Datasheet > HT81003_02

HT81003_02

更新时间： 2022-04-23 23:00:11

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	142K
描述
EasyVoiceTM 3-Second Speech

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HT81003_02 数据手册

HT81003

EasyVoice^TM3-Second Speech

Features

Operating voltage: 2.4V~5V

FLAG2 options

Directly drives an external transistor

3Hz flash

6Hz flash

PWM function directly driver speaker

Busy output

Low standby current (1mA typ. for V_DD=3V)

OFF

Minimal external components

2 keys

240 notes table ROM for key functions

Key options

Programmable silence length and end-pulse width

(minimal end-pulse width is 1.3ms at 8kHz sampling

rate)

Sequential/Directed

Repeat (KEY2)

STOP key (KEY2)

3-sec voice capacity (based on a 5kHz sampling

rate)

Key debounce time: 1.2ms, 22ms, 45ms

(based on a 8kHz sampling rate)

One shot/Normal

Controllable volume

FLAG1 options

Pull-high resistance: 0, 50kW, 100kW, 200kW

Section options

End-pulse output

Retriggerable

3Hz, 3HzB flash

Non-retriggerable

6Hz, 6HzB flash

Dice form or 16-pin DIP package

Busy output

OFF

Applications

Leisure products

Alert and warning system

Sound effect generators

Alarm clocks

Public address system

General Description

The HT81003 is a Mask ROM type. The HT81003 is a

single-chip voice synthesizer LSI with 3-second voice

capacity at 5kHz sampling rate. The chip when triggered

drives a speaker through an external transistor with a

PWM output. Negligible current is consumed in the

standby state.

The customer¢s voice sources are recorded section by

section into an internal mask ROM. The instructions of

section playback arrangement of each key are stored in

the table ROM. The key features are also programma-

ble. With such a flexible structure, the HT81003 is excel-

lent for versatile voice applications.

The HT81003 provides 2-key inputs and 2 programma-

ble FLAG outputs. With 2.4V~5.0V power supply, a

complete synthesized voice playback system can be

easily built with very few external components.

EasyVoice^TMis a trademark of Holtek Semiconductor Inc.

Rev. 1.10

January 22, 2002

12 3 4 5 6 7 8

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