TSOP package , industry standard Resister in TSSOP package ,
Frequency
(CL = 4)
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
The MH32S72DBFA is 33554432 - word x 72-bit
Synchronous DRAM stacked structural module. This
consist of thirty-six industry standard 16M x 4
Synchronous DRAMs in TSOP.
The stacked structure of TSOP on a card edge dual inĀline package provides any application where high
densities and large of quantities memory are required.
This is a socket-type memory module ,suitable for
easy interchange or addition of module.
MITSUBISHI LSIs
MH32S72DBFA -6
85pin
1pin
FEATURES
CLK
Max.
Utilizes industry standard 16M X 4 Synchronous DRAMs in
and industry standard PLL in TSSOP package.
Single 3.3V +/- 0.3V supply
Burst length 1/2/4/8/Full Page (programmable)
Burst type sequential / interleave (programmable)
Column access random
Burst Write / Single Write (programmable)
Auto precharge / Auto bank precharge controlled by A10
Auto refresh and Self refresh
LVTTL Interface
4096 refresh cycles every 64ms
APPLICATION
Main memory unit for computers, Microcomputer memory.
Access Time
[latch mode]
94pin
95pin
124pin
125pin
168pin
10pin
11pin
40pin
41pin
84pin
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
1
Page 2
Preliminary Spec.
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
PIN NO.PIN NAMEPIN NO.PIN NAMEPIN NO.PIN NAMEPIN NO.PIN NAME
the bank to which a command is applied.BA must be set
Register enable:When REGE is low,All control signals and
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CK0
CKE0
/S0 - 3
/RAS,/CAS,/W
A0-11
BA0-1
Input
Input
Input
Input
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 E becomes asynchronous input.Self
refresh is maintained as long as CKE is low.
Chip Select: When /S is high,any command means
No Operation.
Combination of /RAS,/CAS,/W defines basic commands.
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, both banks are precharged.
Bank Address:BA0,1 is not simply BA.BA0,1 specifies
with ACT,PRE,READ,WRITE commands
DQ0-63
CB0-7
DQM0-7
Vdd,Vss
REGE
MIT-DS-352-0.0
Input/Output
Input
Power Supply
Output
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.
address are buffered. (Buffer mode) When REGE is
high,All control and address are latched. (Latch mode)
MITSUBISHI
ELECTRIC
30/Sep. /1999
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Page 5
Preliminary Spec.
BASIC FUNCTIONS
Each command is defined by control signals of /RAS,/CAS and /WE at CK rising edge. In
READ command starts burst read from the active bank indicated by BA.First output
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
The MH32S72DBFA provides basic functions,bank(row)activate,burst read / write,
bank(row)precharge,and auto / self refresh.
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.
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]
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]
PEFA command starts auto-refresh cycle. Refresh address including bank address
are generated internally. After this command, the banks are precharged automatically.
MIT-DS-352-0.0
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30/Sep. /1999
ELECTRIC
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Page 6
Preliminary Spec.
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
COMMAND TRUTH TABLE
MITSUBISHI LSIs
MH32S72DBFA -6
COMMAND
Deselect
No Operation
Row Address Entry &
Bank Activate
Single Bank Precharge
Precharge All Banks
Column Address Entry
& Write
Column Address Entry
& Write with Auto-
Precharge
Column Address Entry
& Read
Column Address Entry
& Read with Auto-
Precharge
Auto-Refresh
Self-Refresh Entry
Self-Refresh Exit
Burst Terminate
Mode Register Set
MNEMONIC
DESEL
NOP
ACT
PRE
PREA
WRITE
WRITEA
READ
READA
REFA
REFS
REFSX
TBST
MRS
CKE
n-1
H
H
H
H
H
H
H
H
H
H
H
L
L
H
H
CKE
n
X
X
X
X
X
X
X
X
X
H
L
H
H
X
X
/CS
H
L
L
L
L
L
L
L
L
L
L
H
L
L
L
/RAS
X
H
L
L
L
H
H
H
H
L
L
X
H
H
L
/CAS
X
H
H
H
H
L
L
L
L
L
L
X
H
H
L
/WE
X
H
H
L
L
L
L
H
H
H
H
X
H
L
L
BA0,1
X
X
V
V
X
V
V
V
V
X
X
X
X
X
L
A11
X
X
V
X
X
X
X
X
X
X
X
X
X
X
L
A10
X
X
V
L
H
L
H
L
H
X
X
X
X
X
L
A0-9
X
X
V
X
X
V
V
V
V
X
X
X
X
X
V*1
H=High Level, L=Low Level, V=Valid, X=Don't Care, n=CLK cycle number
NOTE:
1. A7-A9 =0, A0-A6 =Mode Address
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
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Page 7
Preliminary Spec.
