The HB54A2568KN is Double Data Rate (DDR)
SDRAM Module, mounted 256M bits DDR SDRAM
(HM5425161BTT) sealed in TSOP package, and 1
piece of serial EEPROM (2k bits EEPROM) for
Presence Detect (PD). The HB54A2568KN is
organized as 16M × 64 × 2 bank mounted 8 pieces of
256M bits DDR SDRAM. Read and write operations
are performed at the cross points of the CK and the
/CK. This high-speed data transfer is realized by the 2
bits prefetch-pipelined architecture. Data strobe (DQS)
both for read and write are available for high speed and
reliable data bus design. By setting extended mode
register, the on-chip Delay Locked Loop (DLL) can be
set enable or disable. An outline of the products is
200-pin socket type package (dual lead out).
Therefore, it makes high density mounting possible
without surface mount technology. It provides common
data inputs and outputs. Decoupling capacitors are
mounted beside each TSOP on the module board.
(32M words
××××
64 bits, 2 Banks)
Features
• 200-pin socket type package (dual lead out)
Outline: 67.6mm (Length) × 31.75mm (Height) ×
3.80mm (Thickness)
Lead pitch: 0.6mm
• 2.5V power supply (VCC)
• SSTL-2 interface for all inputs and outputs
• Clock frequency: 133 MHz (max) (-A75B/B75B)
: 100 MHz (max) (-10B)
• Data inputs, outputs and DM are synchronized with
DQS
• 4 banks can operate simultaneously and
independently (Component)
• Burst read/write operation
• Programmable burst length: 2, 4, 8
Burst read stop capability
• Programmable burst sequence
Sequential
Interleave
• Start addressing capability
Even and Odd
• Programmable /CAS latency (CL): 2, 2.5
• 8192 refresh cycles: 7.8µs (8192row /64ms)
• 2 variations of refresh
Auto refresh
Self refresh
Document No. E0148H20 (Ver. 2.0)
Date Published April 2002 (K) Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2001-2002
Hitachi, Ltd. 2001
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.
65 to 71 Manufacturer’s JEDEC ID code 0 0 0 0 0 0 0 0 00
72 Manufacturing location × × × × × × × × ××
73 Module part number 0 1 0 0 1 0 0 0 48 H
74 Module part number 0 1 0 0 0 0 1 0 42 B
75 Module part number 0 0 1 1 0 1 0 1 35 5
76 Module part number 0 0 1 1 0 1 0 0 34 4
77 Module part number 0 1 0 0 0 0 0 1 41 A
78 Module part number 0 0 1 1 0 0 1 0 32 2
79 Module part number 0 0 1 1 0 1 0 1 35 5
80 Module part number 0 0 1 1 0 1 1 0 36 6
81 Module part number 0 0 1 1 1 0 0 0 38 8
82 Module part number 0 1 0 0 1 0 1 1 4B K
83 Module part number 0 1 0 0 1 1 1 0 4E N
84 Module part number 0 0 1 0 1 1 0 1 2D —
85
-B75B 0 1 0 0 0 0 1 0 42 B
-10B 0 0 1 1 0 0 0 1 31 1
86
-10B 0 0 1 1 0 0 0 0 30 0
87
-10B 0 1 0 0 0 0 1 0 42 B
88
-10B 0 0 1 0 0 0 0 0 20 (Space)
89 to 90 Module part number 0 0 1 0 0 0 0 0 20 (Space)
91 Revision code 0 0 1 1 0 0 0 0 30 Initial
92 Revision code 0 0 1 0 0 0 0 0 20 (Space)
93 Manufacturing date × × × × × × × × ××
94 Manufacturing date × × × × × × × × ××
95 to 98 Module serial number *3
99 to 127 Manufacturer specific data *4
Checksum for bytes 0 to 62
-A75B
Module part number
-A75B
Module part number
-A75B/B75B
Module part number
-A75B/B75B
Module part number
-A75B/B75B
1 0 0 1 1 1 0 0 9C 156
2
(ASCII-8bit
*
code)
0 1 0 0 0 0 0 1 41 A
0 0 1 1 0 1 1 1 37 7
0 0 1 1 0 1 0 1 35 5
0 1 0 0 0 0 1 0 42 B
Year code
(BCD)
Week code
(BCD)
Preliminary Data Sheet E0148H20 (Ver. 2.0)
7
Page 8
HB54A2568KN-A75B/B75B/10B
Notes: 1. All serial PD data are not protected. 0: Serial data, “driven Low”, 1: Serial data, “driven High” These
SPD are based on JEDEC Committee Ballot JC-42.5-99-129.
