R5F21114FP datasheet(6/29 Pages) RENESAS

Part #	R5F21114FP

Description	SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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6 / 29 page

Rev.1.40

Sep 30, 2004

page 6 of 26

REJ03B0034-0140Z

R8C/11 Group

1. Overview

Signal name

Pin name

I/O type

Power supply

Vcc,

I

input

Vss

IVcc

O

Analog power

AVcc, AVss

I

supply input

Reset input

___________

RESET

I

CNVss

I

MODE

I

Main clock input

XIN

I

Main clock output XOUT

O

_____

INT interrupt input

_______

INT0 to INT3

I

Key input interrupt

_____

KI0 to KI3

I

Timer X

CNTR0

I/O

____________

CNTR0

O

Timer Y

CNTR1

I/O

Timer Z

TZOUT

O

Timer C

TCIN

I

CMP00 to CMP03, O

CMP10 to CMP13

Serial interface

CLK0

I/O

RxD0, RxD1

I

TxD0, TxD10,O

TxD11

Reference voltage VREF

I

input

A/D converter

AN0 to AN11

I

I/O port

P00 to P07,

I/O

P10 to P17,

P30 to P33, P37,

P45

Input port

P46, P47

I

Function

Apply 2.7 V to 5.5 V to the Vcc pin. Apply 0 V to the

Vss pin.

This pin is to stabilize internal power supply.

Connect this pin to Vss via a capacitor (0.1

µF).

Do not connect to Vcc.

These are power supply input pins for A/D converter.

Connect the AVss pin to Vss. Connect a capacitor

between pins AVcc and AVss.

“L” on this input resets the MCU.

Connect this pin to Vss via a resistor.

Connect this pin to Vcc via a resistor.

These pins are provided for the main clock generat-

ing circuit I/O. Connect a ceramic resonator or a crys-

tal oscillator between the XIN and XOUT pins. To use

an externally derived clock, input it to the XIN pin and

leave the XOUT pin open.

______

These are INT interrupt input pins.

These are key input interrupt pins.

This is the timer X I/O pin.

This is the timer X output pin.

This is the timer Y I/O pin.

This is the timer Z output pin.

This is the timer C input pin.

These are the timer C output pins.

This is a transfer clock I/O pin.

These are serial data input pins.

These are serial data output pins.

This is a reference voltage input pin for A/D con-

verter.

These are analog input pins for A/D converter.

These are 8-bit CMOS I/O ports. Each port has an

input/output select direction register, allowing each

pin in that port to be directed for input or output indi-

vidually.

Any port set to input can select whether to use a pull-

up resistor or not by program.

P10 to P17 also function as LED drive ports.

These are input only pins.

1.6 Pin Description

Table 1.3 shows the pin description

Table 1.3 Pin description

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