W5231 View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

W5231

Power Speech LOW VOLTAGE ADPCM VOICE SYNTHESIZER

Winbond 

W523X

PowerSpeech LOW VOLTAGE

ADPCM VOICE SYNTHESIZER

GENERAL DESCRIPTION

The W523X is a programmable speech synthesis IC that utilizes the ADPCM coding method to

generate all types of voice effects. The W523X's LOAD and JUMP commands and four programmable

registers provide powerful user-programmable functions that make this chip suitable for an extremely

wide range of speech IC applications.

The W523X family includes the W5231, W5232, W5233, and W5234. The ROM size of each of these

products is shown below:

BODY

W5231

W5232

W5233

Second

3 Sec

6 Sec

9 Sec

Note: All of the playback lengths are estimated by typical applications.

W5234

12 Sec

FEATURES

• Wide operating voltage range: 1.2 to 3.6 volts

• Programmable speech synthesizer

• 4-bit ADPCM synthesis method and 8-bit D/A converter

• RC oscillator with built-in capacitor; voice output frequency typically at 6 KHz

• Provides 4 trigger inputs

• Drives 2 flash LEDs for two batteries

• 3 STOP output signals

• Flexible functions programmable through the following:

− LD (load), JP (jump) commands

− Four registers: R0, EN, STOP, and MODE

− Conditional instructions

− Speech equation

− Global repeat (GR) setting

• Programmable power-on initialization (POI), which can be interrupted by trigger inputs

• Interrupt or non-interrupt for rising or falling edge of each trigger pin (this feature determines

retriggerable, non-retriggerable, overwrite, and non-overwrite features of each trigger pin)

• LED On/Off control can be set independently in each GO instruction of speech equation

• Independent control of LED1 and LED2

• Total of 256 voice group entries available for programming

(including eight hardware and 248 software group entry points)

• 20 to 40 mS debounce time

Publication Release Date: March 1996

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Revision A2

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