R5F21326HKSP datasheet(11/56 Pages) RENESAS

Part #	R5F21326HKSP

Description	Refer to Table 1.5 Product List for R8C/32G Group.

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Manufacturer	RENESAS [Renesas Technology Corp]

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11 / 56 page

R8C/32G Group, R8C/32H Group

1. Overview

Under development Preliminary document

Specifications in this document are tentative and subject to change.

R01DS0026EJ0010 Rev.0.10

Page 11 of 53

Feb 08, 2011

1.5

Pin Functions

Tables 1.8 and 1.9 list Pin Functions.

I: Input

O: Output

I/O: Input and output

Note:

1. Refer to the oscillator manufacturer for oscillation characteristics.

Table 1.8

Pin Functions (1)

Item

Pin Name

I/O Type

Description

Power supply input

VCC, VSS

−

Apply 2.7 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

I

Input “L” on this pin resets the MCU.

MODE

I

Connect this pin to VCC via a resistor.

XIN clock input

XIN

I

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

Connect a ceramic resonator or a crystal oscillator between

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

to the XOUT pin and leave the XIN pin open.

XIN clock output

XOUT

I/O

INT interrupt input

INT0 to INT1, INT3

IINT interrupt input pins.

INT0 is timer RB, RC and RD input pin.

Key input interrupt

KI0 to KI3

I

Key input interrupt input pins

Timer RA

TRAIO

I/O

Timer RA I/O pin

TRAO

O

Timer RA output pin

Timer RB

TRBO

O

Timer RB output pin

Timer RC

TRCCLK

I

External clock input pin

TRCTRG

I

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

I

External clock input pin

Serial interface

CLK0, CLK2

I/O

Transfer clock I/O pins

RXD0, RXD2

I

Serial data input pins

TXD0, TXD2

O

Serial data output pins

CTS2

I

Transmission control input pin

RTS2

O

Reception control output pin

SCL2

I/O

I2C mode clock I/O pin

SDA2

I/O

I2C mode data I/O pin

SSU

SSI

I/O

Data I/O pin

SCS

I/O

Chip-select signal I/O pin

SSCK

I/O

Clock I/O pin

SSO

I/O

Data I/O pin

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