NT256D64S8HA0G-6
256MB : 32M x 64
PC2700 Unbuffered DIMM
Preliminary, 11/2001
11
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Serial Presence Detect
SPD Entry Value
Serial PD Data Entry
(Hexadecimal)
Byte
Description
-6
-6
Note
0
Number of Serial PD Bytes Written during Production
128
80
1
Total Number of Bytes in Serial PD device
256
08
2
Fundamental Memory Type
SDRAM DDR
07
3
Number of Row Addresses on Assembly
12
0C
4
Number of Column Addresses on Assembly
10
0A
5
Number of DIMM Bank
2
02
6.
Data Width of Assembly
X64
40
7
Data Width of Assembly (cont’)
X64
00
8
Voltage Interface Level of this Assembly
SSTL 2.5V
04
9
SDRAM Device Cycle Time at CL=2.5
6ns
60
10
SDRAM Device Access Time from Clock at CL=2.5
0.7ns
70
11
DIMM Configuration Type
Non-Parity
00
12
Refresh Rate/Type
15.6µs / SR
80
13
Primary SDRAM Width
X8
08
14
Error Checking SDRAM Device Width
N/A
00
15
SDRAM Device Attributes :
Minimum Clock Delay, Random Column Access
1 Clock
01
16
SDRAM Device Attributes: Burst Length Supported
2,4,8
0E
17
SDRAM Device Attributes: Number of Device Banks
4
04
18
SDRAM Device Attributes: CAS Latency
2, 2.5
0C
19
SDRAM Device Attributes: CS Latency
0
01
20
SDRAM Device Attributes: WE Latency
1
02
21
SDRAM Module Attributes
Differential Clock
20
22
SDRAM Device Attributes: General
+/-0.2V Voltage Tolerance
00
23
Minimum Clock Cycle at CL=2
7.5ns
75
24
Maximum Data Access Time from Clock at CL=2
± 0.7ns
70
25
Minimum Clock Cycle Time at CL=1
N/A
00
26
Maximum Data Access Time from Clock at CL=1
N/A
00
27
Minimum Row Precharge Time (tRP)
18ns
48
28
Minimum Row Active to Row Active delay (tRRD)
12ns
30
29
Minimum RAS to CAS delay (tRCD)
18ns
48
30
Minimum RAS Pulse Width (tRAS)
42ns
2A
31
Module Bank Density
128MB
20
32
Address and Command Setup Time Before Clock
0.75ns
75
33
Address and Command Hold Time After Clock
0.75ns
75
34
Data Input Setup Time Before Clock
0.45ns
45
35
Data Input Hold Time After Clock
0.45ns
45
36-61
Reserved
Undefined
00
62
SPD Revision
0
00
63
Checksum Data
E8
64-71
Manufacturer’s JEDED ID Code
NANYA
7F7F7F0B00000000
72
Module Manufacturing Location
N/A
00
73-90
Module Part number
N/A
N/A
N/A
00
00
00
91-92
Module Revision Code
N/A
00
93-94
Module Manufacturing Data
Year / Week Code
yy/ww
1,2
95-98
Module Serial Number
Serial Number
00
99-255
Reserved
Undefined
00
1.
yy= Binary coded decimal year code, 0-99(Decimal), 00-63(Hex)
2.
ww= Binary coded decimal year code, 01-52(Decimal), 01-34(Hex)
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