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256MB 168PIN PC133 CL3

SDRAM DIMM With 32M X 8 3.3VOLT

Description

The JM334S643A-75 is a 32M x 64bits Synchronous

Dynamic RAM high-density for PC-133. The

JM334S643A-75 consists of 8pcs CMOS 32Mx8 bits

Synchronous DRAMs in TSOP-II 400mil packages and

a 2048 bits serial EEPROM on a 168-pin printed circuit

board. The JM334S643A-75 is a Dual In-Line Memory

Module and is intended for mounting into 168-pin edge

connector sockets.

Synchronous design allows precise cycle control with

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

on every clock cycle. 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

• Performance Range: PC-133

• Conformed to JEDEC Standard 4 clocks.

• Burst Mode Operation.

• Auto and Self Refresh.

• CKE Power Down Mode.

• DQM Byte Masking (Read/Write)

• Serial Presence Detect (SPD) with serial EEPROM

• LVTTL compatible inputs and outputs.

• Single 3.3V ± 0.3V power supply.

• MRS cycle with address key programs.

Latency (Access from column address)

Burst Length (1,2,4,8 & Full Page)

Data Sequence (Sequential & Interleave)

• All inputs are sampled at the positive going edge of

the system clock.

Placement

PCB: 09-7303

Transcend information Inc. 1

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Inhaltsverzeichnis

Seite 1

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT Description The JM334S643A-75 is a 32M x 64bits Synchro

Seite 2

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT Serial Presence Detect Specification Serial Presence D

Seite 3

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT 93-94 Manufacturing Date - 00 95-98 Assembly Serial

Seite 4 - 4

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT Dimensions Side Millimeters Inches A 133.35±0.40

Seite 5 - LI -10 - 10 uA 3

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT Pinouts: Pin No Pin Name Pin No Pin NamePin No Pin Na

Seite 6 - DC CHARACTERISTICS

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT JM334S643A-75-- Block Diagram A0~A12,BA0,BA1DQ0~DQ7/RAS

Seite 7

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT ABSOLUTE MAXIMUM RATINGS Parameter Symbol Value Unit

Seite 8

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT DC CHARACTERISTICS (Recommended operating condition unl

Seite 9 - SIMPLIFIED TRUTH TABLE

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT AC OPERATING TEST CONDITIONS (VDD = 3.3V±0.3V, TA = 0 t

Seite 10 - 256MB 168PIN PC133 CL3

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT AC CHARACTERISTICS (AC operating conditions unless othe

Seite 11

JJJMMM333333444SSS666444333AAA---777555 256MB 168PIN PC133 CL3SDRAM DIMM With 32M X 8 3.3VOLT SIMPLIFIED TRUTH TABLE COMMAND CKEn-1 CKEn /CS /RAS /

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