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
FUNCTION TRUTH TABLE
MITSUBISHI LSIs
MH32S72DBFA -6
Current State
IDLE
ROW ACTIVE
READ
/S
/RAS
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
/CAS
X
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
/WE
X
H
H
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
L
X
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
Address
X
X
BA
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
X
X
BA
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
X
X
BA
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
Command
DESEL
NOP
TBST
READ/WRITE
ACT
PRE/PREA
REFA
MRS
DESEL
NOP
TBST
READ/READA
WRITE/
WRITEA
ACT
PRE/PREA
REFA
MRS
DESEL
NOP
TBST
READ/READA
WRITE/WRITEA
ACT
PRE/PREA
REFA
MRS
Action
NOP
NOP
ILLEGAL*2
ILLEGAL*2
Bank Active,Latch RA
NOP*4
Auto-Refresh*5
Mode Register Set*5
NOP
NOP
NOP
Begin Read,Latch CA,
Determine Auto-Precharge
Begin Write,Latch CA,
Determine Auto-Precharge
Bank Active/ILLEGAL*2
Precharge/Precharge All
ILLEGAL
ILLEGAL
NOP(Continue Burst to END)
NOP(Continue Burst to END)
Terminate Burst
Terminate Burst,Latch CA,
Begin New Read,Determine
Auto-Precharge*3
Terminate Burst,Latch CA,
Begin Write,Determine AutoĀPrecharge*3
Bank Active/ILLEGAL*2
Terminate Burst,Precharge
ILLEGAL
ILLEGAL
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
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Page 8
Preliminary Spec.
FUNCTION TRUTH TABLE
(continued)
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
Current State
WRITE
READ with
AUTO
PRECHARGE
WRITE with
AUTO
PRECHARGEL
/S
/RAS
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
/CAS
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
/WE
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
Address
X
X
BA
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
X
X
BA
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
X
X
BA
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
Command
DESEL
NOP
TBST
READ/READA
WRITE/
WRITEA
ACT
PRE/PREA
REFA
MRS
DESEL
NOP
TBST
READ/READA
WRITE/
WRITEA
ACT
PRE/PREA
REFA
MRS
DESEL
NOP
TBST
READ/READA
WRITE/
WRITEA
ACT
PRE/PREA
REFA
MRS
Action
NOP(Continue Burst to END)
NOP(Continue Burst to END)
Terminate Burst
Terminate Burst,Latch CA,
Begin Read,Determine Auto-
Precharge*3
Terminate Burst,Latch CA,
Begin Write,Determine AutoĀPrecharge*3
Bank Active/ILLEGAL*2
Terminate Burst,Precharge
ILLEGAL
ILLEGAL
NOP(Continue Burst to END)
NOP(Continue Burst to END)
ILLEGAL
ILLEGAL
ILLEGAL
Bank Active/ILLEGAL*2
ILLEGAL*2
ILLEGAL
ILLEGAL
NOP(Continue Burst to END)
NOP(Continue Burst to END)
ILLEGAL
ILLEGAL
ILLEGAL
Bank Active/ILLEGAL*2
ILLEGAL*2
ILLEGAL
ILLEGAL
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
8
Page 9
Preliminary Spec.
Some contents are subject to change without notice.
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
FUNCTION TRUTH TABLE(continued)
MITSUBISHI LSIs
Current State
PRE -
CHARGING
ROW
ACTIVATING
/S
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
/RAS
X
H
H
H
L
L
L
L
X
H
H
H
L
L
L
L
/CAS
X
H
H
L
H
H
L
L
X
H
H
L
H
H
L
L
/WE
X
H
L
X
H
L
H
L
X
H
L
X
H
L
H
L
Address
X
X
BA
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
X
X
BA
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
Command
DESEL
NOP
TBST
READ/WRITE
ACT
PRE/PREA
REFA
MRS
DESEL
NOP
TBST
READ/WRITE
ACT
PRE/PREA
REFA
MRS
Action
NOP(Idle after tRP)
NOP(Idle after tRP)
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
NOP*4(Idle after tRP)
ILLEGAL
ILLEGAL
NOP(Row Active after tRCD
NOP(Row Active after tRCD
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL
ILLEGAL
WRITE RE-
COVERING
MIT-DS-352-0.0
H
L
L
L
L
L
L
L
X
H
H
H
L
L
L
L
X
H
H
L
H
H
L
L
X
H
L
X
H
L
H
L
X
X
BA
BA,CA,A10
BA,RA
BA,A10
X
Mode-Add
Op-Code,
MITSUBISHI
DESEL
NOP
TBST
READ/WRITE
ACT
PRE/PREA
REFA
MRS
NOP
NOP
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL*2
ILLEGAL
ILLEGAL
30/Sep. /1999
9
ELECTRIC
Page 10
Preliminary Spec.
1. All entries assume that CKE was High during the preceding clock cycle and the current
Some contents are subject to change without notice.
