nt1gt72u89d0by Nanya Techology, nt1gt72u89d0by Datasheet - Page 10

• Manufacturer Part Number: nt1gt72u89d0by
• Description: 240pin Unbuffered Ddr2 Sdram Module With Ecc Based On 128mx8 Ddr2 Sdram D-die
• Manufacturer: Nanya Techology

NT1GT72U89D0BY / NT2GT72U8PD0BY
1GB: 128M x 72 / 2GB: 256M x 72
Unbuffered DDR2 SDRAM DIMM with ECC
Serial Presence Detect --
256Mx72 2 RANKs UNBUFFERED DDR2 SDRAM DIMM based on 128Mx8, 8Banks, 8K Refresh, 1.8V DDR2 SDRAMs with SPD
REV 1.0
03/2008
Note 1:
92-255 Reserved
46-61 Reserved
64-71 Manufacture’s JEDEC ID Code
73-91 Module Part number
Byte
40
41
42
43
44
45
46
62
63
72
Extension of Byte 41 tRC and Byte 42 tRFC
Minimum Core Cycle Time (tRC)
Min. Auto Refresh Command Cycle Time (tRFC)
Maximum Clock Cycle Time (tCK)
Max. DQS-DQ Skew Factor (tQHS)
Read Data Hold Skew Factor (tQHS)
PLL Relock Time
SPD Revision
Checksum for bytes 0-62
Module Manufacturing Location
NT2GT72U8PD0BY-3C  4E543247543732553850443042592D33432020
NT2GT72U8PD0BY-AD  4E543247543732553850443042592D41442020
NT2GT72U8PD0BY-AC  4E543247543732553850443042592D41432020
Description
Part 2 of 2 (2GB)
10
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
The number below a
decimal point of tRC and
tRFC are 0, tRFC is less
than 256ns.
0.24ns
0.34ns
Module Part Number in
667
-3C
Manufacturing Code
SPD Entry Value
Checksum Data
60.0ns
Undefined
Undefined
Undefined
127.5ns
NANYA
ASCII
8.0ns
1.3
800
-AD
0.20ns
0.30ns
57.5ns
-AC
800
667
-3C
Serial PD Data Entry
2A
7F7F7F0B00000000
18
22
(Hexadecimal)
3C
06
© NANYA TECHNOLOGY CORP.
-AD
800
F4
7F
80
00
00
13
--
--
--
1E
14
-AC
800
36
39
10
Note
1