HT23C040 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT23C040

CMOS 512Kx
8-Bit Mask ROM

Holtek Semiconductor 

HT23C040

CMOS 512K´8-Bit Mask ROM

Features

· Operating voltage: 2.7V~5.5V

· Low power consumption

– Operation: 25mA max. (VCC=5V)

10mA max. (VCC=3V)

– Standby: 30mA max. (VCC=5V)

10mA max. (VCC=3V)

· Access time: 120ns max. (VCC=5V)

250ns max. (VCC=3V)

General Description

The HT23C040 is a read-only memory with

high performance CMOS storage device whose

4096K of memory is arranged into 524288 word

by 8 bits.

For application flexibility, the chip enable and

output enable control pins can be selected as ac-

tive high or active low. This flexibility not only

allows easy interface with most microproces-

sors, but also eliminates bus contention in mul-

· 524288´8-bit of mask ROM

· Mask option: chip enable CE/CE/OE1/OE1,

and output enable OE/OE/NC

· TTL compatible inputs and outputs

· Tristate outputs

· Fully static operation

· Package type: 32-pin DIP/SOP

tiple bus microprocessor systems. An

additional feature of the HT23C040 is its abil-

ity to enter the standby mode whenever the

chip enable (CE/CE) is inactive, thus reducing

current consumption to below 30mA. The combi-

nation of these functions makes the chip suit-

able for high density low power memory

applications.

1

January 20, 2000

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