MSSI241 반도체 회로 부품 판매점
(MSSI241 / MSSI121) INSTANT VOICE ROM
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 Mosel Vitelic |
MOSEL VITELIC
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.
MSSI121/241/241B
INSTANT VOICE ROM
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
INTP
REP
TG
LED/STP
CONTROL
LOGIC
CLOCK
OSC GENERATOR
VDD
VSS
TIMING
GENERATOR
TRIGGER
TABLE
1
ADDRESS
GENERATOR
VOICE
ROM
MPCM
DECODER
CURRENT
BUFFER
BUZZER
BUFFER
C OUT
VOUT1
VOUT2
PID224B 04/95
MOSEL VITELIC
MSSI121/241/241B
Description
The MSSI121/241/241B is an one time programmable CMOS VLSI ASIC that can memorize voice for 7-12
/ 13-24 seconds using 6-bit MOSEL qualified coding method (MPCM). Most of the necessary circuit are
built in like oscillator, ROM, DAC and interface logic. Versatile functions can be performed with minimum
external components. Customer voice data will be edited and built in by MOSEL writer in an instant time
base.
Pad Description
Pad No. Signal Name
1 VDD
2 OSC
3 CLK
4 C OUT
5 INTP
6 REP
7 LED/STP
8 V OUT1
9 V OUT2
10 TG
11 V SS
I/O
Power
I
I
O
I
I
O
O
O
I
Power
Function
Positive power supply
Oscillator Resistor input
Clock for programming
Audio signal current output (for speaker)
Interrupt input, internal pull low, high active
Repeat pin, high active
LED signal output / One shot stop signal output
Audio signal voltage output (for buzzer)
Audio signal voltage output (for buzzer)
Trigger input, internal pull low, high active
Negative power supply
DC Characteristics
Symbol
ISB
IOP
VIH
VIL
IOH
IOL
IOH
IOL
Parameter
Supply Stand by
Current Operating
Input Voltage
TG, INTP, REP
O/P Current
VOUT1 ,VOUT2
O/P Current
VOUT1 ,VOUT2
Drive
Sink
Drive
Sink
Min.
4
-0.3
ICO Output Current (COUT)
IOH Output Current STP
IOL
ILED
Output Current LED
I LK
∆F/F
Input Leakage current
Frequency Stability
0
∆F/F
Fosc Variation
R1 Oscillation Resistor
Typ.
4.5
0
-12
12
-11
11
4
6
-5
+5
12
7.5
1100
770
1200
850
910
660
970
700
Max.
1
500
5
+0.3
10
°” 5
°” 10
Unit
µA
V
mA
mA
mA
mA
mA
µA
%
%
KΩ
Condition
VDD = 4.5V, I/O Open
depend on programmed data
VDD = 4.5V
VDD = 4.5V, VO/P= 0V
VDD = 4.5V, VO/P= 4.5V
VDD = 4.5V, VO/P= 0V
VDD = 4.5V, VO/P= 4.5V
VDD = 3.0V , Full scale
VDD = 4.5V , Full scale
VDD = 4.5V, VO/P= 0V
VDD = 4.5V, VO/P= 4.5V
VDD =4.5V, VDD -VO/P =2V
I241
I241B
I241
I241B
VDD = 4.5V
FOSC(4.5V) - FOSC(4V)
FOSC(4.5V)
VDD = 4.5V, ROSC = 1.2MΩ
VDD = 3.0V, S.R. = 6KHz
VDD = 3.0V, S.R. = 8KHz I121
VDD = 4.5V, S.R. = 6KHz I241
VDD = 4.5V, S.R. = 8KHz
VDD = 3.0V, S.R. = 6KHz
VDD = 3.0V, S.R. = 8KHz I241B
VDD = 4.5V, S.R. = 6KHz
VDD = 4.5V, S.R. = 8KHz
2 PID224B 04/95
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( mosel )
MSSI241 data
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