HT2844N 查看數據表（PDF） - Holtek Semiconductor

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HT2844N

4-Sound Generator

Holtek Semiconductor 

HT2844

4-Sound Generator

Features

• Single power supply: 2.4V~3.3V

• Low standby current: 1µA (Typ.)

at VDD= 3V

• Auto power-off function

• Eight different sound sections

• Speaker or direct piezo application

• LED flash drive output

• Minimal external components

General Description

The HT2844 is a CMOS LSI chip designed for

use in sound effect products. It is equipped with

tone circuit, noise circuit, and other control

logic to generate various sounds including rifle

fire, machine gun, booming, door bell, Alarm,

and so forth. Customer’s supplied sound source

can be analyzed and programmed into an inter-

nal ROM by changing a mask layer during de-

vice fabrication. The HT2844 is suitable for

various toy applications.

Pin Assignment

Pad Assignment

Chip size: 81 × 67 (mil)2

* The IC substrate should be connected to VDD

in the PCB layout artwork.

1

11th July ’97

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