HT23C256 datasheet(1/8 Pages) HOLTEK

номер детали	HT23C256

подробное описание детали	CMOS 32Kx 8-Bit Mask ROM

PDF	8 Pages

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производитель	HOLTEK [Holtek Semiconductor Inc]

домашняя страница	http://www.holtek.com

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HT23C256

CMOS 32K

×8-Bit Mask ROM

Block Diagram

Features

•

Operating voltage 2.7V~5.5V

•

Low power consumption

–

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

10mA max. (VCC=3V)

–

Standby: 30

µA max. (VCC=5V)

10

µA max. (VCC=3V)

•

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

250ns max. (VCC=3V)

•

32768

×8 bits of mask ROM

•

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

output enable OE/OE/NC

•

TTL compatible inputs and outputs

•

Tristate outputs

•

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.

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-

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 30

µA. The combination of

these functions makes the chip suitable for high

density low power memory applications.

1

24th Aug ’98

Аналогичный номер детали - HT23C256

производитель	номер детали	датащи	подробное описание детали
Holtek Semiconductor In...	HT23C010	275Kb / 8P	CMOS 128K쨈 8-Bit Mask ROM 24th Aug 98
	HT23C020	261Kb / 8P	CMOS 256Kx 8-Bit Mask ROM 21st Aug 98
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	HT23C128	248Kb / 8P	CMOS 16Kx 8-Bit Mask ROM 24th Aug 98
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Аналогичное описание - HT23C256

производитель	номер детали	датащи	подробное описание детали
Sanyo Semicon Device	LC3101	289Kb / 14P	128K-BIT CMOS MASK ROM
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Holtek Semiconductor In...	HT23C010	275Kb / 8P	CMOS 128K쨈 8-Bit Mask ROM 24th Aug 98
	HT23C020	261Kb / 8P	CMOS 256Kx 8-Bit Mask ROM 21st Aug 98
	HT23C128	248Kb / 8P	CMOS 16Kx 8-Bit Mask ROM 24th Aug 98
	HT23C512	239Kb / 8P	CMOS 64Kx 8-Bit Mask ROM 24th Aug 98
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NEC	UPD23C256E	100Kb / 3P	32,368 x 8-BIT MASK-PROGRAMMABLE CMOS ROM
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