HT23C256

更新时间： 2024-02-25 03:29:22

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		/
页数	文件大小	规格书
8页	245K
描述
CMOS 32Kx 8-Bit Mask ROM

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数据手册

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HT23C256 数据手册

HT23C256

CMOS 32K×8-Bit Mask ROM

Features

•

Operating voltage 2.7V~5.5V

32768×8 bits of mask ROM

•

Low power consumption

Operation: 25mA max. (V_CC=5V)

Mask options: chip enable CE/CE/OE1/OE1 and

output enable OE/OE/NC

–

•

10mA max. (V_CC=3V)

TTL compatible inputs and outputs

–

•

Standby: 30µA max. (V_CC=5V)

Tristate outputs

•

10µA max. (V_CC=3V)

Access time:150ns max. (V_CC=5V)

250ns max. (V_CC=3V)

Fully static operation

Package type: 28-pin DIP/SOP

•

General Description

The HT23C256 is a read-only memory with

high performance CMOS storage device whose

256K of memory is arranged into 32768 words

by 8 bits.

essors, but also eliminates bus contention in

multiple bus microprocessor systems. An addi-

tional feature of the HT23C256 is its ability to

enter the standby mode whenever the chip en-

able (CE/CE) is inactive, thus reducing current

consumption to below 30µA. The combination of

these functions makes the chip suitable for high

density low power memory applications.

For application flexibility, the chip enable and

output enable control pins can be selected as

active high or active low. This flexibility not

only allows easy interface with most microproc-

Block Diagram

24th Aug ’98

12 3 4 5 6 7 8

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