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
FUNCTION TRUTH TABLE(continued)
MITSUBISHI LSIs
Current State
RE-
FRESHING
MODE
REGISTER
SETTING
/S
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
/RAS
X
H
H
H
L
L
L
L
X
H
H
H
L
L
L
/CAS
X
H
H
L
H
H
L
L
X
H
H
L
H
H
L
/WE
X
H
L
X
H
L
H
L
X
H
L
X
H
L
H
Address
X
X
BA
BA,CA,A10
BA,RA
BA,A10
X
Op-Code,
Mode-Add
X
X
BA
BA,CA,A10
BA,RA
BA,A10
X
Command
DESEL
NOPNOP(Idle after tRC)
TBST
READ/WRITE
ACT
PRE/PREA
REFA
MRS
DESEL
NOP
TBST
READ/WRITE
ACT
PRE/PREA
REFA
NOP(Idle after tRC)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP(Idle after tRSC)
NOP(Idle after tRSC)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Action
L
L
L
L
Op-Code,
Mode-Add
MRS
ILLEGAL
ABBREVIATIONS:
H = Hige Level, L = Low Level, X = Don't Care
BA = Bank Address, RA = Row Address, CA = Column Address, NOP = No Operation
NOTES:
clock cycle.
2. ILLEGAL to bank in specified state; function may be legal in the bank indicated by BA,
depending on the state of that bank.
3. Must satisfy bus contention, bus turn around, write recovery requirements.
4. NOP to bank precharging or in idle state.May precharge bank indicated by BA.
5. ILLEGAL if any bank is not idle.
ILLEGAL = Device operation and / or date-integrity are not guaranteed.
MIT-DS-352-0.0
MITSUBISHI
30/Sep. /1999
ELECTRIC
10
Page 11
Preliminary Spec.
2. Power-Down and Self-Refresh can be entered only form the All banks idle State.
Some contents are subject to change without notice.
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
FUNCTION TRUTH TABLE FOR CKE
MITSUBISHI LSIs
Current State
SELF -
REFRESH*1
POWER
DOWN
ALL BANKS
IDLE*2
ANY STATE
other than
listed above
CK
n-1
CK
n
H
L
L
L
L
L
L
H
L
L
H
H
H
H
H
H
H
L
H
H
L
L
X
H
H
H
H
H
L
X
H
L
H
L
L
L
L
L
L
X
H
L
H
L
/S
X
H
L
L
L
L
X
X
X
X
X
L
H
L
L
L
L
X
X
X
X
X
/RAS
X
X
H
H
H
L
X
X
X
X
X
L
X
H
H
H
L
X
X
X
X
X
/CAS
X
X
H
H
L
X
X
X
X
X
X
L
X
H
H
L
X
X
X
X
X
X
/WE
X
X
H
L
X
X
X
X
X
X
X
H
X
H
L
X
X
X
X
X
X
X
Add
X
INVALID
Exit Self-Refresh(Idle after tRC)
X
Exit Self-Refresh(Idle after tRC)
X
ILLEGAL
X
ILLEGAL
X
ILLEGAL
X
NOP(Maintain Self-Refresh)
X
X
INVALID
Exit Power Down to Idle
X
NOP(Maintain Self-Refresh)
X
X
Refer to Function Truth Table
Enter Self-Refresh
X
Enter Power Down
X
Enter Power Down
X
ILLEGAL
X
ILLEGAL
X
ILLEGAL
X
Refer to Current State = Power Down
X
X
Refer to Function Truth Table
Begin CK0 Suspend at Next Cycle*3
X
X
Exit CK0 Suspend at Next Cycle*3
X
Maintain CK0 Suspend
Action
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.
3. Must be legal command.
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
11
Page 12
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
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
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, DQMB high and NOP
condition at the inputs.
2. Maintain stable power, stable cock, and NOP input conditions for a minimum of 500µs.
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.
BA0
0
LATENCY
MODE
BA1
0
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
0
CL
A9
A10
0
/CAS LATENCY
WM
A8
0
R
R
2
3
R
R
R
R
A7
0
A5
A6
LTMODE
A4
A3
BT
BURST
A2
BL
BA0,1 A11-A0
A1
A0
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
CLK
/CS
/RAS
/CAS
/WE
BT= 0
1
2
4
8
R
R
R
FP
V
BT= 1
1
2
4
8
R
R
R
R
WRITE
MODE
MIT-DS-352-0.0
0
1
BURST
SINGLE BIT
TYPE
MITSUBISHI
0
1
R: Reserved for Future Use
FP: Full Page
ELECTRIC
SEQUENTIAL
INTERLEAVED
30/Sep. /1999
12
Page 13
Preliminary Spec.
