRCD
Y
X
X
X
Y
BA0,1
DQ
MIT-DS-0358-0.2
0
ACT#0READ#0 with
ACT#1
0
1
CL=3
Auto-Precharge
1
CL=3
Q0Q0Q0Q0
READ#1 with
Auto-Precharge
Italic parameter indicates minimum case
MITSUBISHI
0
Q1Q1Q1Q1
ACT#0READ#0
ELECTRIC
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40
0
1
CL=3
ACT#1
1
Q0
Q0
16.Mar.2000
Page 41
Preliminary Spec.
Page Mode Burst Write (multi bank) @BL=4
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
/CS
tRRD
/RAS
tRCD
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
X
X
X
0
ACT#0WRITE#0WRITE#0
Y
X
X
X
00
1
D0D0D0D0
ACT#1
YY
D0D0D0D0D0D0D0
WRITE#0
Y
1
D1D1D1D1
WRITE#1
0
MIT-DS-0358-0.2
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Italic parameter indicates minimum case
16.Mar.2000
Page 42
Preliminary Spec.
Page Mode Burst Read (multi bank) @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
/CS
tRRD
/RAS
tRCD
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
DQM read latency=2
X
X
X
0
ACT#0READ#0READ#0
Y
X
X
X
00
1
CL=3CL=3CL=3
ACT#1
YY
Q0Q0Q0
Q0
READ#0
Y
1
Q0Q0Q0Q0
READ#1
0
Q1Q1Q1Q1
MIT-DS-0358-0.2
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16.Mar.2000
Page 43
Preliminary Spec.
Write Interrupted by Write / Read @BL=4
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
/CS
tRRD
/RAS
tRCD
/CAS
tCCD
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
X
X
X
0
ACT#0WRITE#0
ACT#1
Y
X
X
X
0
1
D0
D0D0
YY
000
D0
D0D0
WRITE#0READ#0
WRITE#0
Y
1
D1D1Q0Q0Q0
WRITE#1
Y
CL=3
Q0
Burst Write can be interrupted by Write or Read of any active bank.
MIT-DS-0358-0.2
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Italic parameter indicates minimum case
16.Mar.2000
Page 44
Preliminary Spec.
Read Interrupted by Read / Write @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
/CS
tRRD
/RAS
tRCD
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
DQM read latency=2
X
X
X
0
ACT#0READ#0WRITE#0
ACT#1
Y
X
X
X
00
1
YY
Y
0
Q0Q0Q0
Q0
READ#0READ#0
READ#0
Y
1
READ#1
Y
0
Q0Q0Q1Q1
blank to prevent bus contention
0
Q0D0 D0
Burst Read can be interrupted by Read or Write of any active bank.
MIT-DS-0358-0.2
MITSUBISHI
ELECTRIC
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Italic parameter indicates minimum case
16.Mar.2000
Page 45
Preliminary Spec.
Write Interrupted by Precharge @BL=4
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
/CS
tRRD
/RAS
tRCD
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
X
X
X
0
ACT#0WRITE#0
ACT#1
Y
X
X
X
0
1
D0D0D0
D0
Burst Write is not interrupted
by Precharge of the other bank.
Y
0
1
PRE#1
Burst Write is interrupted by
Precharge of the same bank.
11
D1D1D1D1D1
PRE#0
WRITE#1
X
X
X
1
ACT#1WRITE#1
Y
MIT-DS-0358-0.2
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ELECTRIC
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Italic parameter indicates minimum case
16.Mar.2000
Page 46
Preliminary Spec.
Read Interrupted by Precharge @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
/CS
MITSUBISHI LSIs
MH32S64APFB -7,-8
/RAS
/CAS
CKE
DQM
A0-8
A10
X
X
tRRD
tRCD
tRP
tRCD
DQM read latency=2
Y
X
X
Y
X
X
Y
A9,11
BA0,1
DQ
MIT-DS-0358-0.2
X
0
ACT#0READ#0
X
0
1
ACT#1
Burst Read is not interrupted
by Precharge of the other bank.
X
1
Q0Q0Q0
Q0
PRE#0
READ#1ACT#1READ#1
0
1
Q1Q1
PRE#1
Burst Read is interrupted
by Precharge of the same bank.
Italic parameter indicates minimum case
1
MITSUBISHI
1
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ELECTRIC
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46
Page 47
Preliminary Spec.
Mode Register Setting
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
MITSUBISHI LSIs
MH32S64APFB -7,-8
/CS
/RAS
/CAS
CKE
DQM
A0-8
A10
tRC
M
tRSC
tRCD
X
X
Y
A9,11
BA0,1
DQ
MIT-DS-0358-0.2
Auto-Ref (last of 8 cycles)
Mode
Register
Setting
MITSUBISHI
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47
X
0
0
ACT#0WRITE#0
Italic parameter indicates minimum case
0
D0
D0D0D0
16.Mar.2000
Page 48
Preliminary Spec.
Auto-Refresh @BL=4
/WE
After tRC from Auto-Refresh,
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
/CS
tRC
/RAS
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
tRCD
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
Auto-Refresh
X
X
X
0
ACT#0WRITE#0
Y
0
D0
D0D0D0
Before Auto-Refresh,
all banks must be idle state.
MIT-DS-0358-0.2
all banks are idle state.
MITSUBISHI
ELECTRIC
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Italic parameter indicates minimum case
16.Mar.2000
Page 49
Preliminary Spec.
