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HD40L4019RH Datasheet(PDF) 8 Page - Renesas Technology Corp |
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HD40L4019RH Datasheet(HTML) 8 Page - Renesas Technology Corp |
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8 / 65 page  HD404019R Series 6 Pin Functions Power Supply V CC: Apply the power supply voltage to this pin. GND: Connect to ground. V disp: Power supply pin (multiplexed with RA1) for high-voltage I/O pins with a maximum voltage of 40 V (V CC – 40 V). For details, see the Input/Output section. TEST: For test purposes only. Connect it to V CC. RESET: Resets the MCU. For details, see the Reset section. Oscillators OSC 1, OSC2: OSC1 and OSC2 can be connected to a crystal resonator, ceramic resonator or an external oscillator circuit. For details, see the Internal Oscillator Circuit section. Ports D 0 to D15 (D Port): An input/output port addressed by bits. These 16 pins are all input/output pins. D0 to D3 are standard pins and D 4 to D15 are high-voltage pins. The circuit type for each pin can be selected using a mask option. For details, see the Input/Output section. R0 to RA 1 (R Ports): R0 to R9 are 4-bit I/O ports. Only RA is a 2-bit port. R9 and RA are input ports, and R0 to R8 are I/O ports. R0, R1, R2, and RA are high-voltage ports, and R3 to R9 are standard ports. Each pin has a mask option which selects its circuit type. The pins R3 2, R33, R40, R4 1, and R42 are multiplexed with INT 0, INT1, SCK , SI, and SO, respectively. For details, see the Input/Output section. Interrupts INT 0, INT1: External interrupts for the MCU. INT1 can be used as an external event input pin for timer B. INT 0 and INT1 are multiplexed with R32 and R33, respectively. For details, see the Interrupt 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 R4 0, R41, and R42, respectively. For details, see the Serial Interface section. |
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