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PDF MSS0287 Data sheet ( Hoja de datos )
| Número de pieza | MSS0287 | |
| Descripción | VOICE ROM | |
| Fabricantes | Mosel Vitelic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MSS0287 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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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
VDD
OSC
OSCILLATOR
ADDRESS
GENERATOR
PLA
D/A
CONTROL LOGIC
LED/BUSY/STOP
1
TG
VSS
COUT
PID223B 02/95
1 page  
MOSEL VITELIC
MSS0287
Application Circuit
1. Typical application
R1
Pin No. Designation X
Y
S
OSC VDD
1 VDD -366.3 -19.6
2
OSC
-358.3 -340.8
3 NC
-358.3 -677.2
321
4 L/B/S
13 -769.2
L/B/S
1940 um
4
1120um
5
6
TG
COUT
266 -769.2
358.3 -233.0
56
7
7 VSS
366.3 -21.8
TG
T
COUT VSS
Note: Substrate is VDD
PAD SIZE =90 X 90 um
R2
2. CDS application
3. Power on play
R1 VDD
OSC
TG C OUT
VSS
R2
S
T
R1 VDD
OSC
TG C OUT
VSS
R2
S
T
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∂«Ø8u°8G6-35-784732
5 PID223B 02/95
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet MSS0287.PDF ] | |
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