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
CK
MITSUBISHI LSIs
MH32S72DBFA -6
Command
Address
DQ
CL= 3
BL= 4
Initial Address BL
A2
0
0
0
0
1
A1
0
0
1
1
0
A0
0
1
0
1
8
0
Read
Y
/CAS Latency
1
0
2
1
3
2
4
3
5
4
Sequential
3
2
4
3
5
4
6
5
7
6
Q0Q1Q2Q3
Burst Length
Column Addressing
5
4
6
5
7
6
0
7
1
0
7
6
0
7
1
0
2
1
3
2
Burst Type
1
0
0
1
3
2
2
3
5
4
Write
Y
D0D1
Burst Length
Interleaved
3
2
2
3
1
0
0
1
7
6
D3
D2
5
4
4
5
7
6
6
7
1
0
7
6
6
7
5
4
4
5
3
2
0
1
1
1
-
-
-
-
-
-
MIT-DS-352-0.0
1
0
1
1
1
0
0
0
1
0
1
1
1
0
-
-
1
6
5
7
6
0
7
1
0
2
1
4
3
2
0
3
1
0
2
1
0
0
7
1
0
2
1
3
2
0
3
1
0
1
2
2
1
3
2
3
4
MITSUBISHI
4
3
5
4
5
6
4
5
7
6
6
7
1
0
0
1
3
2
2
3
1
0
1
0
6
7
5
4
4
5
3
2
2
3
1
0
1
0
0
1
3
2
3
2
2
3
1
0
1
0
30/Sep. /1999
13
ELECTRIC
Page 14
Preliminary Spec.
ABSOLUTE MAXIMUM RATINGS
mA
RECOMMENDED OPERATING CONDITION
CAPACITANCE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
Symbol
Vdd
VI
VO
IO
Pd
Topr
Tstg
Operating Temperature
Parameter
Supply Voltage
Input Voltage
Output Voltage
Output Current
Power Dissipation
Storage Temperature
(Ta=0 ~ 70°C, unless otherwise noted)
Symbol
Vdd
Parameter
Supply Voltage
Condition
with respect to Vss
with respect to Vss
with respect to Vss
Ta=25°C
Min.
3.0
Limits
Typ.
3.3
Ratings
-0.5 ~ 4.6
-0.5 ~ 4.6
-0.5 ~ 4.6
50
39
0 ~ 70
-40 ~ 100
Max.
3.6
Unit
V
V
V
W
°C
°C
Unit
V
Vss
VIH
VIL
Note)
1:VIH(max)=5.5V for pulse width less than 10ns.
tCLCK Low pulse width
tTTransition time of CK
tISInput Setup time(all inputs)
tIHInput Hold time(all inputs)
tRCRow Cycle time
tRFCRow Refresh Cycle time
tRCDRow to Column Delay
tRASRow Active time
tRPRow Precharge time
tWR
Write Recovery time
tRRDAct to Act Deley time
tRSCMode Register Set Cycle time
tSRX
tPDEPower Down Exit time
tREFRefresh Interval time
CL=3
CL=47.5ns
Min.Max.
10
2.5
2.5
1
1.5
0.8
67.5
75
20
45
20
15
15
10
7.5
7.5
Limits
10
100K
64
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
CK
1.4V
Any AC timing is
referenced to the input
signal crossing
Signal
MIT-DS-352-0.0
1.4V
MITSUBISHI
through 1.4V.
30/Sep. /1999
ELECTRIC
16
Page 17
Preliminary Spec.
SWITCHING CHARACTERISTICS
Parameter
Output Hold time
Parameter
Self Refresh Exit time
Note:1 The timing requirements are assumed tT=1ns.If tT is longer than 1ns,(tT-1)ns
should be added to the parameter.
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
BUFFER MODE
Limits
Symbol
CL=2
tCLKCK cycle time
CL=3ns
tCHCK High pulse widthns
tCLCK Low pulse width
tTTransition time of CK
tISInput Setup time(all inputs)
tIHInput Hold time(all inputs)ns
tRCRow Cycle time
tRFCRow Refresh Cycle time
tRCDRow to Column Delay
tRASRow Active time
tRPRow Precharge time
tWR
Write Recovery time
tRRDAct to Act Deley time
tRSCMode Register Set Cycle time
tSRX
tPDEPower Down Exit time
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
Burst WRITE (multi bank) with AUTO-PRECHARGEBL=4,Buffer mode(REGE="L")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
X
1
tRRD
2
tRCD
4
3
Y
X
6
5
tRC
BL-1+ tWR + tRP
7
YX
8
10
9
BL-1+ tWR + tRP
11
12
tRRD
tRCD
13
14
Y
16
15
X
17
tRCD
Y
A10
A11
BA0,1
REGE
DQ
MIT-DS-352-0.0
X
X
0
ACT#0
X
X
1
ACT#1
01
D0D0D0D0
WRITE#0 with
AutoPrecharge
D1D1D1D1
ACT#0
WRITE#1 with
AutoPrecharge
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
X
X
0
WRITE#0
X
X
0
1
D0D0D0D0
ACT#1
WRITE#1
30/Sep. /1999
1
D1
27
Page 28
Preliminary Spec.
/WE
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
Burst WRITE (multi bank) with AUTO-PRECHARGEBL=4,Latch mode(REGE="H")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
X
1
tRRD
2
tRCD
4
3
Y
X
6
5
tRC
BL-1+ tWR + tRP
7
YX
8
10
9
BL-1+ tWR + tRP
11
tRCD
12
tRRD
13
14
Y
X
15
16
tRCD
17
Y
A10
A11
BA0,1
REGE
DQ
MIT-DS-352-0.0
X
X
0
ACT#0
ACT#1
X
X
01
1
D0D0D0D0
WRITE#0 with
AutoPrecharge
D1D1D1D1
ACT#0
WRITE#1 with
AutoPrecharge
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
X
X
0
WRITE#0
X
X
0
1
D0D0D0D0
ACT#1
30/Sep. /1999
1
WRITE#1
28
Page 29
Preliminary Spec.
