Transcend JetRam 4GB Manual download pdf

240PIN DDR2 667 Unbuffered DIMM 0.72”

4GB Kit With 128Mx8 CL5

Transcend Information Inc.

Description • Placement

The JM4GDDR2-6K consists of 2pcs 2GB DDR2 SDRAM

module. The 2GB module is a 256M x 64bits DDR2-667

Unbuffered DIMM. The 2GB module consists of 16pcs

128Mx8bits DDR2 SDRAMs in 60 ball FBGA packages

and a 2048 bits serial EEPROM on a 240-pin printed

circuit board. The 2GB module is a Dual In-Line Memory

Module and is intended for mounting into 240-pin edge

connector sockets.

K M

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.

Features

• RoHS compliant products.

• JEDEC standard 1.8V ± 0.1V Power supply

• VDDQ=1.8V ± 0.1V

• Max clock Freq: 333MHZ; 667Mb/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)

PCB: 09-2980

• 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

• Refresh: Auto Refresh and Self Refresh

Average Refresh Period:

7.8us at lower then T 85°C

CASE

1 2 3

Summary of Contents

Page 1

JJJMMM444GGGDDDDDDRRR222---666KKK 240PIN DDR2 667 Unbuffered DIMM 0.72”4GB Kit With 128Mx8 CL5 Transcend Information Inc. 1Description • Placement

Page 2

JJJMMM444GGGDDDDDDRRR222---666KKK 240PIN DDR2 667 Unbuffered DIMM 0.72”4GB Kit With 128Mx8 CL5 Transcend Information Inc. 2Dimensions Side Millimete

Page 3 - Pinouts:

JJJMMM444GGGDDDDDDRRR222---666KKK 240PIN DDR2 667 Unbuffered DIMM 0.72”4GB Kit With 128Mx8 CL5 Transcend Information Inc. 3Pinouts: Pin No Pin Name

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Transcend JetRam 4GB Manual

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