nt256t64uh4a1fy Nanya Techology, nt256t64uh4a1fy Datasheet - Page 7

• Manufacturer Part Number: nt256t64uh4a1fy
• Description: 240pin Unbuffered Ddr2 Sdram Module
• Manufacturer: Nanya Techology

NT256T64UH4A1FY
256MB: 32M x 64
Unbuffered DDR2 SDRAM DIMM
Serial Presence Detect --
32Mx64 1 BANK UNBUFFERED DDR2 SDRAM DIMM based on 32Mx16, 4Banks, 8K Refresh, 1.8V DDR2 SDRAMs with SPD
REV 1.3
08/2006
Note:
1. NT256T64UH4A1FY-3C
92-255 Reserved
64-71 Manufacturer’s JEDEC ID Code
73-91 Module Part number
Byte
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
72
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
Tcasemax
Thermal Resistance of DRAM Package from Top (Case) to
Ambient (Psi T-A DRAM)
DRAM Case Temperature Rise from Ambient due to
Activate-Precharge/Mode Bits (DT0/Mode Bits)
DRAM Case Temperature Rise from Ambient due to
Precharge/Quiet Standby (DT2N/DT2Q)
DRAM Case Temperature Rise from Ambient due to
precharge Power-Down (DT2P)
DRAM Case Temperature Rise from Ambient due to Active
Standby (DT3N)
DRAM Case Temperature Rise from Ambient due to Active
Power-Down with Fast PDN Exit (DT3P fast)
DRAM Case Temperature Rise from Ambient due to Active
Power-Down with Slow PDN Exit (DT3P slow)
DRAM Case Temperature Rise from Ambient due to Page
Open Burst Read/DT4R4W Mode Bit (DT4R/DT4R4W Mode
Bit)
DRAM Case Temperature Rise from Ambient due to Burst
Refresh (DT5B)
DRAM Case Temperature Rise from Ambient due to Bank
Interleave Reads with Auto-Precharge (DT7)
Thermal Resistance of PLL Package from Top (Case) to
Ambient (Psi T-A PLL)
Thermal Resistance of Register Package from Top (Case) to
Ambient (Psi T-A Register)
PLL Case Temperature Rise from Ambient due to PLL Active
(DT PLL Active)
Resister Case Temperature Rise from Ambient due to
Register Active/Mode Bit(DT Register Active/Mode Bit)
SPD Revision
Checksum Data
Module Manufacturing Location
4E54323536543634554834413146592D334320
Description
Part 2 of 2
7
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Module Part Number in
Manufacturing code
SPD Entry Value
Checksum Data
DDR2-667
Undefined
118˚C/W
NANYA
0.24ns
0.34ns
105ns
ASCII
(-3C)
60ns
36˚C
56˚C
37˚C
37˚C
43˚C
27˚C
42˚C
36˚C
54˚C
N/A
8ns
6˚C
1.2
00
00
00
00
Serial PD Data Entry
7F7F7F0B00000000
(Hexadecimal)
DDR2-667
© NANYA TECHNOLOGY CORP.
(-3C)
3C
6B
2B
1B
EE
69
80
18
22
00
55
76
38
25
25
54
24
36
00
00
00
00
12
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Note
1