/WE
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
Burst READ (multi bank) with AUTO-PRECHARGEBL=4,Buffer mode(REGE="L")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
X
1
tRRD
tRCD
2
X
4
3
Y
6
5
tRC
BL+tRP
DQM read latency =2
8
7
Y
10
9
BL+tRP
X
11
12
tRRD
tRCD
13
14
Y
16
15
X
17
tRCD
Y
A10
A11
BA0,1
REGE
DQ
MIT-DS-352-0.0
X
X
0
ACT#0
ACT#1
X
X
0
1
CL=3
READ#0 with
Auto-Precharge
1
CL=3
Q0Q0Q0Q0
READ#1 with
Auto-Precharge
MITSUBISHI
ELECTRIC
X
X
0
Q1Q1Q1Q1
ACT#0
Italic parameter indicates minimum case
READ#0
0
X
X
1
CL=3
ACT#1
1
Q0
Q0
30/Sep. /1999
29
Page 30
Preliminary Spec.
/WE
Some contents are subject to change without notice.
MITSUBISHI LSIs
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
Burst READ (multi bank) with AUTO-PRECHARGEBL=4,Latch mode(REGE="H")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
X
1
tRRD
tRCD
2
X
4
3
Y
6
5
tRC
BL+tRP
DQM read latency =3
8
7
Y
10
9
BL+tRP
X
11
12
tRRD
tRCD
13
14
Y
16
15
X
17
tRCD
Y
A10
A11
BA0,1
REGE
DQ
MIT-DS-352-0.0
X
X
0
ACT#0
ACT#1
X
X
0
1
CL=3
READ#0 with
Auto-Precharge
1
CL=3
Q0Q0Q0Q0
READ#1 with
Auto-Precharge
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
X
X
0
Q1Q1Q1Q1
ACT#0
READ#0
0
X
X
1
CL=3
ACT#1
30/Sep. /1999
Q0
1
Q0
30
Page 31
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Page Mode Burst Write (multi bank)
1
0
tRRD
2
tRCD
3
5
4
7
6
BL=4,Buffer mode(REGE="L")
9
8
10
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
REGE
DQ
X
X
X
0
ACT#0
Y
X
X
X
00
1
D0D0D0D0
WRITE#0
ACT#1
YY
D0D0D0D0D0D0D0
WRITE#0
Y
1
D1D1D1D1
WRITE#1
Italic parameter indicates minimum case
0
WRITE#0
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
31
Page 32
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Page Mode Burst Write (multi bank)
1
0
tRRD
2
tRCD
3
5
4
7
6
BL=4,Latch mode(REGE="H")
9
8
10
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
REGE
DQ
X
X
X
0
ACT#0
Y
X
X
X
00
1
D0D0D0D0
WRITE#0
ACT#1
YY
D0D0D0D0D0D0
WRITE#0
Y
1
D1D1D1D1
WRITE#0
WRITE#1
Italic parameter indicates minimum case
0
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
32
Page 33
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Page Mode Burst Read (multi bank)
1
0
tRRD
2
tRCD
3
5
4
7
6
BL=4,Buffer mode(REGE="L")
9
8
10
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
REGE
DQ
X
X
X
0
ACT#0
DQM read latency=2
Y
X
X
X
00
1
CL=3
READ#0
ACT#1
YY
CL=3
Q0Q0Q0
Q0
READ#0
Y
1
CL=3
Q0Q0Q0Q0
READ#1
0
Q1Q1Q1Q1
READ#0
MIT-DS-352-0.0
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
30/Sep. /1999
33
Page 34
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Page Mode Burst Read (multi bank)
1
0
tRRD
tRCD
3
2
5
4
7
6
BL=4,Latch mode(REGE="H")
9
8
10
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
REGE
DQ
X
X
X
0
ACT#0
DQM read latency=3
Y
X
X
X
00
1
CL=3
READ#0
ACT#1
YY
CL=3
Q0Q0Q0
Q0
READ#0
Y
1
CL=3
Q0Q0Q0Q0
READ#1
0
Q1Q1Q1Q1
READ#0
MIT-DS-352-0.0
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
30/Sep. /1999
34
Page 35
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Write Interrupted by Write / Read
0
1
tRRD
2
tRCD
4
3
5
6
tCCD
7
BL=4,Buffer mode(REGE="L")
8
10
9
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
REGE
DQ
X
X
X
0
ACT#0
ACT#1
Burst Write can be interrupted by Write or Read of any active bank.
