Datasheet
T
T
T
S
S
S
3
3
3
2
2
2
M
M
M
S
S
S
S
S
S
6
6
6
4
4
4
V
V
V
8
8
8
D
D
D
2
2
2
144PIN PC100 Unbuffered SO-DIMM
256MB With 16Mx8 CL2
Description
The TS32MSS64V8D2 is a 32M bit x 64 Synchronous
Dynamic RAM high-density memory modules. The
TS32MSS64V8D2 consists of 16 pieces of CMOS
4Mx8bitsx4banks Synchronous DRAMs in TSOP-II 400mil
packages, a 2048 bits serial EEPROM and a PLL on a
144-pin printed circuit board. The TS32MSS64V8D2 is a
Dual In-Line Memory Module and is intended for mounting
into 144-pin edge connector sockets.
Synchronous design allows precise cycle control with the
use of system clock. I/O transactions are possible on every
clock cycle. Range of operation frequencies, programmable
latencies allow the same device to be useful for a variety of
high bandwidth, high performance memory system
applications.
Features
• Burst Mode Operation.
• Auto and Self Refresh.
• Serial Presence Detect (SPD) with serial EEPROM
• LVTTL compatible inputs and outputs.
• Single 3.3V ± 0.3V power supply.
• MRS cycle with address key programs.
Latency (Access from column address)
Burst Length (1,2,4,8 & Full Page)
Data Scramble (Sequential & Interleave)
• All inputs are sampled at the positive going edge of the
system clock.
Pin Identification
Symbol Function
A0~A11 Address inputs
BA0, BA1 Banks Select
D0~D63 Data inputs/outputs
CLK0 Clock Input
CKE0, CKE1 Clock Enable Input
/CS0, /CS1 Chip Select Input
/RAS Row address strobe
/CAS Column address strobe
/WE Write Enable
DQM0~DQM7 DQM
Vcc Power Supply
Vss Ground
SDA Serial Address / Data I/O
SCL Serial Clock
NC No Connection
Dimensions
Side Millimeters Inches
A 67.60 ± 0.20 2.661 ± 0.008
B 32.80 1.291
C 23.20 0.913
D 4.60 0.181
E 3.30 0.130
F 4.00 0.157
G 20.00 0.787
H 50.50 ± 0.20 1.988 ± 0.008
I 1.00 ± 0.10 0.040 ± 0.004
Transcend information Inc.
1