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MSS0287 Datasheet

  • MSS0287

  • VOICE ROM

  • 5頁

  • MOSEL

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MOSEL VITELIC
MSS0287
VOICE ROM
Features
Single power can operate at 2.4V through 6V.
current output can drive 8 ohm speaker with a
transistor.
Total maximum duration is 2.8 seconds. Speech
+ mute is about 21.8 seconds.
Automatic power down.
Repeat function that can repeat up to 8 times.
CDS interface is provided.
It can not trigger itself by stop pulse.
Mask option for either level or edge trigger type.
Mask option for LED flasher, BUSY output or
STOP pulse output.
Mask option for either long (20ms) or short (5ms)
debounce time.
Mask option for either holdable output or not.
Mask option for either fixed (6Hz) or dynamic
type on LED flasher.
Mask option for either retrigger or not.
General Description
The MSS0287 is a single-chip CMOS LSI that memorizes voice up to 2.8 seconds using the MOSEL
qualified coding method (MPCM). 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. Several device can be combined to reach longer voice duration (longer than
2.8 seconds). Customer speech data will be edited and programmed into PLA by changing one mask
during the device fabrication.
Block Diagram
V
DD
OSCILLATOR
OSC
V
SS
ADDRESS
GENERATOR
PLA
D/A
COUT
CONTROL LOGIC
LED/BUSY/STOP
TG
PID223B 02/95
1

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