MOSEL VITELIC

1

PID225B 04/94

MSS0605

MOSEL

APRIL

VOICE ROM

Block Diagram

Features

Single

power

supply

can

operate

at

2.4V

through 6V.

Current output can drive 8 ohm speaker

with

a transistor, Vout can drive buzzer directly.

The voice content is stored up to 6 seconds

and can be separated to 9 sections.

Nine trigger input pins are provided. Each

trigger pin can access a phrase instead of

simple section. A phrase is composed of one

or more than one section(s) and called a

section - combination of sections.

Total section number of all phrases is up to 64.

Total duration of all sections with mute is up

to 24 seconds.

Interrupt function (INTP) stops the audio output

at once.

Playall function (OKY) plays all 9 phrases one

by one by single trigger.

Sequential function (OKY): one trigger plays

next phrase of 9 phrases circularly.

2 LED function with 6 or 3 Hz flash is provided

to tell the audio status in alternate flash.

A STOP pulse comes out when audio signal is

finished.

CDS input interface with debounce is provided for

9 trigger pins, OKY pin and INTP pin.

Extra pad for REPeat playing.

Mask option for either real

Busy

or Ground

Busy on BUSY signal.

Mask option for 10ms, 0.4ms, 10us on debounce

time.

Mask option for either PLAYALL or SEQUENTIAL

for one-key function.

Separate option setting on 9 individual trigger

pins and OKY pin for below four masks:

a. Mask option for either Level or Edge trigger

type.

b. Mask option for either Holdable or Unholdable

output type.

c. Mask option for either BUSY output or STOP

pulse on STBZ output.

d. Mask option for either Retrigger or Irretrigger .

Description

The MSS0605 is a monolithic CMOS VLSI ASIC that can memorize voice up to 6 seconds using

MOSEL qualified coding method (MPCM). It can play 9 phrases instead of 9 simple sections. Most

of the necessary circuit are built in like oscillator, ROM, DAC and interface logic.

2 LEDs and

separate option setting is provided . Customer voice data will be edited and built in by mask

programming during the device fabrication.

CLOCK

GENERATOR

CONTROL

LOGIC

TG0

TG1

TG2

TG3

OKY

INTP

REP

LED 1

OSC

TIMING

GENERATOR

ADDRESS

GENERATOR

VOICE

ROM

TRIGGER

TABLE

MPCM

DECODER

CURRENT

BUFFER

BUZZER

BUFFER

TG4

TG5

TG6

TG7

TG8

LED 2

STBZ

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