Datasheet > UPD43256B-XXLL

UPD43256B-XXLL

更新时间： 2024-11-27 03:14:11

品牌	Logo	应用领域
日电电子 - NEC		/
页数	文件大小	规格书
24页	230K
描述
256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT

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中文翻译

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数据手册

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UPD43256B-XXLL 数据手册

DATA SHEET

MOS INTEGRATED CIRCUIT

PD43256B

256K-BIT CMOS STATIC RAM

32K-WORD BY 8-BIT

Description

The µPD43256B is a high speed, low power, and 262,144 bits (32,768 words by 8 bits) CMOS static RAM.

Battery backup is available. And A and B versions are wide voltage operations.

The µPD43256B is packed in 28-pin plastic DIP, 28-pin plastic SOP and 28-pin plastic TSOP (I) (8 x 13.4 mm).

Features

• 32,768 words by 8 bits organization

• Fast access time: 70, 85, 100, 120, 150 ns (MAX.)

• Low voltage operation (A version: V^CC= 3.0 to 5.5 V, B version: V^CC= 2.7 to 5.5 V)

• Low V^CCdata retention: 2.0 V (MIN.)

• /OE input for easy application

Part number

Access time

ns (MAX.)

Operating supply Operating ambient

Supply current

voltage

temperature

°C

At operating

mA (MAX.)

At standby At data retention

µA (MAX.)

µA (MAX.) ^Note1

µPD43256B-xxL

µPD43256B-xxLL

µPD43256B-Axx

µPD43256B-Bxx^Note2

70, 85

4.5 to 5.5

0 to 70

85, 100^Note2, 120^Note2

100, 120, 150

3.0 to 5.5

2.7 to 5.5

Notes 1. T^A≤ 40 °C, V^CC= 3.0 V

2. Access time: 85 ns (MAX.) (V^CC= 4.5 to 5.5 V)

Version X and P

This Data sheet can be applied to the version X and P. Each version is identified with its lot number. Letter X in the

fifth character position in a lot number signifies version X, letter P, version P.

JAPAN

D43256B

Lot number

The information in this document is subject to change without notice. Before using this document, please

confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for

availability and additional information.

The mark ★ shows major revised points.

Document No. M10770EJCV0DS00 (12th edition)

Date Published June 2000 NS CP (K)

Printed in Japan

1990, 1993, 1994

12 3 4 5 6 7...24

中文翻译

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