Self-Refresh
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
CLK can be stopped
/CS
/RAS
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
tRC
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
tSRX
CKE must be low to maintain Self-Refresh
X
X
X
0
MIT-DS-0358-0.2
Self-Refresh Entry
Before Self-Refresh Entry,
all banks must be idle state.
After tRC from Self-Refresh Exit,
all banks are idle state.
MITSUBISHI
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Self-Refresh ExitACT#0
Italic parameter indicates minimum case
16.Mar.2000
Page 50
Preliminary Spec.
DQM Write Mask @BL=4
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
/CS
/RAS
tRCD
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
X
X
X
0
ACT#0WRITE#0WRITE#0WRITE#0
Y
00
D0D0D0D0
Y
Y
0
masked
D0D0D0
masked
MIT-DS-0358-0.2
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ELECTRIC
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50
Italic parameter indicates minimum case
16.Mar.2000
Page 51
Preliminary Spec.
DQM Read Mask @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
/CS
/RAS
tRCD
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
DQM read latency=2
X
X
X
0
ACT#0READ#0READ#0READ#0
Y
00
Q0Q0Q0Q0
Y
Y
0
masked
masked
Q0Q0Q0
MIT-DS-0358-0.2
MITSUBISHI
ELECTRIC
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Italic parameter indicates minimum case
16.Mar.2000
Page 52
Preliminary Spec.
Power Down
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112 131415 1617
CLK
/CS
/RAS
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
Standby Power Down
CKE latency=1
X
X
X
0
Precharge AllACT#0
Active Power Down
MIT-DS-0358-0.2
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ELECTRIC
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Italic parameter indicates minimum case
16.Mar.2000
Page 53
Preliminary Spec.
CLK Suspend @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
0123456789101112131415 1617
CLK
/CS
/RAS
tRCD
/CAS
MITSUBISHI LSIs
MH32S64APFB -7,-8
CKE
DQM
A0-8
A10
A9,11
BA0,1
DQ
CKE latency=1
X
X
X
0
ACT#0WRITE#0READ#0
Y
00
D0D0D0
D0
CKE latency=1
Y
Q0Q0Q0Q0
CLK suspendedCLK suspended
MIT-DS-0358-0.2
MITSUBISHI
ELECTRIC
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Italic parameter indicates minimum case
16.Mar.2000
Page 54
Preliminary Spec.
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
OUTLINE
31.75
20.00
4.00
6.00
MITSUBISHI LSIs
MH32S64APFB -7,-8
MIT-DS-0358-0.2
MITSUBISHI
ELECTRIC
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16.Mar.2000
Page 55
Preliminary Spec.
Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products
1.These materials are intended as a reference to assist our customers in the selection of the
a device or system that is used under circumstances in which human life is potentially at stake.
Some contents are subject to change without notice.
2147483648-BIT (33554432 - WORD BY 64-BIT)SynchronousDRAM
Keep safety first in your circuit designs!
better and more reliable, but there is always the possibility that trouble may occur with them.
Trouble with semiconductors may lead to personal injury, fire or property damage.
Remember to give due consideration to safety when making your circuit designs, with
appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonÂflammable material or (iii) prevention against any malfunction or mishap.
Notes regarding these materials
Mitsubishi semiconductor product best suited to the customer's application; they do not
convey any license under any intellectual property rights, or any other rights, belonging to
Mitsubishi Electric Corporation or a third party.
2.Mitsubishi Electric Corporation assumes no responsibility for any damage, or infringement
of any third-party's rights, originating in the use of any product data, diagrams, charts,
programs, algorithms, or circuit application examples contained in these materials.
MITSUBISHI LSIs
MH32S64APFB -7,-8
3.All information contained in these materials, including product data, diagrams, charts,
programs and algorithms represents information on products at the time of publication of
these materials, and are subject to change by Mitsubishi Electric Corporation without notice
due to product improvements or other reasons. It is therefore recommended that customers
contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product
distributor for the latest product information before purchasing a product listed herein.
The information described here may contain technical inaccuracies or typographical errors.
Mitsubishi Electric Corporation assumes no responsibility for any damage, liability, or other
loss rising from these inaccuracies or errors.
Please also pay attention to information published by Mitsubishi Electric Corporation by
various means, including the Mitsubishi Semiconductor home page
(http://www.mitsubishichips.com).
4.When using any or all of the information contained in these materials, including product
data, diagrams, charts, programs and algorithms, please be sure to evaluate all information
as a total system before making a final decision on the applicability of the information and
products.
Mitsubishi Electric Corporation assumes no responsibility for any damage, liability or other
loss resulting from the information contained herein.
5.Mitsubishi Electric Corporation semiconductors are not designed or manufactured for use in
Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor
product distributor when considering the use of a product contained herein for any specific
purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace,
nuclear, or undersea repeater use.
6.The prior written approval of Mitsubishi Electric Corporation is necessary to reprint or
reproduce in whole or in part these materials.
7.If these products or technologies are subject to the Japanese export control restrictions, they
must be exported under a license from the Japanese government and cannot be imported
into a country other than the approved destination.
Any diversion or reexport contrary to the export control laws and regulations of Japan and/or
the country of destination is prohibited.
8.Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor
product distributor for further details on these materials or the products contained therein.
MIT-DS-0358-0.2
MITSUBISHI
ELECTRIC
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16.Mar.2000
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