|
MT4HTF1664AY Datasheet, PDF (1/19 Pages) Micron Technology – DDR2 SDRAM UDIMM | |||
|
128MB, 256MB, 512MB (x64, SR) 240-Pin DDR2 SDRAM UDIMM
Features
DDR2 SDRAM UDIMM
MT4HTF1664AY â 128MB
MT4HTF3264AY â 256MB
MT4HTF6464AY â 512MB
Features
⢠240-pin, unbuffered dual in-line memory module
(UDIMM)
⢠Fast data transfer rates: PC2-3200, PC2-4200,
PC2-5300, or PC2-6400
⢠128MB (16 Meg x 64), 256MB (32 Meg x 64),
512MB (64 Meg x 64)
⢠VDD = VDDQ = 1.8V
⢠VDDSPD = 1.7â3.6V
⢠JEDEC-standard 1.8V I/O (SSTL_18-compatible)
⢠Differential data strobe (DQS, DQS#) option
⢠4n-bit prefetch architecture
⢠Multiple internal device banks for concurrent
operation
⢠Programmable CAS latency (CL)
⢠Posted CAS additive latency (AL)
⢠WRITE latency = READ latency - 1 tCK
⢠Programmable burst lengths (BL): 4 or 8
⢠Adjustable data-output drive strength
⢠64ms, 8192-cycle refresh
⢠On-die termination (ODT)
⢠Serial presence detect (SPD) with EEPROM
⢠Gold edge contacts
⢠Single rank
Figure 1: 240-Pin UDIMM (MO-237 R/C C)
Module height 30.0mm (1.18in)
Options
⢠Operating temperature
â Commercial (0°C ⤠TA ⤠+70°C)
â Industrial (â40°C ⤠TA ⤠+85°C)1
⢠Package
â 240-pin DIMM (lead-free)
⢠Frequency/CL2
â 2.5ns @ CL = 5 (DDR2-800)4
â 2.5ns @ CL = 6 (DDR2-800)4
â 3.0ns @ CL = 5 (DDR2-667)
â 3.75ns @ CL = 4 (DDR2-533)3
â 5.0ns @ CL = 3 (DDR2-400)3
Marking
None
I
Y
-80E
-800
-667
-53E
-40E
Notes:
1. Contact Micron for industrial temperature
module offerings.
2. CL = CAS (READ) latency.
3. Contact Micron for product availability.
4. Not available in 128MB and 256MB.
Table 1: Key Timing Parameters
Speed
Industry
Data Rate (MT/s)
tRCD
tRP
tRC
Grade
Nomenclature
CL = 6
CL = 5
CL = 4
CL = 3
(ns)
(ns)
(ns)
-80E
PC2-6400
800
800
533
400
12.5
12.5
55
-800
PC2-6400
800
667
533
400
15
15
55
-667
PC2-5300
â
667
553
400
15
15
55
-53E
PC2-4200
â
â
553
400
15
15
55
-40E
PC2-3200
â
â
400
400
15
15
55
PDF: 09005aef80ed6fda
htf4c16_32_64x64ay â Rev. H 3/10 EN
1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2003 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.
|
▷ |