2. Byte72 is manufacturing location code. (ex: In case of Japan, byte72 is 4AH. 4AH shows “J” on ASCII
code.)
3. Bytes 95 through 98 are assembly serial number.
4. All bits of 99 through 127 are not defined (“1” or “0”).
5. These specifications are defined based on component specification, not module.
Preliminary Data Sheet E0148H20 (Ver. 2.0)
8
Page 9
Block Diagram
/S1
/S0
DQS0
DM0
DQ0 to DQ7
DQS1
DM1
DQ8 to DQ15
HB54A2568KN-A75B/B75B/10B
R
S
R
S
8
R
S
R
S
R
S
R
8
S
LDQS
LDM
I/O0 to I/O7
UDQS
UDM
I/O8 to I/O15
/S
D0
LDQS
LDM
I/O0 to I/O7
UDQS
UDM
I/O8 to I/O15
/S
D4
DQS4
DM4
DQ32 to DQ39
DQS5
DM5
DQ40 to DQ47
R
S
R
S
8
R
S
R
S
R
S
R
8
S
/S
LDQS
LDM
I/O0 to I/O7
D2
UDQS
UDM
I/O8 to I/O15
/S
LDQS
LDM
I/O0 to I/O7
D6
UDQS
UDM
I/O8 to I/O15
R
DQS2
DM2
DQ16 to DQ23
DQS3
DM3
DQ24 to DQ31
BA0 to BA1
A0 to AN
/RAS
/CAS
/WE
CKE0
CKE1
VCCSPDSPD
VREF
VCC
VSS
VCCID
S
LDQS
R
S
8
8
LDM
R
S
I/O0 to I/O7
R
S
UDQS
R
S
UDM
R
S
I/O8 to I/O15
Open
/S
D1
SDRAMs(D0 to D7)
SDRAMs(D0 to D7)
SDRAMs (D0 to D7)
SDRAMs(D0 to D7)
SDRAMs (D0 to D7)
SDRAMs (D0 to D3)
SDRAMs (D4 to D7)
SDRAMs (D0 to D7)
SDRAMs (D0 to D7),and
SDRAMs (D0 to D7), SPD
LDQS
LDM
I/O0 to I/O7
UDQS
UDM
I/O8 to I/O15
/S
D5
VCCVCCQ
DQS6
DM6
DQ48 to DQ55
DQS7
DM7
DQ56 to DQ63
SCL
SA0
SA1
SA2
R
S
R
S
8
R
S
R
S
R
S
R
8
S
* D0 to D7 : 256M bits DDR SDRAM
Rs : 22
SCL
A0
A1
A2
CK0
/CK0
CK1
/CK1
CK2
/CK2
Notes :
1. DQ wiring may differ from that described
in this drawing; however DQ/DM/DQS
relationships are maintained as shown.
VCCID strap connections:
(for memory device VCC, VCCQ)
Strap out (open): VCC = VCCQ
Strap in (closed): VCC ≠ VCCQ
2. The SDA pull-up registor is reguired due to
the open-drain/open-collector output.
3. The SCL pull-up registor is recommended,
because of the normal SCL lime inactive
"high" state.