Y
X
X
X
0
1
D0D0D0D0
WRITE#0
YY
000
WRITE#0
Y
1
D0D0D1D1Q0Q0Q0
WRITE#0
WRITE#1
Y
READ#0
Italic parameter indicates minimum case
CL=3
Q0
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
35
Page 36
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Write Interrupted by Write / Read
0
1
tRRD
2
tRCD
4
3
5
6
tCCD
7
BL=4,Latch mode(REGE="H")
8
10
9
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
REGE
DQ
X
X
X
0
ACT#0
ACT#1
Burst Write can be interrupted by Write or Read of any active bank.
Y
X
X
X
0
1
WRITE#0
YY
000
D0D0D0D0
WRITE#0
WRITE#0
Y
1
D0D0D1D1Q0Q0Q0
WRITE#1
Y
READ#0
Italic parameter indicates minimum case
CL=3
Q0
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
36
Page 37
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Read Interrupted by Read / Write
1
0
tRRD
tRCD
3
2
5
4
6
DQM read latency=2
BL=4,Buffer mode(REGE="L")
7
9
8
10
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
DQ
REGE
X
X
X
0
ACT#0
ACT#1
Burst Read can be interrupted by Read or Write of any active bank.
Y
X
X
X
00
1
READ#0
YY
Q0Q0Q0
READ#0
Y
0
Q0
READ#0
Y
1
READ#1
Y
0
Q0Q0Q1Q1
READ#0
0
Q0D0D0
WRITE#0
blank to prevent bus contention
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
Italic parameter indicates minimum case
30/Sep. /1999
37
Page 38
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Read Interrupted by Read / Write
1
0
tRRD
tRCD
3
2
5
4
6
DQM read latency=3
BL=4,Latch mode(REGE="H")
7
9
8
10
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
DQ
REGE
X
X
X
0
ACT#0
ACT#1
Burst Read can be interrupted by Read or Write of any active bank.
Y
X
X
X
00
1
READ#0
YY
Q0Q0Q0
READ#0
Y
0
Q0
READ#0
Y
1
READ#1
Y
0
Q0Q0Q1Q1
READ#0
0
Q0D0
WRITE#0
blank to prevent bus contention
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
Italic parameter indicates minimum case
30/Sep. /1999
38
Page 39
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Write Interrupted by Precharge
0
1
tRRD
2
tRCD
4
3
6
5
BL=4,Buffer mode(REGE="L")
8
7
10
9
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
DQ
REGE
X
X
X
0
ACT#0
Y
X
X
X
0
1
D0D0D0D0
WRITE#0
ACT#1
Burst Write is not interrupted
by Precharge of the other bank.
WRITE#1
Y
0
1
PRE#1
Burst Write is interrupted by
Precharge of the same bank.
11
D1D1D1D1D1
PRE#0
X
X
X
1
ACT#1
Y
WRITE#1
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
Italic parameter indicates minimum case
30/Sep. /1999
39
Page 40
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Write Interrupted by Precharge
0
1
tRRD
tRCD
2
4
3
6
5
BL=4,Latch mode(REGE="H")
8
7
10
9
11
12
13
14
15
16
17
A0-9
A10
A11
BA0,1
DQ
REGE
X
X
X
0
ACT#0
Y
X
X
X
0
1
D0D0D0D0
WRITE#0
ACT#1
Burst Write is not interrupted
by Precharge of the other bank.
WRITE#1
Y
11
PRE#0
1
0
D1D1D1D1D1
PRE#1
Burst Write is interrupted by
Precharge of the same bank.
X
X
X
1
ACT#1
Y
WRITE#1
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
Italic parameter indicates minimum case
30/Sep. /1999
40
Page 41
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Read Interrupted by Precharge
0
1
tRRD
2
tRCD
4
3
6
5
DQM read latency=2
BL=4,Buffer mode(REGE="L")
8
7
10
9
11
tRP
12
13
14
tRCD
15
16
17
A0-9
A10
A11
BA0,1
DQ
REGE
X
X
X
0
ACT#0
Y
X
X
X
0
1
READ#0
ACT#1
Burst Read is not interrupted
by Precharge of the other bank.
Y
1
Q0Q0Q0
Q0
READ#1
0
PRE#0
X
X
X
1
Q1Q1
PRE#1
Burst Read is interrupted
by Precharge of the same bank.
Italic parameter indicates minimum case
1
ACT#1
Y
1
READ#1
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
41
Page 42
Preliminary Spec.
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
Read Interrupted by Precharge
0
1
tRRD
tRCD
2
4
3
6
5
BL=4,Latch mode(REGE="H")
8
7
10
9
11
tRP
12
13
14
tRCD
15
16
17
A0-9
A10
A11
BA0,1
DQ
REGE
X
X
X
0
ACT#0
DQM read latency=3
Y
X
X
X
0
1
READ#0
ACT#1
Burst Read is not interrupted
by Precharge of the other bank.
Y
1
Q0Q0Q0
Q0
READ#1
0
PRE#0
X
X
X
1
Q1Q1
PRE#1
Burst Read is interrupted
by Precharge of the same bank.
1
ACT#1
Y
1
READ#1
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
Italic parameter indicates minimum case
30/Sep. /1999
42
Page 43
Preliminary Spec.
