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參數資料
| 型號： | MSSI241B |
| 廠商： | Mosel Vitelic, Corp. |
| 英文描述： | INSTANT VOICE ROM |
| 中文描述： | 即時語音光盤 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 90K |
| 代理商： | MSSI241B |
MOSEL VITELIC
1
PID224B 04/95
MSSI121/241/241B
INSTANT VOICE ROM
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 for 7-12 seconds for
SI121 ( 13-24 for SI241/241B ) including mute
and is single section / phrase and single trigger.
Automatic power down.
A phrase is composed of repetitive sections.
Interrupt function (INTP) stops the audio output
at once.
An LED function with 3Hz flash is provided to
tell the audio status.
A STOP pulse comes out when audio signal is
finished.
CDS input interface with 10ms debounce is
provided for trigger pin, REP pin and INTP pin.
Repeat pin was provided to keep audio output
repeating.
Built-in power on play function and is
programmable.
Programmable option for either Retrigger or not.
Programmable option for either Level or Edge
trigger type.
Programmable option for either Holdable or
Unholdable output type.
Programmable option for repeat times up to 8
times.
Programmable option for either LED display or
STOP pulse on LED/STP pin.
SI121 can be programmed by MSM9159,
MSM9156, MSM9140 & MSM9139.
SI241/241B can be programmed by MSM9159,
MSM9140.
Block Diagram
CLOCK
GENERATOR
CONTROL
LOGIC
TG
INTP
REP
LED/STP
OSC
TIMING
GENERATOR
ADDRESS
GENERATOR
VOICE
ROM
TRIGGER
TABLE
MPCM
DECODER
CURRENT
BUFFER
BUZZER
BUFFER
C
OUT
V
OUT1
V
OUT2
V
DD
V
SS
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