V437464C24VXTG-75 データシートの表示（PDF） - Mosel Vitelic Corporation

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V437464C24VXTG-75

3.3 VOLT 64M x 72 HIGH PERFORMANCE PC133 REGISTERED PLL ECC SDRAM MODULE

Mosel Vitelic Corporation  

MOSEL VITELIC

V437464C24V

3.3 VOLT 64M x 72 HIGH PERFORMANCE

PC133 REGISTERED PLL ECC SDRAM

MODULE

PRELIMINARY

Features

s 168 Pin Registered ECC 67,108,864 x 72 bit

Oganization SDRAM Modules

s Utilizes High Performance 64M x 4 SDRAM in

TSOPII-54 Packages

s Fully PC Board Layout Compatible to INTEL’S

Rev 1.2 Module Specification

s Single +3.3V (± 0.3V) Power Supply

s Programmable CAS Latency, Burst Length, and

Wrap Sequence (Sequential & Interleave)

s Auto Refresh (CBR) and Self Refresh

s All Inputs, Outputs are LVTTL Compatible

s 8192 Refresh Cycles every 64 ms

s Serial Present Detect (SPD)

s SDRAM Performance

Description

The V437464C24V memory module is organized

67,108,864 x 72 bits in a 168 pin dual in line

memory module (DIMM). The 64M x 72 registered

DIMM uses 18 Mosel-Vitelic 64M x 4 ECC SDRAM.

The x72 registered modules are ideal for use in high

performance computer systems where increased

memory density and fast access times are required.

Key Component Timing Parameters

-7PC

-7

-8PC

Units

tCK

Clock Frequency (max.)

tAC

Clock Access Time CAS Latency = 3

tAC

Clock Access Time CAS Latency = 2

143

143

125

MHz

5.4

5.4

6

ns

5.4

6

6

ns

s Module Frequency vs AC Parameter

Frequency

CL

(CAS Latency)

tRCD

tRP

V437464C24V

2

133 MHz (PC)

2

2

V437464C24V

3

133 MHz

3

3

V437464C24V

2

100 MHz (PC)

2

2

tRC

Unit

8

CLK

8

CLK

7

CLK

V437464C24V Rev.1.0 January 2002

1

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