STK88C4050

Syntek Semiconductor Co., Ltd. Specification 1. FEATURES * Operating voltage : 2.5V - 5.5V. * Maximum CPU operating frequency : 4,194,304Hz at 2.7V. * Provide X’tal or RC oscillator. Both can run at high speed or slow speed(low power). RC oscillator can detect internal or external resister automatically. * I/O port. 24 I/O pins. 8 of 24 pins with wake up function. * Five 12-bit timers. * Four channels for voice or melody processing. * Two DACs for voice or melody playing. Also, internal programming for single DAC playing. * One pair of PWM for voice or melody playing. * Eight interrupt sources : NMI - Can be Watchdog Timer interrupt IRQ0 - Timer 0 interrupt IRQ1 - Timer 1 interrupt IRQ2 - Timer 2 interrupt IRQ3 - Timer 3 interrupt IRQ4 - Timer 4 interrupt IRQ5 - External interrupt IRQ6 - Base Timer interrupt STK88C4050 w w w .D at aS he et 4U .c om Voice Microcontroller 1/23 www.DataSheet4U.com Syntek Semiconductor Co., Ltd. 2. PIN NAME ASSIGNMENT ( Total: 97 pads ) 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15) 16) 17) 18) 19) 20) 21) 22) 23) 24) 25) 26) 27) 28) 29) 30) 31) 32) Pin Name P10~P17 P20~P27 P30~P37 DAC1 DAC2 PWM1 PWM2 VCOCAP RXOSC XOSC2 RESB TESTB VDD VDD(PWM) GND1 GND2 GND(PWM) ROMSEL[1:0] ROMCSB ROMEB[3:0] RADDR[19:14] XADDR[4:1] ADDR[15:0] DATA[7:0] IRQA ICE_MOD R/W CPUDATA[7:0] RDY6502 IRQL NMIL CRESB I/O I/O I/O I/O O O O O I/O I O I I I I I I I I O O O O I/O I I I I/O I/O O O O O Function description 8-bit I/O pins for port 1 with wake-up interrupt...