HT81R18

更新时间： 2024-01-22 16:30:59

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		音频合成器集成电路消费电路商用集成电路
页数	文件大小	规格书
19页	228K
描述
EasyVoice Speech

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技术参数
数据手册

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HT81R18 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.84	Is Samacsys：	N
商用集成电路类型：	SPEECH SYNTHESIZER	Base Number Matches：	1

HT81R18 数据手册

HT81XXX

EasyVoice^TMSpeech

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

6 keys (Directed)

8 keys (Matrix key)

Key options

240 notes table ROM for key functions

Programmable silence length and end-pulse width

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

rate)

Sequential/Directed

Repeat (KEY2~KEY6)

Controllable volume

STOP key (KEY6)

FLAG1 options

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

(based on a 8kHz sampling rate)

End-pulse output

One shot/Normal

3Hz, 3HzB flash

6Hz, 6HzB flash

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

Busy output

Section options

OFF

Retriggerable

Non-retriggerable

Dice form or 16-pin DIP package

Applications

Leisure products

Alert and warning system

Sound effect generators

Alarm clocks

General Description

The EasyVoice^TMis a single-chip voice synthesizer LSI .

The chip when triggered drives a speaker directly or

through an external transistor with a PWM output. Negli-

gible 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 EasyVoice^TMis

excellent for versatile voice applications.

The HT81XXX provides direct key or Matrix key input

and 2 programmable FLAG outputs. With 2.4V~5.0V

power supply, a complete synthesized voice playback

system can be easily built with very few external compo-

nents.

Selection Table

Mask

OTP

HT81003

HT81R03

3 sec

HT81006

HT81009

HT81R09

9 sec

HT81012

HT81018

HT81R18

18 sec

Part No.

HT81R36

Voice Capacity

6 sec

12 sec

36 sec

Note: The voice capacity is calculated based on 5kHz sampling rate.

For 3-second capacity HT81003/HT81R03 devices, refer to the its relevant data sheet.

EasyVoice^TMis a trademark of Holtek Semiconductor Inc.

Rev. 1.40

March 1, 2005

12 3 4 5 6 7...19

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