/S
LDQS
LDM
I/O0 to I/O7
D3
UDQS
UDM
I/O8 to I/O15
U0 : 2k bits EEPROM
Ω
Serial PD
SDA
U0
WP
4 loads
4 loads
10 pF
/S
LDQS
LDM
I/O0 to I/O7
D7
UDQS
UDM
I/O8 to I/O15
SDA
Preliminary Data Sheet E0148H20 (Ver. 2.0)
9
Page 10
Logical Clock Net Structure
4DRAM loads
HB54A2568KN-A75B/B75B/10B
DRAM1
DIMM
connector
120 Ω
DRAM2
DRAM3
DRAM4
Preliminary Data Sheet E0148H20 (Ver. 2.0)
10
Page 11
HB54A2568KN-A75B/B75B/10B
Pin Functions (1)
CK (CLK), /CK (/CLK) (input pin): The CK and the /CK are the master clock inputs. All inputs except DMs, DQSs
and DQs are referred to the cross point of the CK rising edge and the VREF level. When a read operation, DQSs
and DQs are referred to the cross point of the CK and the /CK. When a write operation, DMs and DQs are referred
to the cross point of the DQS and the VREF level. DQSs for write operation are referred to the cross point of the CK
and the /CK.
/S (/CS) (input pin): When /S is Low, commands and data can be input. When /S is High, all inputs are ignored.
However, internal operations (bank active, burst operations, etc.) are held.
/RAS, /CAS, and /WE (input pins): These pins define operating commands (read, write, etc.) depending on the
combinations of their voltage levels. See "Command operation".
A0 to A12 (input pins): Row address (AX0 to AX12) is determined by the A0 to the A12 level at the cross point of
the CK rising edge and the VREF level in a bank active command cycle. Column address (AY0 to AY8) is loaded via
the A0 to the A8 at the cross point of the CK rising edge and the VREF level in a read or a write command cycle.
This column address becomes the starting address of a burst operation.
A10 (AP) (input pin):
command is issued. If A10 = High when a precharge command is issued, all banks are precharged. If A10 = Low
when a precharge command is issued, only the bank that is selected by BA1, BA0 is precharged. If A10 = High
when read or write command, auto-precharge function is enabled. While A10 = Low, auto-precharge function is
disabled.
BA0, BA1 (input pin): BA0/BA1 are bank select signals. The memory array is divided into bank 0, bank 1, bank 2
and bank 3. If BA1 = Low and BA0 = Low, bank 0 is selected. If BA1 = High and BA0 = Low, bank 1 is selected. If
BA1 = Low and BA0 = High, bank 2 is selected. If BA1 = High and BA0 = High, bank 3 is selected.
CKE (input pin): CKE controls power down and self-refresh. The power down and the self-refresh commands are
entered when the CKE is driven Low and exited when it resumes to High.
The CKE level must be kept for 1 CK cycle (= LCKEPW) at least, that is, if CKE changes at the cross point of the CK
rising edge and the VREF level with proper setup time tIS, at the next CK rising edge CKE level must be kept with
proper hold time tIH.
A10 defines the precharge mode when a precharge command, a read command or a write
Pin Functions (2)
DQ (input and output pins):
DQS (input and output pin): DQS provide the read data strobes (as output) and the write data strobes (as input).
DM (input pins): DM is the reference signal of the data input mask function. DMs are sampled at the cross point of
DQS and VREF
VCC and VCCQ (power supply pins): 2.5V is applied. (VCC is for the internal circuit and VCCQ is for the output
buffer.)
VCCSPD (power supply pin):
VSS (power supply pin): Ground is connected.
Data are input to and output from these pins.
2.5V is applied (For serial EEPROM).
Detailed Operation Part, AC Characteristics and Timing Waveforms
Refer to the HM5425161B/HM5425801B/HM5425401B Series datasheet (E0086H).
Preliminary Data Sheet E0148H20 (Ver. 2.0)
11
Page 12
HB54A2568KN-A75B/B75B/10B
Electrical Specifications
Absolute Maximum Ratings
Parameter Symbol Value Unit Note
Voltage on any pin relative to VSS VT –1.0 to +4.6 V 1
Supply voltage relative to VSS VCC, VCCQ –1.0 to +4.6 V 1
Short circuit output current IOUT 50 mA
Power dissipation PT 8 W
Operating temperature Topr 0 to +65 °C
Storage temperature Tstg –50 to +100 °C
Notes: 1. Respect to VSS.
