L36C datasheet(23/75 Pages) RENESAS

23 / 75 page

R8C/L35C Group, R8C/L36C Group, R8C/L38C Group, R8C/L3AC Group

1. Overview

REJ03B0293-0100 Rev.1.00

Page 23 of 72

Jun 25, 2010

1.5

Pin Functions

Tables 1.14 and 1.15 list Pin Functions.

I: Input

O: Output

I/O: Input and output

Note:

1. Contact the oscillator manufacturer for oscillation characteristics.

Table 1.14

Pin Functions (1)

Item

Pin Name

I/O Type

Description

Power supply input

VCC, VSS

−

Apply 1.8 V to 5.5 V to the VCC pin.

Apply 0 V to the VSS pin.

Analog power

supply input

AVCC, AVSS

−

Power supply for the A/D converter.

Connect a capacitor between AVCC and AVSS.

Reset input

RESET

Driving this pin low resets the MCU.

MODE

Connect this pin to VCC via a resistor.

Power-off mode exit

input

WKUP0

This pin is provided for input to exit the mode used in power-off

mode. Connect to VSS when not using power-off mode.

XIN clock input

XIN

These pins are provided for XIN clock generation circuit I/O.

Connect a ceramic oscillator or a crystal oscillator between pins

XIN and XOUT. (1) To use an external clock, input it to the XIN

pin and leave the XOUT pin open.

XIN clock output

XOUT

XCIN clock input

XCIN

These pins are provided for XCIN clock generation circuit I/O.

Connect a crystal oscillator between pins XCIN and XCOUT. (1)

To use an external clock, input it to the XCIN pin and leave the

XCOUT pin open.

XCIN clock output

XCOUT

INT interrupt input

INT0 to INT7

IINT interrupt input pins.

Key input interrupt

KI0 to KI7

Key input interrupt input pins

Timer RA

TRAIO

I/O

Timer RA I/O pin

TRAO

Timer RA output pin

Timer RB

TRBO

Timer RB output pin

Timer RC

TRCCLK

External clock input pin

TRCTRG

External trigger input pin

TRCIOA, TRCIOB,

TRCIOC, TRCIOD

I/O

Timer RC I/O pins

Timer RD

TRDIOA0, TRDIOA1,

TRDIOB0, TRDIOB1,

TRDIOC0, TRDIOC1,

TRDIOD0, TRDIOD1

I/O

Timer RD I/O pins

TRDCLK

External clock input pin

Timer RE

TREO

Divided clock output pin

Timer RG

TRGCLKA, TRGCLKB

Timer RG input pins

TRGIOA, TRGIOB

I/O

Timer RG I/O pins

Serial interface

CLK0, CLK1, CLK2

I/O

Transfer clock I/O pins

RXD0, RXD1, RXD2

Serial data input pins

TXD0, TXD1, TXD2

Serial data output pins

CTS2

Transmission control input pin

RTS2

Reception control output pin

SCL2

I/O

I2C mode clock I/O pin

SDA2

I/O

I2C mode data I/O pin

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