R5F21331CDFP データシートの表示（PDF） - Renesas Electronics

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R5F21331CDFP

R8C/33C Group RENESAS MCU

Renesas Electronics 

R8C/33C Group

1. Overview

1.5 Pin Functions

Tables 1.5 and 1.6 list Pin Functions.

Table 1.5 Pin Functions (1)

Item

Power supply input

Analog power

supply input

Reset input

MODE

XIN clock input

Pin Name

VCC, VSS

AVCC, AVSS

RESET

MODE

XIN

XIN clock output XOUT

I/O Type

Description

− Apply 1.8 V to 5.5 V to the VCC pin. Apply 0 V to the VSS pin.

− Power supply for the A/D converter.

Connect a capacitor between AVCC and AVSS.

I Input “L” on this pin resets the MCU.

I Connect this pin to VCC via a resistor.

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

Connect a ceramic resonator or a crystal oscillator between

I/O

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

to the XOUT pin and leave the XIN pin open.

XCIN clock input XCIN

XCIN clock output XCOUT

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

Connect a crystal oscillator between the XCIN and XCOUT

O pins (1). To use an external clock, input it to the XCIN pin and

leave the XCOUT pin open.

INT interrupt input INT0, INT1, INT3

Key input interrupt

Timer RA

Timer RB

Timer RC

Timer RE

Serial interface

I2C bus

SSU

KI0 to KI3

TRAIO

TRAO

TRBO

TRCCLK

TRCTRG

TRCIOA, TRCIOB,

TRCIOC, TRCIOD

TREO

CLK0, CLK1, CLK2

RXD0, RXD1, RXD2

TXD0, TXD1, TXD2

CTS2

RTS2

SCL2

SDA2

SCL

SDA

SSI

SCS

SSCK

SSO

I INT interrupt input pins.

INT0 is timer RB, and RC input pin.

I Key input interrupt input pins

I/O Timer RA I/O pin

O Timer RA output pin

O Timer RB output pin

I External clock input pin

I External trigger input pin

I/O Timer RC I/O pins

O Divided clock output pin

I/O Transfer clock I/O pins

I Serial data input pins

O Serial data output pins

I Transmission control input pin

O Reception control output pin

I/O I2C mode clock I/O pin

I/O I2C mode data I/O pin

I/O Clock I/O pin

I/O Data I/O pin

I/O Data I/O pin

I/O Chip-select signal I/O pin

I/O Clock I/O pin

I/O Data I/O pin

I: Input

O: Output

I/O: Input and output

Note:

1. Refer to the oscillator manufacturer for oscillation characteristics.

R01DS0008EJ0100 Rev 1.00

Aug. 24, 2010

Page 8 of 53

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