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STK88C4831 Dataheets PDF



Part Number STK88C4831
Manufacturers Syntec Semiconductor
Logo Syntec Semiconductor
Description Adpcm Voice Controller
Datasheet STK88C4831 DatasheetSTK88C4831 Datasheet (PDF)

Syntek Semiconductor Co., Ltd. 1. FEATURES : STK88C4831 w w w .D at aS he et 4U .c om Voice Microcontroller 1 / 7 Ver 3.0 06/99 www.DataSheet4U.com * Operating voltage : 2.5V - 3.5V. * Maximum CPU operating frequency : 4MHz at 2.7V * Built-in RC oscillator circuit. The oscillation frequency is controlled by an external resistor. * Built-in PLL circuit to generate the system clock with 5 times oscillation frequency. * Audio output ports with 3-bit loudness control One current output port fo.

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Syntek Semiconductor Co., Ltd. 1. FEATURES : STK88C4831 w w w .D at aS he et 4U .c om Voice Microcontroller 1 / 7 Ver 3.0 06/99 www.DataSheet4U.com * Operating voltage : 2.5V - 3.5V. * Maximum CPU operating frequency : 4MHz at 2.7V * Built-in RC oscillator circuit. The oscillation frequency is controlled by an external resistor. * Built-in PLL circuit to generate the system clock with 5 times oscillation frequency. * Audio output ports with 3-bit loudness control One current output port for speaker output. Two PWM output ports can drive 8,16,64 ohm speaker or buzzer directly. * I/O port. 8 I/O pins. Port 1 with selectable interrupt. Port 1 with 6 CDS interface and 2 schmitt trigger input. * Output port 8 output pins. port 2 with 8 inverter type output pins. * Built in 128 bytes RAM *Built in ROM for program and speech data 48K bytes for 88C4831 37K bytes for 88C3731 * Three 8-bit timers. * Five interrupt sources : NMI - Watchdog Timer interrupt IRQ1 - Timer 1 interrupt IRQ2 - Timer 2 interrupt IRQ3 - Timer 3 interrupt IRQ4 - External interrupt Syntek Semiconductor Co., Ltd. STK88C4831 2. PIN DESCRIPTION : Pin name P10-P17 P20-P27 AUD1 PWM1 PWM2 OSC RESB CAP TESTB VDD VSS I/O I/O O O O O I I I I (Total 25 pads) Function description 8-bit I/O pins for port 1 with wake-up interrupt 8-bit output pins for port 2 Audio channel 1 current mode D/A output Audio channel 1 PWM output Audio channel 2 PWM output Main system oscillator input pin for chip System reset Capacitor for PLL circuit. Test pin. Keep floating or connect to Vdd Power input Power ground PART 8-bit Algorithm 88C4831 88C3731 48KB 37KB Capacity 5-bit Algorithm C000h*8 49150*8 13330h*5 78640*5 9000h*8 36860*8 E660h*5 58980*5 Voice Microcontroller 2 / 7 Ver 3.0 06/99 Syntek Semiconductor Co., Ltd. 3. Block diagram : STK88C4831 8-bit CPU OSC & Clock Gen. OSC CAP 48K bytes ROM 3 Timers 128 bytes RAM PWM output PWM1 PWM2 8-bit D/A with 3-bit volume control AUD1 I/O port 1 Out port 2 P10-P17 P20-P27 Voice Microcontroller 3 / 7 Ver 3.0 06/99 Syntek Semiconductor Co., Ltd. 4.Data/Control Register Line up 1) Sleep mode register. Write only. 2) IRQ flag register. Read & Write. 3) Port 0 data. Read & write. 4) Port 0 control . Write only. 5) Port 1 data. Write only. 6) Port 0 interrupt control. Write only. 7) Port 1 pull-up control. Write only. 8) Timer 1,2,3 data. Write only. 9) Overall control. Write only. 10) Loudness control. Write only 11) Data for audio. Write only. 12) Watchdog timer clear. Write only. STK88C4831 Voice Microcontroller 4 / 7 Ver 3.0 06/99 Syntek Semiconductor Co., Ltd. STK88C4831 5. ABSOLUTE MAXIMUM RATINGS Operating temperature ........................................................................ 0 to 70 ¢J Storage temperature ...................................................................... -65 to 150 ¢J Supply voltage ............................................................................................... 7 V Input voltage ........................................................................... -0.6 to Vdd+0.6 V 6. ELECTRICAL CHARACTERISTIC : Parameter Supply Voltage Rosc RC oscillation frequency Operating current Standby current Sleep mode current Input high voltage Input low voltage Input high leakage current Input low leakage current Output high voltage Output low voltage Output high voltage (PWM1, PWM2) Output low voltage (PWM1, PWM2) AUD (D/A full scale) Symbol Vdd Rosc ∅ sys Idd Istdby Islp Vih Vil Iih Iil Voh Vol Voh Vol Io Vdd=2.7V Vdd=3V, ∅ sys=4Mhz Vdd=3V, ∅ sys=4Mhz Vdd=3V Vdd=3.0V Vdd=3.0V Vih=Vdd Vil=0 Ioh=-2mA Iol=4mA Vdd=3V, Ioh=-60mA Vdd=3V, Iol=75mA Vdd=3V, Rl=100 OHM Vdd0.4 0 Vdd-1 0 -4.0 2.0 -0.6 0.8 1 -5 Vdd 0.4 Vdd 1 400 1.5 1 1 Condition Min 2.5 Typ. Max Unit 3.0 650 800 3.5 V ohm Khz mA mA µA V V µA µA V V V V mA Voice Microcontroller 5 / 7 Ver 3.0 06/99 Syntek Semiconductor Co., Ltd. 7. IC PAD LAYOUT STK88C4831 IC Substrate Connect To: Vss or floating Voice Microcontroller 6 / 7 Ver 3.0 06/99 Syntek Semiconductor Co., Ltd. Customer Information Sheet 1. Customer's Name : ____________________ 2. Project title : _________________________ 3. Syntek part number : ___________________ (will be filled by Syntek) 4. Package --------- ( ) Chip 6. Customer code : Code form ----------------- ( ) EPROM Checksum ----------------- 0000-3FFF 4000-7FFF 8000-BFFF 0000-BFFF 7. Others : ( ) file _______________ __________H __________H __________H __________H ( ) QFP STK88C4831 Customer : __________________ Date : __/__/__ Salesman : __________________ Date : __/__/__ Voice Microcontroller 7 / 7 Ver 3.0 06/99 .


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