DC Operating Conditions (TA = 0 to +65°C)
Parameter Symbol min. Typ max. Unit Notes
Supply voltage VCC, VCCQ 2.3 2.5 2.7 V 1, 2
VSS 0 0 0 V
Input reference voltage VREF 1.15 1.25 1.35 V 1
Termination voltage VTT VREF – 0.04 VREF VREF + 0.04 V 1
DC Input high voltage VIH VREF + 0.18 — VCCQ + 0.3 V 1, 3
DC Input low voltage VIL –0.3 — VREF – 0.18 V 1, 4
DC Input signal voltage VIN (dc) –0.3 — VCCQ + 0.3 V 5
DC differential input voltage VSWING (dc) 0.36 — VCCQ + 0.6 V 6
Notes: 1. All parameters are referred to VSS, when measured.
2. VCCQ must be lower than or equal to VCC.
3. VIH is allowed to exceed VCC up to 4.6V for the period shorter than or equal to 5ns.
4. VIL is allowed to outreach below VSS down to –1.0V for the period shorter than or equal to 5ns.
5. VIN (dc) specifies the allowable dc execution of each differential input.
6. VSWING (dc) specifies the input differential voltage required for switching.
Preliminary Data Sheet E0148H20 (Ver. 2.0)
12
Page 13
HB54A2568KN-A75B/B75B/10B
DC Characteristics 1 (TA = 0 to 65°C, VCC, VCCQ = 2.5V ± 0.2V, VSS = 0V)
Parameter Symbol Grade max. Unit Test condition Notes
Operating current (ACTV-PRE) ICC0
Operating current (ACTV-READ-PRE) ICC1
Idle power down standby current ICC2P
Idle standby current ICC2N
Active power down standby current ICC3P
Active standby current ICC3N
Operating current
(Burst read operation)
Operating current
(Burst write operation)
Auto refresh current ICC5
Self refresh current ICC6 24 mA
ICC4R
ICC4W
-A75B
-B75B
-10B
-A75B
-B75B
-10B
-A75B
-B75B
-10B
-A75B
-B75B
-10B
-A75B
-B75B
-10B
-A75B
-B75B
-10B
-A75B
-B75B
-10B
-A75B
-B75B
-10B
-A75B
-B75B
-10B
Notes. 1. These ICC data are measured under condition that DQ pins are not connected.
2. One bank operation.
3. One bank active.
4. All banks idle.
5. Command/Address transition once per one cycle.
6. Data/Data mask transition twice per one cycle.
7. The ICC data on this table are measured with regard to tCK = min. in general.
600
560
480
820
760
680
144
120
96
320
280
240
200
160
120
400
360
320
1220
1160
1100
1160
1100
1040
1020
980
880
mA CKE ≥ VIH, tRC = min. 1, 2, 5
mA
mA CKE ≤ VIL 4
mA CKE ≥ VIH, /CS ≥ VIH 4
mA CKE ≤ VIL 3
mA
mA
mA
mA
CKE ≥ VIH, BL = 2,
CL = 2.5, tRC = min.
CKE ≥ VIH, /CS ≥ VIH
tRAS = max.
CKE ≥ VIH, BL = 2,
CL = 2.5
CKE ≥ VIH, BL = 2,
CL = 2.5
tRFC = min.,
Input ≤ VIL or ≥ VIH
Input ≥ VCC – 0.2V
Input ≤ 0.2V.
