Datasheet

T
T
T
S
S
S
6
6
6
4
4
4
M
M
M
S
S
S
S
S
S
6
6
6
4
4
4
V
V
V
6
6
6
L
L
L
144PIN PC133 Unbuffered SO-DIMM
512MB With 32M X 8 CL3
Serial Presence Detect Specification
Serial Presence Detect
Byte No. Function Described
Standard
Specification
Vendor Part
0 Number of Bytes Written into Serial Memory 128bytes
80
1 Total Number of Bytes of S.P.D Memory 256bytes
08
2 Fundamental Memory Type SDRAM
04
3 Number of Row Addresses on this Assembly 13
0D
4 Number of Column Addresses on this Assembly 10
0A
5 Number of Module Banks on this Assembly 2 bank
02
6 Data Width of this Assembly 64bits
40
7 Data Width Continuation -
00
8 Voltage Interface Standard of this Assembly LVTTL3.3V
01
9 SDRAM Cycle Time (highest CAS latency) 7.5ns
75
10 SDRAM Access from Clock (highest CL) 5.4ns
54
11 DIMM configuration type (non-parity, ECC) Non parity
00
12 Refresh Rate Type 7.8us/Self Refresh
82
13 Primary SDRAM Width X8
08
14 Error Checking SDRAM Width None
00
15 Min Clock Delay Back to Back Random Address 1 clock
01
16 Burst Lengths Supported 1,2,4,8
0F
17 Number of banks on each SDRAM device 4 bank
04
18 CAS Latency 2 & 3
06
19 CS Latency 0 clock
01
20 Write Latency 0 clock
01
21 SDRAM Module Attributes Non Buffer
00
22 SDRAM Device Attributes: General
Prec All, Auto Prec,
R/W Burst
0E
23 SDRAM Cycle Time (2
nd
highest CL) 10ns
A0
24 SDRAM Access from Clock (2
nd
highest CL) 6ns
60
25 SDRAM Cycle Time (3
rd
highest CL) -
00
26 SDRAM Access from Clock (3
rd
highest CL) -
00
27 Minimum Row Precharge Time 20
14
28 Minimum Row Active to Row Activate 15ns
0F
29 Minimum RAS to CAS Delay 20
14
30 Minimum RAS Pulse Width 45ns
2D
Transcend information Inc.
9