Datasheet > NT256D64S88ABG-6

NT256D64S88ABG-6

更新时间： 2024-01-22 22:38:27

品牌	Logo	应用领域
其他 - ETC		动态存储器双倍数据速率
页数	文件大小	规格书
15页	838K
描述
184pin One Bank Unbuffered DDR SDRAM MODULE

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NT256D64S88ABG-6 数据手册

NT256D64S88ABG

256MB : 32M x 64

PC2700 Unbuffered DIMM

184pin One Bank Unbuffered DDR SDRAM MODULE Based on DDR333 32Mx8 SDRAM

Features

• 184-Pin Unbuffered 8-Byte Dual In-Line Memory Module

• 32Mx64 Double Data Rate (DDR) SDRAM DIMM

• DRAM DLL aligns DQ and DQS transitions with clock

transitions.

• Performance:

• Address and control signals are fully synchronous to positive

clock edge

PC2700

• Programmable Operation:

- DIMM CAS Latency: 2, 2.5

- Burst Type: Sequential or Interleave

- Burst Length: 2, 4, 8

- Operation: Burst Read and Write

• Auto-Refresh (CBR) and Self-Refresh Modes

• Automatic and controlled precharge commands

• 13/10/1 Addressing (row/column/bank)

• 7.8 µs Max. Average Periodic Refresh Interval

• Serial Presence Detect

Unit

Speed Sort

DIMM CAS Latency

f CK Clock Frequency

t CK Clock Cycle

-6

2.5

166

133

7.5

266

MHz

f DQ DQ Burst Frequency

333

• Intended for 100 MHz and 133 MHz applications

• Inputs and outputs are SSTL-2 compatible

• VDD = 2.5Volt ± 0.2, VDDQ = 2.5Volt ± 0.2

• SDRAMs have 4 internal banks for concurrent operation

• Module has one physical bank

• Gold contacts

• SDRAMs in 66-pin TSOP Type II Package

• Differential clock inputs

• Data is read or written on both clock edges

Description

NT256D64S88ABG is an unbuffered 184-Pin Double Data Rate (DDR) Synchronous DRAM Dual In-Line Memory Module (DIMM),

organized as a one-bank high-speed memory array. The 32Mx64 module is a single-bank DIMM that uses eight 32Mx8 DDR

SDRAMs in 400 mil TSOP packages. The DIMM achieves high-speed data transfer rates of up to 333MHz. The DIMM is intended for use

in applications operating from 133 MHz to 166 MHz clock speeds with data rates of 266 to 333 MHz. Clock enable CKE0 controls all

devices on the DIMM.

Prior to any access operation, the device CAS latency and burst type/ length/operation type must be programmed into the DIMM by

address inputs A0-A12 and I/O inputs BA0 and BA1 using the mode register set cycle.

These DIMMs are manufactured using raw cards developed for broad industry use as reference designs. The use of these common

design files minimizes electrical variation between suppliers.

The DIMM uses serial presence detects implemented via a serial EEPROM using the two-pin IIC protocol. The first 128 bytes of serial PD

data are programmed and locked during module assembly. The last 128 bytes are available to the customer.

All NANYA 184 DDR SDRAM DIMMs provide a high-performance, flexible 8-byte interface in a 5.25” long space-saving footprint.

Ordering Information

Part Number

Speed

166MHz (6ns @ CL = 2.5)

133MHz (7.5ns @ CL= 2)

Organization

32Mx64

Leads

Gold

Power

2.5V

NT256D64S88ABG-6

PC2700

REV 1.1

08/2002

NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.

12 3 4 5 6 7...15

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与NT256D64S88ABG-6相关器件

型号	品牌	获取价格	描述	数据表
NT256D64S88B0G	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S88B0G-6K	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S88B0G-75B	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S88B1G	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S88B1G-5T	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S88B1GX	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S88B1GY	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S88B1GY-5T	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S88B1GY-6K	ETC	获取价格	184 pin Unbuffered DDR DIMM
NT256D64S8HA0G	ETC	获取价格	184pin Two Bank Unbuffered DDR SDRAM MODULE

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