King Billion Electronics Co., Ltd

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HF88M32B

January 16, 2004

2

V1.11

This specification is subject to change without notice. Please contact sales person for the latest version before use.

1.General Description

The HF88M32B is a command interfaced 4M x 8 bit Mask ROM. It features command mode interface

with external CPU or MCU. In other words, it uses only 8-bit data bus and a few additional control pins

to load addresses and provide the ROM access as well as extension I/O ports capability. This design not

only reduces pin count required to access data in ROM dramatically but also allows for systems extension

to higher capacity memories while using the existing board design. The application areas include voice,

graphic, data storage in consumer products.

2.Features

Data File Mode with only 11 pin interface

Sixteen-bit Extension I/O pins with three-state mode

Voltage range: 2.4 ~ 3.6V

Organization

-

Memory Cell Array: 4M x 8

Sequential Read Operation in Data File Operation Mode

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Command/Address/Data Multiplexed I/O port

Low Operation Current (Typical)

-

10

µA standby mode current.

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30 mA active read current at 100 ns cycle time.

Package: bare chip