Transcend Memory JetRam 256MB soDIMM DDR2 JM435Q644A-5 用户手册

 

 

Transcend Information Inc.

 

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The JM435Q644A-5 is a 32M x 64bits DDR2-533 

SO-DIMM. The JM435Q644A-5 consists of 4pcs 

32Mx16its DDR2 SDRAMs in 84 ball FBGA packages 

and a 2048 bits serial EEPROM on a 200-pin printed 

circuit board. The JM435Q644A-5 is a Dual In-Line 

Memory Module and is intended for mounting into 200-pin 

edge connector sockets. 

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Synchronous design allows precise cycle control with the 

use of system clock. Data I/O transactions are possible 

on both edges of DQS. Range of operation frequencies, 

programmable latencies allow the same device to be 

useful for a variety of high bandwidth, high performance 

memory system applications. 

•  RoHS compliant products. 

•  JEDEC standard 1.8V ± 0.1V Power supply   

•  VDDQ=1.8V ± 0.1V 
•  Max clock Freq: 267MHZ; 533Mb/s/Pin. 
•  Posted CAS   
•  Programmable CAS Latency: 3,4,5 
•  Programmable Additive Latency :0, 1,2,3 and 4 
•  Write Latency (WL) = Read Latency (RL)-1 
•  Burst Length: 4,8(Interleave/nibble sequential) 
•  Programmable sequential / Interleave Burst Mode 
•  Bi-directional Differential Data-Strobe (Single-ended   

 

     

data-strobe is an optional feature)         

•  Off-Chip Driver (OCD) Impedance Adjustment 
•  MRS cycle with address key programs. 
•  On Die Termination 
•  Serial presence detect with EEPROM