Mode Register Setting
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
1
0
3
2
5
4
tRC
7
6
9
8
M
10
tRSC
11
13
12
tRCD
X
14
15
Y
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
Auto-Ref (last of 8 cycles)
0
Mode
Register
Setting
MITSUBISHI
ELECTRIC
X
X
0
ACT#0
Italic parameter indicates minimum case
0
D0
D0D0D0
WRITE#0
30/Sep. /1999
43
Page 44
Preliminary Spec.
Auto-Refresh @BL=4
/WE
After tRC from Auto-Refresh,
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
1
0
3
2
5
4
tRC
7
6
9
8
X
10
11
tRCD
12
13
Y
14
15
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
Auto-Refresh
Before Auto-Refresh,
all banks must be idle state.
X
X
0
ACT#0
all banks are idle state.
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
0
D0
D0D0D0
WRITE#0
30/Sep. /1999
44
Page 45
Preliminary Spec.
Self-Refresh
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
1
0
CKE must be low to maintain Self-Refresh
3
2
CLK can be stopped
5
4
7
6
tSRX
9
8
10
11
12
tRC
13
14
15
17
16
X
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
Self-Refresh Entry
Before Self-Refresh Entry,
all banks must be idle state.
Self-Refresh Exit
After tRC from Self-Refresh Exit,
all banks are idle state.
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
X
X
0
ACT#0
30/Sep. /1999
45
Page 46
Preliminary Spec.
DQM Write Mask @BL=4
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
BL=4,Buffer mode(REGE="L")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
X
1
2
tRCD
4
3
Y
6
5
8
7
Y
10
9
11
12
Y
13
14
15
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
X
X
0
ACT#0
00
D0D0D0D0
WRITE#0
masked
WRITE#0
MITSUBISHI
ELECTRIC
0
masked
D0D0D0
WRITE#0
Italic parameter indicates minimum case
30/Sep. /1999
46
Page 47
Preliminary Spec.
DQM Write Mask @BL=4
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
BL=4,Latch mode(REGE="H")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
X
1
2
tRCD
4
3
Y
6
5
8
7
Y
10
9
11
12
Y
13
14
15
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
X
X
0
ACT#0
00
D0D0D0D0
WRITE#0
masked
WRITE#0
MITSUBISHI
ELECTRIC
0
masked
D0D0D0
WRITE#0
Italic parameter indicates minimum case
30/Sep. /1999
47
Page 48
Preliminary Spec.
DQM Read Mask @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
BL=4,Buffer mode(REGE="L")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
X
1
2
tRCD
4
3
Y
6
5
8
7
DQM read latency=2
Y
10
9
11
12
Y
13
14
15
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
X
X
0
ACT#0
00
Q0Q0Q0Q0
READ#0
READ#0
MITSUBISHI
ELECTRIC
0
masked
READ#0
Italic parameter indicates minimum case
masked
Q0Q0Q0
30/Sep. /1999
48
Page 49
Preliminary Spec.
DQM Read Mask @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
BL=4,Latch mode(REGE="H")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
X
1
2
tRCD
4
3
Y
6
5
8
7
DQM read latency=3
Y
10
9
11
12
Y
13
14
15
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
X
X
0
ACT#0
00
Q0Q0Q0Q0
READ#0
READ#0
MITSUBISHI
ELECTRIC
0
masked
READ#0
Italic parameter indicates minimum case
masked
Q0Q0Q0
30/Sep. /1999
49
Page 50
Preliminary Spec.
Power Down
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
0
2
1
4
3
Standby Power Down
6
5
8
7
CKE latency=1
9
10
X
11
12
14
13
Active Power Down
15
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
Precharge All
X
X
0
ACT#0
MITSUBISHI
ELECTRIC
Italic parameter indicates minimum case
30/Sep. /1999
50
Page 51
Preliminary Spec.
CLK Suspend @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
BL=4,Buffer mode(REGE="L")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
1
0
tRCD
CKE latency=1
X
3
2
Y
5
4
7
6
9
8
10
CKE latency=1
Y
11
12
13
14
15
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
X
X
0
ACT#0
00
D0D0D0D0
WRITE#0
CLK suspended
READ#0
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
Q0Q0Q0Q0
CLK suspended
30/Sep. /1999
51
Page 52
Preliminary Spec.
CLK Suspend @BL=4 CL=3
/WE
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
BL=4,Latch mode(REGE="H")
CLK
/CS
/RAS
/CAS
CKE
DQM
A0-9
1
0
tRCD
CKE latency=1
X
3
2
Y
5
4
7
6
9
8
10
CKE latency=1
Y
11
12
13
14
15
16
17
A10
A11
BA0,1
DQ
REGE
MIT-DS-352-0.0
X
X
0
ACT#0
00
D0D0D0D0
WRITE#0
CLK suspended
READ#0
Italic parameter indicates minimum case
MITSUBISHI
ELECTRIC
Q0Q0Q0Q0
CLK suspended
30/Sep. /1999
52
Page 53
Preliminary Spec.
Serial Presence Detect Table I
SDRAM Cycletime at Max. Supported CAS Latency (CL).
