MOSEL VITELIC INC.
Preliminary
MSS0271
2.7" VOICE ROM
May 1997
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.
Mask options
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.
Block Diagram
Vdd
OSCILLATOR
V
SS
ADDRESS
GENERATOR
PLA
D/A
SP1
SP2
IN1
IN0
TG
CONTROL LOGIC
LB
Specifications subject to change without notice, contact your sales representatives for the most recent information.
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PID257*** 05/97
MOSEL [ MOSEL VITELIC, CORP ]
