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UPD784938A Datasheet(PDF) 8 Page - NEC |
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UPD784938A Datasheet(HTML) 8 Page - NEC |
8 / 52 page µPD78F4938A 8 Data Sheet U14118EJ1V0DS A8 to A19: Address bus AD0 to AD7: Address/data bus ANI0 to ANI7: Analog input ASCK, ASCK2: Asynchronous serial clock ASTB: Address strobe AVDD: Analog power supply AVREF1: Reference voltage AVSS: Analog ground CI: Clock input CLKOUT: Clock output HLDAK: Hold acknowledge HLDRQ: Hold request INTP0 to INTP5: Interrupt from peripherals NMI: Non-maskable interrupt P00 to P07: Port 0 P10 to P17: Port 1 P20 to P27: Port 2 P30 to P37: Port 3 P40 to P47: Port 4 P50 to P57: Port 5 P60 to P67: Port 6 P70 to P77: Port 7 P90 to P97: Port 9 P100 to P107: Port 10 PWM0, PWM1: Pulse width modulation output RD: Read strobe REFRQ: Refresh request REGC: Regulator capacitance REGOFF: Regulator off RESET: Reset RX: IEBus receive data RxD, RxD2: Receive data SCK0 to SCK3: Serial clock SI0 to SI3: Serial input SO0 to SO3: Serial output TO0 to TO3: Timer output TX: IEBus transmit data TxD, TxD2: Transmit data VDD: Power supply VPP: Programming power supply VSS: Ground WAIT: Wait WR: Write strobe X1, X2: Crystal (main system clock) XT1, XT2: Crystal (watch) |
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Similar Description - UPD784938A |
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