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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 OSCILLATOR OSC VSS ADDRESS GENERATOR PLA D/A COUT CONTROL LOGIC LED/BUSY/STOP TG PID223B 02/95 1 MOSEL VITELIC MSS0287 VOICE ROM Absolute Maximum Rating Symbol VDD ~ VSS VIN (TG) VOUT (STOP) T (Operating) T (Storage) Rating -0.5 ~ +7.0 VSS -0.3 < V IN < VDD+0.3 VSS Pad Description Pad No. 1 2 3 4 5 6 7 Signal Name V DD OSC Reserved LED/BUSY/STOP TG C OUT VSS I/O Power I NC O I O Power Function Positive power supply Oscillator resistor input Reserved no Connection LED flasher output/BUSY signal output/One shot stop signal output. Trigger input, active high Current output for driving speaker Negative power supply DC Characteristics Symbol ISB IOP IIH I IL IOC IBZ Parameter Supply Current Stand by Operating Min. Typ. Max. 1 200 +15 0 5 -9 -9 -8 +8 +5 +10 % % Unit A A mA mA mA mA Condition VDD = 4.5V, I/O Open VDD = 4.5V VDD = 3V, full scale. VDD = 4.5V, VDD = 4.5V, VDD = 4.5V, VO/P = VOH VDD = 4.5V, VO/P =V OL FOSC(4.5V) - FOSC(4V) FOSC(4.5V) VDD = 4.5V, ROSC = 1.2M Input Current (TG) Output Current (C OUT ) Output Current (BUSY ) ISTOP Output Current (STOP) IOH IOL F/F F/F Output Current (LED) Frequency Stability Frequency Variation AC Characteristics Symbol T STOP TT Parameter Pulse Width (STOP) Minimal trigger pulse width Min. Typ. 40 20 5 2 Max. Unit ms ms Condition VDD=4.5V Mask = long Mask = short PID223B 02/95 MOSEL VITELIC Timing Diagram I. Edge Trigger Mask I.1. Unholdable output with BUSY output TG AUDIO BUSY MSS0287 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 MOSEL VITELIC MSS0287 Application Circuit 1. Typical application R1 S OSC VDD 3 L/B/S TG T R2 2 1 1120um 1940 um 4 5 6 7 COUT VSS Pin No. Designation 1 VDD 2 OSC 3 NC 4 L/B/S 5 TG 6 COUT 7 VSS X -366.3 -358.3 -358.3 13 266 358.3 366.3 Y -19.6 -340.8 -677.2 -769.2 -769.2 -233.0 -21.8 Note: Substrate is VDD PAD SIZE =90 X 90 um 2. CDS application 3. Power on play R1 OSC TG VDD S C OUT VSS R2 T R1 OSC TG VDD S C OUT VSS R2 T Note: a. R1 =1.2M (S.R.=6KHz ) , T ( transistor ) = > 150 ,S (speaker) =1/4W ,8 ; all typical. b. R2=470 ( 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 TMAMuOuG 886-35-784732 5 PID223B 02/95 |
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