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PD62 Datasheet(PDF) 8 Page - Renesas Technology Corp |
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PD62 Datasheet(HTML) 8 Page - Renesas Technology Corp |
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8 / 66 page  6 µPD62 Data Sheet U14208EJ1V0DS00 1. PIN FUNCTIONS 1.1 List of Pin Functions Pin No. Symbol Function Output Format When Reset 1KI/O0-KI/O7 CMOS High-level output 2 push-pullNote 1 15-20 3S0 — High-impedance (OFF mode) 4S1/LED CMOS push-pull High-level output (LED) 5 REM CMOS push-pull Low-level output 6VDD —— 7XOUT — Low level 8XIN (oscillation stopped) 9 GND —— 10 RESET —— 11-14 KI0-KI3Note 2 — Input (low-level) Notes 1. Be careful about this because the drive capability of the low-level output side is held low. 2. In order to prevent malfunction, be sure to input a low level to more than one of pins KI0 to KI3 when reset is released (when RESET pin changes from low level to high level, or POC is released due to supply voltage startup). These pins refer to the 8-bit I/O ports. I/O switching can be made in 8-bit units. In INPUT mode, a pull-down resistor is added. In OUTPUT mode, they can be used as the key scan output of the key matrix. Refers to the input port. Can also be used as the key return input of the key matrix. In INPUT mode, the availability of the pull-down resistor of the S0 and S1 ports can be specified by software in terms in 2-bit units. If INPUT mode is canceled by software, this pin is placed in OFF mode and enters the high-impedance state. Refers to the I/O port. In INPUT mode (S1), this pin can also be used as the key return input of the key matrix. The availability of the pull-down resistor of the S0 and S1 ports can be specified by software in 2-bit units. In OUTPUT mode (LED), it becomes the remote control transmission display output (active low). When the remote control carrier is output from the REM output, this pin outputs the low level from the LED output synchronously with the REM signal. Refers to the infrared remote control transmission output. The output is active high. Carrier frequency: fX/8, fX/64, fX/96, high-level, fX/16, fX/128, fX/192 (usable on software) Refers to the power supply. These pins are connected to system clock ceramic resonators. Refers to the ground. Normally, this pin is a system reset input. By inputting a low level, the CPU can be reset. When resetting with the POC circuit (mask option) a low level is output. A pull-up resistor is incorporated. These pins refer to the 4-bit input ports. They can be used as the key return input of the key matrix. The use of the pull-down resistor can be specified by software in 4-bit units. |
Similar Part No. - PD62_15 |
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Similar Description - PD62_15 |
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