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UPD4564323中文资料瑞萨数据手册PDF规格书

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厂商型号

UPD4564323

功能描述

64M-bit Synchronous DRAM 4-bank, LVTTL

文件大小

1.04801 Mbytes

页面数量

84

生产厂商

NEC

中文名称

瑞萨

网址

网址

数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-10-12 14:16:00

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UPD4564323价格和库存,欢迎联系客服免费人工找货

UPD4564323规格书详情

描述 Description

The µPD4564323 is a high-speed 67,108,864-bit synchronous dynamic random-access memory, organized as 524,288 words × 32 bits × 4 banks.

The synchronous DRAMs achieved high-speed data transfer using the pipeline architecture.

All inputs and outputs are synchronized with the positive edge of the clock.

The synchronous DRAMs are compatible with Low Voltage TTL (LVTTL).

These products are packaged in 86-pin TSOP (II).

特性 Features

• Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge

• Pulsed interface

• Possible to assert random column address in every cycle

• Quad internal banks controlled by BA0 and BA1 (Bank Select)

• ×32 organization

• Byte control by DQM0, DQM1, DQM2 and DQM3

• Programmable Wrap sequence (Sequential / Interleave)

• Programmable burst length (1, 2, 4, 8 and full page)

• Programmable /CAS latency (2 and 3)

• Automatic precharge and controlled precharge

• CBR (Auto) refresh and self refresh

• Single 3.3 V ± 0.3 V power supply

• LVTTL compatible inputs and outputs

• 4,096 refresh cycles / 64 ms

• Burst termination by Burst stop command and Precharge command

供应商 型号 品牌 批号 封装 库存 备注 价格
TSOP-86
24+
TSOP86
80000
只做自己库存 全新原装进口正品假一赔百 可开13%增
询价
NEC
20+
TSSOP-86
67500
原装优势主营型号-可开原型号增税票
询价
NEC
20+
TSSOP
2960
诚信交易大量库存现货
询价
NEC
00+
SOP
1670
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价
NEC
2000
SOP
59
原装现货海量库存欢迎咨询
询价
NEC
2023+
TSOP86
8800
正品渠道现货 终端可提供BOM表配单。
询价
24+
TSOP
331
询价
NEC
专业铁帽
TSSOP-86
19
原装铁帽专营,代理渠道量大可订货
询价
NEC
24+
TSSOP
20000
全新原厂原装,进口正品现货,正规渠道可含税!!
询价
NEC
24+
SOP
9600
原装现货,优势供应,支持实单!
询价