M38858MC-XXXHP データシートの表示（PDF） - Renesas Electronics

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M38858MC-XXXHP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Renesas Electronics 

MITSUBISHI MICROCOMPUTERS

3885 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

PIN DESCRIPTION

Table 1 Pin description (1)

Pin

VCC, VSS

CNVSS

VREF

AVSS

RESET

XIN

Name

Power source

CNVSS input

Reference voltage

Analog power source

Reset input

Clock input

XOUT

Clock output

P00–P07

I/O port P0

P10–P17

I/O port P1

P20/CMPREF

P21–P27

I/O port P2

P30/PWM00

P31/PWM10

P32–P37

I/O port P3

Functions

Function except a port function

•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.

•Comparator reference power source

•I/O direction register allows each pin to be individually input pin

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.

•Key-on wake-up input pins

•Comparator input pins

•PWM output pins

•Key-on wake-up input pins

•Comparator input pins

•These pins are enabled to control pull-up.

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