Datasheet

T
T
T
S
S
S
6
6
6
4
4
4
M
M
M
Q
Q
Q
R
R
R
7
7
7
2
2
2
V
V
V
4
4
4
J
J
J
240PIN DDR2 400 Registered DIMM
512MB With 64Mx8 CL3
Transcend Information Inc.
2
Dimensions
Side Millimeters Inches
A 133.35±0.15 5.250±0.006
B 55 2.165
C 63 2.480000
D 5 0.197
E 2.5 0.0980
F 1.5±0.10 0.059±0.039
G 5.175 0.204
H 2.2 0.867
I 4 0.157
J 10 0.394
K 17.8 0.701
L 30±0.15 1.181±0.006
M 1.27±0.10 0.050±0.004
(Refer Placement)
Pin Description
Symbol Function
A0~A13, BA0, BA1 Address input, bank address
DQ0~DQ63 Data Input / Output.
CB0~CB7 Data Check Bits Input/Output
DQS0~DQS8 Data strobe
/DQS0~/DQS8 Data strobe , negative line
CK0, /CK0 Clock Input.
CKE0, CKE1 Clock Enable Input.
ODT0, ODT1 On-die termination control line
/CS0, /CS1 Chip Select Input.
/RAS Row Address Strobe
/CAS Column Address Strobe
/WE Write Enable
DM0~DM8 Data-in Mask
/DQS9~/DQS17 Data strobes(Read),negative line
VDD +1.8 Voltage power supply
VDDQ +1.8 Voltage Power Supply for DQS
VREF Power Supply for Reference
VDDSPD
Serial EEPROM Positive Power
Supply
SA0~SA2 Address select for EEPROM
SCL Serial PD Clock
SDA Serial PD Add/Data input/output
VSS Ground
/RESET Register and PLL control pin
/Err_Out Parity error found in the bus
Par_In Parity bit for address and control bus
NC No Connection