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HD40L4812TF Datasheet(PDF) 9 Page - Renesas Technology Corp |
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HD40L4812TF Datasheet(HTML) 9 Page - Renesas Technology Corp |
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9 / 100 page  HD404818 Series 7 Pin Functions Power Supply V CC: Apply the VCC power supply voltage to this pin. GND: Connect to ground. TEST: For test purposes only. Connect it to V CC. RESET: MCU reset pin. Refer to the Reset section for details. NUMG: Non-user pin. Connect it to GND. NUMO: Non-user pin. Do not connect it to any lines. Oscillators OSC 1, OSC2: Internal oscillator input pins. They both can be connected to a crystal, ceramic resonator, or external oscillator circuit. Refer to the Internal Oscillator Circuit section for details. X1, X2: Watch oscillator 32-kHz crystal pins. Ports D 0–D13 (D Port): Fourteen 1-bit I/O ports. D0 to D9 are I/O ports and D 10 to D13 are input ports. D0–D9 are high current output ports (15 mA max.). D 11–D13 are also available as voltage comparators. Refer to the Input/Output section for details. R0–R3 (R Ports): 4-bit I/O ports. R0 0, R01, R02, R31, R32, and R33 are multiplexed with SCK, SI, SO, TIMO, INT 0, and INT1, respectively. Interrupts INT 0, INT1: External interrupt pins. INT1 can be used as an external event input pin for timer B. INT 0 and INT 1 are multiplexed with R32 and R33, respectively. For details, see the Interrupts section. Serial Interface SCK, SI, SO: The transmit clock I/O pin (SCK), serial data input pin (SI), and serial data output pin (SO) are used for serial interface. SCK, SI, and SO are multiplexed with R0 0, R01, and R02, respectively. For details, see the Serial Interface section. Timer TIMO: Variable duty-cycle pulse waveform output pin. See the Timer C section for details. |
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