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PID257*** 05/97

MSS0271

MOSEL VITELIC INC.

Preliminary

Specifications subject to change without notice, contact your sales representatives for the most recent information.

Features

Single power can operate at 2.4 V through 6 V.

Current output can directly drive either buzzer or

speaker without a transistor.

Built-in Oscillating Resistor.

Single section, 2.79 seconds (4380h).

Speech with mute (behind) is up to 21.1 seconds

(20000h).

Repeat function that can repeat up to 8 times.

To turn on LED in sink connection.

Automatic power down.

CDS interface is provided.

Either level or edge trigger type at pin TG.

Either LED flasher or BUSY output at pin LED/BZ.

Either 6200Hz or 8400Hz S.R. for built-in Rosc.

Either holdable output or not.

Either retriggerable output or not.

Either fixed or dynamic type on LED flasher.

Either 3Hz or 6Hz LED fixed flasher, (S.R. dependent).

Either Fast or Slow debounce time.

General Description

The MSS0271 is a single-chip CMOS LSI demands minimal external components and memorizes voice up to 2.88

seconds (at 6 KHz S.R.) using the MOSEL qualified coding method (MPCM-4). The chip contains most of the

necessary circuit like oscillator, PLA, D/A converter, buzzer buffer, control and timing logic. Therefore, it can apply

to various voice systems with minimum external parts. Customer speech data will be edited and programmed into

PLA by changing one mask during the device fabrication.

OSCILLATOR

ADDRESS

GENERATOR

PLA

D/A

CONTROL LOGIC

Block Diagram

SP1

LB

2.7" VOICE ROM

SP2

Vdd

IN1

IN0

TG

Mask options

May 1997