HB54A2569F1 Datasheet, PDF (4/17 Pages) Elpida Memory – 256MB, 512MB Registered DDR SDRAM DIMM

HB54A2569F1, HB54A5129F2
Pin Description
Pin name
A0 to A12
BA0, BA1
DQ0 to DQ63
CB0 to CB7
/RAS
/CAS
/WE
E/S0, /S1
CKE0, CKE1
CK0
/CK0
O_{DQS0 to DQS8}
DM0 to DM8/DQS9 to DQS17
SCL
L ^SDA
SA0 to SA2
VCC
VCCQ
VCCSPD
VREF
VSS
VCCID
/RESET
NC
Function
Address input
Row address
Column address
A0 to A12
A0 to A9
Bank select address
Data input/output
Check bit (Data input/output)
Row address strobe command
Column address strobe command
Write enable
Chip select
Clock enable
Clock input
Differential clock input
Input and output data strobe
Input mask
Clock input for serial PD
Data input/output for serial PD
Serial address input
Power for internal circuit
Power for DQ circuit
Power for serial EEPROM
PInput reference voltage
Ground
VCC identification flag
Reset pin (forces register inputs low)
roduct _{No connection}
Data Sheet E0091H40 (Ver. 4.0)
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