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W5231 Datasheet Preview

W5231 Datasheet

Power Speech LOW VOLTAGE ADPCM VOICE SYNTHESIZER

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W523X
Power Speech 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
- 1 - Revision A2




Winbond

W5231 Datasheet Preview

W5231 Datasheet

Power Speech LOW VOLTAGE ADPCM VOICE SYNTHESIZER

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Provides the following mask options:
LED flash frequency: 3 Hz/6 Hz/Off
LED flash type: synchronous/alternate
LED1 section-controlled: Yes/No
LED2 section-controlled/STPC-controlled
AUD output current: 1 mA for one battery, 3 mA for two batteries
Packaged in 20-pin DIP
PIN CONFIGURATION
TG1
TG2
TG3
TG4/LED2/STPC
LED1
STPB
STPA
NC
SPK
VSS
1
2
3
4
5
6
7
8
9
10
20 TEST
19 NC
18 NC
17 NC
16 NC
15 NC
14 NC
13 OSCO
12 OSCI
11 VDD
W523X
-2-


Part Number W5231
Description Power Speech LOW VOLTAGE ADPCM VOICE SYNTHESIZER
Maker Winbond
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