MOSEL MSS0287

MSS0287
MOSEL VITELIC
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
VDD
VSS
OSCILLATOR
OSC
ADDRESS
GENERATOR
PLA
D/A
COUT
CONTROL LOGIC
LED/BUSY/STOP
1
TG
PID223B 02/95
MSS0287
MOSEL VITELIC
VOICE ROM
Absolute Maximum Rating
Symbol
Unit
Rating
VDD ~ VSS
VIN (TG)
-0.5 ~ +7.0
V
VSS -0.3 < V IN < VDD+0.3
V
VOUT (STOP)
VSS <VOUT < VDD
V
T (Operating)
-10 ~ +60
C
T (Storage)
-55 ~ +125
C
Pad Description
Pad No.
Signal Name
I/O
Function
1
V DD
Power
Positive power supply
2
OSC
I
Oscillator resistor input
3
Reserved
NC
Reserved no Connection
4
LED/BUSY/STOP
O
LED flasher output/BUSY signal output/One shot stop signal output.
5
TG
I
Trigger input, active high
6
C OUT
O
Current output for driving speaker
7
VSS
Power
Negative power supply
DC Characteristics
Symbol
Parameter
ISB
Supply
IOP
Current
IIH
I IL
Min.
Typ.
Stand by
Operating
Max.
Unit
1
µA
VDD = 4.5V, I/O Open
µA
VDD = 4.5V
200
+15
Input Current (TG)
0
Condition
IOC
Output Current (C OUT )
5
mA
VDD = 3V, full scale.
IBZ
Output Current ( BUSY )
-9
mA
VDD = 4.5V,
ISTOP Output Current ( STOP )
-9
mA
VDD = 4.5V,
IOH
-8
IOL
Output Current
(LED)
mA
VDD = 4.5V, VO/P = VOH
VDD = 4.5V, VO/P =V OL
+8
∆F/F
Frequency Stability
+5
%
∆F/F
Frequency Variation
+10
%
F OSC(4.5V) - F OSC (4V)
F OSC(4.5V)
VDD = 4.5V, ROSC = 1.2MΩ
AC Characteristics
Symbol
T STOP
TT
Parameter
Pulse Width (STOP)
Minimal trigger
pulse width
Min.
Typ.
Max.
Unit
40
ms
20
5
ms
2
Condition
VDD=4.5V
Mask = long
Mask = short
PID223B 02/95
MSS0287
MOSEL VITELIC
Timing Diagram
I. Edge Trigger Mask
I.1. Unholdable output with BUSY output
TG
AUDIO
BUSY
I.2. Unholdable output with STOP Pulse
TG
AUDIO
STOP
TSTOP
I.3. Unholdable output with Fixed-Type LED Flasher
TG
AUDIO
LED
I.4. Unholdable output with Dynamic-Type LED Flasher
TG
AUDIO
LED
I.5. Holdable output with BUSY output
TG
AUDIO
BUSY
I.6. Holdable output with STOP Pulse
TG
AUDIO
STOP
I.7. Holdable output with Fixed-Type LED Flasher
TG
AUDIO
LED
I.8. Holdable output with Dynamic-Type LED Flasher
TG
AUDIO
LED
3
PID223B 02/95
MOSEL VITELIC
MSS0287
II. Level Trigger Mask
II.1. Unholdable output with BUSY output
TG
AUDIO
BUSY
II.2. Unholdable output with Stop Pulse
TG
AUDIO
STOP
II.3. Unholdable output with Fixed-Type LED Flasher
TG
AUDIO
LED
II.4. Unholdable output with Dynamic-Type LED Flasher
TG
AUDIO
LED
II.5. Holdable output with BUSY output
TG
AUDIO
BSUY
II.6. Holdable output with Stop Pulse
TG
AUDIO
STOP
II.7. Holdable output with Fixed-Type LED Flasher
TG
AUDIO
LED
II.8. Holdable output with Dynamic-Type LED Flasher
TG
AUDIO
LED
III. Debounce Time
TG
TT
AUDIO
4
PID223B 02/95
MSS0287
MOSEL VITELIC
Application Circuit
1. Typical application
R1
S
VDD
OSC
3
2
1
1940 um
1120um
4
L/B/S
6
5
7
TG
Pin No. Designation
1
VDD
2
OSC
3
NC
4
L/B/S
5
TG
6
COUT
7
VSS
X
Y
-366.3
-358.3
-358.3
13
266
358.3
366.3
-19.6
-340.8
-677.2
-769.2
-769.2
-233.0
-21.8
Note: Substrate is VDD
T
COUT VSS
PAD SIZE =90 X 90 um
R2
2. CDS application
3. Power on play
VDD
R1
OSC
C OUT
TG
VSS
VDD
R1
S
S
OSC
T
C OUT
TG
VSS
R2
T
R2
Note: a. R1 =1.2MΩ (S.R.=6KHz ) , T ( transistor ) = ß > 150 ,S (speaker) =1/4W ,8Ω ; all typical.
b. R2=470Ω ( typical ) to bypass extra current into base to get rid of waveform saturation on collector .
c. In order to avoid false ( or noise ) trigger.
1. To minimize the routing of trigger signal.
2. The routing of trigger signal should be as far away as possible to speaker signal.
MOSEL
No. 1, Ceration Road I, Hsinchu Science-Based Industrial Park, Hsinchu,
Taiwan, R.O.C.
TEL:886-35-783344
FAX:886-35-772788
3910 North Frist street, San Jose, CA. 95134-1501 U.S.A.
TEL:1-408-433-6000
FAX:1-408-433-0952
™A∞»±MΩu∂«Øu°G
886-35-784732
5
PID223B 02/95