ECC
Minimum Clock Delay,Back to Back Random Column Addresses
Burst Lengths Supported
1/2/4/8/Full page
buffered,registered
Precharge All,Auto precharge
Write1/Read Burst
SDRAM Access form Clock(2nd highest CAS latency)
SDRAM Access form Clock(3rd highest CAS latency)
MITSUBISHI LSIs
Some contents are subject to change without notice.
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
ByteFunction describedSPD enrty dataSPD DATA(hex)
0Defines # bytes written into serial memory at module mfgr12880
1Total # bytes of SPD memory device256 Bytes08
2Fundamental memory typeSDRAM04
3# Row Addresses on this assemblyA0-A110C
4# Column Addresses on this assembly
5# Module Banks on this assembly
6Data Width of this assembly...
7... Data Width continuation000
8Voltage interface standard of this assemblyLVTTL01
9
Cycle time for CL=3
10SDRAM Access from Clock
tAC for CL=3
11DIMM Configuration type (Non-parity,Parity,ECC)
12Refresh Rate/Typeself refresh(15.625uS)80
13SDRAM width,Primary DRAM
14Error Checking SDRAM data width
15
16
17# Banks on Each SDRAM device4bank04
18CAS# Latency
19CS# Latency001
20Write Latency001
21SDRAM Module Attributes
22SDRAM Device Attributes:General
SDRAM Cycle time(2nd highest CAS latency)
23
24
25SDRAM Cycle time(3rd highest CAS latency)N/A00
Cycle time for CL=2
tAC for CL=2
A0-A90A
2BANK02
x7248
7.5ns
5.4ns54
x404
x404
101
3
N/A
N/A
75
8F
0E
00
02
04
1F
00
26
27Precharge to Active Minimum22.5ns17
28Row Active to Row Active Min.15ns0F
29RAS to CAS Delay Min22.5ns17
30Active to Precharge Min45ns2D
MIT-DS-352-0.0
MITSUBISHI
N/A00
30/Sep. /1999
ELECTRIC
53
Page 54
Preliminary Spec.
Serial Presence Detect Table II
Manufacturing date
4D483332533732444246412D362020202020
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
MITSUBISHI LSIs
MH32S72DBFA -6
31Density of each bank on module
32
Command and Address signal input setup time1.5ns15
33Command and Address signal input hold time
34Data signal input setup time1.5ns
35Data signal input hold time
36-61
62SPD Revision
63Checksum for bytes 0-62
64-71Manufactures Jedec ID code per JEP-108EMITSUBISHI1CFFFFFFFFFFFFFF
72Manufacturing locationMiyoshi,Japan01
73-90Manufactures Part Number
91-92Revision CodePCB revisionrrrr
93-94
95-98Assembly Serial Numberserial numberssssssss
99-125Manufacture Specific Dataoption00
Superset Information (may be used in future)option00
128MByte20
0.8ns08
0.8ns08
rev 202
Check sum
Tajima,Japan02
NC,USA03
Germany04
MH32S72DBFA-6
year/week codeyyww
15
CD
126Intetl specification frequency
127Intel specification CAS# Latency support
128+Unused storage locationsopen00
100MHz64
CL=3,AP,CK0
8D
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
54
Page 55
Preliminary Spec.
Max
Some contents are subject to change without notice.
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
133.35
MITSUBISHI LSIs
MH32S72DBFA -6
3
8.89
11.43
3
24.495
6.35
36.83
42.18
6.35
1.27
54.61
127.35
43.18
6.5
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
55
Page 56
Preliminary Spec.
Mitsubishi Electric Corporation puts the maximum effort into making
non-flammable material or (iii) prevention against any malfunction or mishap.
1.These materials are intended as a reference to assist our customers in the
the products contained therein.
Some contents are subject to change without notice.
MH32S72DBFA -6
2,415,919,104-BIT ( 33,554,432-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
Keep safety first in your circuit designs!
semiconductor products better and more reliable,but there is always the
possibility that trouble may occur with them. Trouble with semiconductors
consideration to safety when making your circuit designs,with appropriate
measures such as (i) placement of substitutive,auxiliary circuits,(ii) use of
Notes regarding these materials
selection of the 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 or ci rcuit application examples contained in
these materials.
MITSUBISHI LSIs
3.All information contained in these materials,including product data,
diagrams and charts,represent 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.
4.Mitsubishi Electric Corporation semiconductors are not designed or
manufactured for use in a device or system that is used under
circumstances in which human life is potentially at stake. Please contact
Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor
product distributor when considering the use of a product contained herein
for special applications,such as apparatus or systems for transportation,
vehicular,medical,aerospace,nuclear,or undersea repeater use.
5.The prior written approval of Mitsubishi Electric Corporation is necessary to
reprint or reproduce in whole or in part these materials.
6.If these products or technologies are subject 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.
7.Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi
Semiconductor product distributor for further details on these materials or
MIT-DS-352-0.0
MITSUBISHI
ELECTRIC
30/Sep. /1999
56
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