1, 2, 5
3
1, 2, 5, 6
1, 2, 5, 6
DC Characteristics 2 (TA = 0 to 65°C, VCC, VCCQ = 2.5V ± 0.2V, VSS = 0V)
Parameter Symbol min. max. Unit Test condition Notes
Input leakage current ILI –10 10 µA VCC ≥ VIN ≥ VSS
Read to pre-charge command delay (same bank) tRPD BL/2
Write to read command delay (to input all data) tWRD 2 + BL/2
Burst stop command to write command delay
(CL = 2)
(CL = 2.5) tBSTW 3
Burst stop command to DQ High-Z
(CL = 2)
(CL = 2.5) tBSTZ 2.5
Read command to write command delay (to output all data)
(CL = 2)
(CL = 2.5) tRWD 3 + BL/2
Pre-charge command to High-Z
(CL = 2)
(CL = 2.5) tHZP 2.5
Write command to data in latency tWCD 1
Write recovery tWR 2
DM to data in latency tDMD 0
Register set command to active or register set command tMRD 2
Self refresh exit to non-read command tSNR 10
Self refresh exit to read command tSRD 200
Power down entry tPDEN 1
Power down exit to command input tPDEX 1
CKE minimum pulse width tCKEPW 1
Address, /RAS, /CAS,
/WE
60 pF 1
tBSTW 2
tBSTZ 2
tRWD 2 + BL/2
tHZP 2
Preliminary Data Sheet E0148H20 (Ver. 2.0)
14
Page 15
Physical Outline
31.75
11.55
67.60
63.60
18.45
(DATUM -A-)
Component area
(Front)
HB54A2568KN-A75B/B75B/10B
Unit: mm
3.80
4x Full R
2.15
2.45
R0.50 ± 0.20
6.00
12
Detail A
11.40
11.40
AB
4.20
Component area
(Back)
(DATUM -A-)
(DATUM -A-)
4.20
1.50
FULL R
47.40
47.40
Detail B
199
2.45
2.15
200
2x φ 1.80
4.00 ± 0.10
2.00 Min.
20.0
1.00 ± 0.10
R0.50 ± 0.20
4.00
4.00 ± 0.10
1.80
2.55
0.60
0.45 ± 0.03
0.25 Max
1.00 ± 0.10
ECA-TS2-0019-01
Preliminary Data Sheet E0148H20 (Ver. 2.0)
15
Page 16
HB54A2568KN-A75B/B75B/10B
CAUTION FOR HANDLING MEMORY MODULES
When handling or inserting memory modules, be sure not to touch any components on the modules, such as
the memory ICs, chip capacitors and chip resistors. It is necessary to avoid undue mechanical stress on
these components to prevent damaging them.
In particular, do not push module cover or drop the modules in order to protect from mechanical defects,
which would be electrical defects.
When re-packing memory modules, be sure the modules are not touching each other.
Modules in contact with other modules may cause excessive mechanical stress, which may damage the
modules.
NOTES FOR CMOS DEVICES
1PRECAUTION AGAINST ESD FOR MOS DEVICES
Exposing the MOS devices to a strong electric field can cause destruction of the gate
oxide and ultimately degrade the MOS devices operation. Steps must be taken to stop
generation of static electricity as much as possible, and quickly dissipate it, when once
it has occurred. Environmental control must be adequate. When it is dry, humidifier
should be used. It is recommended to avoid using insulators that easily build static
electricity. MOS devices must be stored and transported in an anti-static container,
static shielding bag or conductive material. All test and measurement tools including
work bench and floor should be grounded. The operator should be grounded using
wrist strap. MOS devices must not be touched with bare hands. Similar precautions
need to be taken for PW boards with semiconductor MOS devices on it.
2HANDLING OF UNUSED INPUT PINS FOR CMOS DEVICES
No connection for CMOS devices input pins can be a cause of malfunction. If no
connection is provided to the input pins, it is possible that an internal input level may be
generated due to noise, etc., hence causing malfunction. CMOS devices behave
differently than Bipolar or NMOS devices. Input levels of CMOS devices must be fixed
high or low by using a pull-up or pull-down circuitry. Each unused pin should be connected
to V
DD
or GND with a resistor, if it is considered to have a possibility of being an output
pin. The unused pins must be handled in accordance with the related specifications.
MDE0202
3STATUS BEFORE INITIALIZATION OF MOS DEVICES
Power-on does not necessarily define initial status of MOS devices. Production process
of MOS does not define the initial operation status of the device. Immediately after the
power source is turned ON, the MOS devices with reset function have not yet been
initialized. Hence, power-on does not guarantee output pin levels, I/O settings or
contents of registers. MOS devices are not initialized until the reset signal is received.
Reset operation must be executed immediately after power-on for MOS devices having
reset function.
CME0107
Preliminary Data Sheet E0148H20 (Ver. 2.0)
16
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