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M38850F8-HP Datasheet(PDF) 4 Page - Renesas Technology Corp |
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M38850F8-HP Datasheet(HTML) 4 Page - Renesas Technology Corp |
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4 / 103 page  3885 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS 3 VCC, VSS PIN DESCRIPTION Functions Name Pin •Apply voltage of 3.0 V ±10 % to Vcc, and 0 V to Vss. •Connected to VSS. •In the flash memory version, this pin functions as the VPP power source input pin. •Reference voltage input pin for A-D and D-A converters. •Analog power source input pin for A-D and D-A converters. •Connect to VSS. •Reset input pin for active “L”. •Input and output pins for the clock generating circuit. •Connect a ceramic resonator or quartz-crystal oscillator between the XIN and XOUT pins to set the oscillation frequency. •When an external clock is used, connect the clock source to the XIN pin and leave the XOUT pin open. •8-bit I/O port. •I/O direction register allows each pin to be individually programmed as either input or output. •CMOS compatible input level. •CMOS 3-state output structure or N-channel open-drain output structure. •8-bit I/O port. •I/O direction register allows each pin to be individually programmed as either input or output. •CMOS compatible input level. •CMOS 3-state output structure or N-channel open-drain output structure. •8-bit I/O port. •I/O direction register allows each pin to be individually programmed as either input or output. •CMOS compatible input level. •CMOS 3-state output structure. •P24 to P27 (4 bits) are enabled to output large current for LED drive. •8-bit I/O port. •I/O direction register allows each pin to be individually programmed as either input or output. •CMOS compatible input level. •CMOS 3-state output structure. •These pins function as key-on wake-up and compara- tor input. •These pins are enabled to control pull-up. Power source Table 1 Pin description (1) Function except a port function •Comparator reference power source input pin Reference voltage Analog power source Clock input Clock output I/O port P0 I/O port P1 VREF AVSS CNVSS input RESET Reset input XIN XOUT P00–P07 P10–P17 P21–P27 •Key-on wake-up input pins •Comparator input pins •PWM output pins •Key-on wake-up input pins •Comparator input pins I/O port P2 I/O port P3 P30/PWM00 P31/PWM10 P32–P37 CNVSS P20/CMPREF |
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