Datasheet > IBM13T8644MPE-360T

IBM13T8644MPE-360T

更新时间： 2024-10-28 23:57:39

品牌	Logo	应用领域
其他 - ETC		动态存储器
页数	文件大小	规格书
17页	290K
描述
x64 SDRAM Module

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中文翻译

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数据手册

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IBM13T8644MPE-360T 数据手册

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Discontinued (4/1/00 last order; 7/31/00 - last ship)

IBM13T8644MPE

Preliminary

Features

• 144 Pin JEDEC Standard, 8 Byte Small Outline

Dual-In-line Memory Module

8M x 64 PC100 SDRAM SO DIMM

• Programmable Operation:

- CAS Latency: 2, 3

• 8Mx64 Synchronous DRAM SO DIMM

• Performance: PC100

- Burst Type: Sequential or Interleave

- Burst Length: 1, 2, 4, 8, Full-Page (Full-

Page supports Sequential burst only)

- Operation: Burst Read and Write or Multiple

Burst Read with Single Write

-360

Units

CAS Latency

Clock Frequency

Clock Cycle

100

MHz

• Auto Refresh (CBR) and Self Refresh

• Automatic and controlled Precharge Commands

• Suspend Mode and Power Down Mode

• 12/8/2 Addressing (Row/Column/Bank)

• 4096 refresh cycles distributed across 64ms

• Serial Presence Detect

Clock Access Time

• Inputs and outputs are LVTTL (3.3V) compatible

• 10 Ohm Resistors on DQ’s

• Single 3.3V ± 0.3V Power Supply

• Single Pulsed RAS interface

• SDRAMs have 4 internal banks

• Card size: 2.66" x 1.25" x 0.149"

• Gold contacts

• Fully Synchronous to positive Clock Edge

• Data Mask for Byte Read/Write control

• SDRAMS in TSOP Type II Package

Description

IBM13T8644MPE is a 144-pin Synchronous DRAM

Small Outline Dual In-line Memory Module (SO -

DIMM) which is organized as a 8Mx64 high-speed

memory array. The SO DIMM uses eight 4Mx16

SDRAMs in 400mil TSOP II packages. The SO -

DIMM achieves high speed data transfer rates of up

to 100MHz by employing a prefetch/pipeline hybrid

architecture that supports the JEDEC 1N rule while

allowing very low burst power.

RAS, CAS, WE, S0, S1, DQMB, and CKE0, CKE1,

signals. A command decoder initiates the necessary

timings for each operation. A 12 bit address bus

accepts address information in a row/column multi-

plexing arrangement.

Prior to any access operation, the CAS latency,

burst type, burst length, and burst operation type

must be programmed into the SO DIMM by address

inputs A0-A9 during the Mode Register Set cycle.

The SO DIMM is intended to comply with all JEDEC

and INTEL PC100 rev 1.2 standards set for 144 pin

SDRAM SO DIMMs.

The SO DIMM uses serial presence detects imple-

mented via a serial EEPROM using the two pin IIC

protocol. The first 128 bytes of serial PD data are

used by the DIMM manufacturer. The last 128 bytes

are available to the customer.

All control, address, and data input/output circuits

are synchronized with the positive edge of the exter-

nally supplied clock inputs.

All IBM 144-pin SO DIMMs provide a high perfor-

mance, flexible 8-byte interface in a 2.66" long

space-saving footprint.

All inputs are sampled at the positive edge of each

externally supplied clock (CK0, CK1). Internal oper-

ating modes are defined by combinations of the

Card Outline

(Front)

(Back)

143

144

Use is further subject to the provisions at the end of this document.

45L7072.E93888B

5/99

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