R5F21143DSP View Datasheet(PDF) - Renesas Electronics

Part Name

Description

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R5F21143DSP

R8C/14 Group, R8C/15 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Renesas Electronics 

R8C/14 Group, R8C/15 Group

1. Overview

1.6 Pin Description

Table 1.5 lists the Pin Description and Table 1.6 lists the Pin Name Information by Pin Number.

Table 1.5 Pin Description

Function

Pin name

I/O type

Description

Power Supply Input VCC

VSS

I Apply 2.7V to 5.5V to the VCC pin. Apply 0V to

the VSS pin

Analog Power Supply AVCC

Input

AVSS

I Power supply input pins to A/D converter.

Connect AVCC to VCC. Apply 0V to AVSS.

Connect a capacitor between AVCC and AVSS.

Reset Input

RESET

I Input “L” on this pin resets the MCU

MODE

MODE

I Connect this pin to VCC via a resistor

Main Clock Input

Main Clock Output

XIN

XOUT

I These pins are provided for the main clock

O generation circuit I/O. Connect a ceramic

resonator or a crystal 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.

INT Interrupt

INT0, INT1, INT3

I INT interrupt input pins

Key Input Interrupt KI0 to KI3

I Key input interrupt input pins

Timer X

CNTR0

I/O Timer X I/O pin

CNTR0

O Timer X output pin.

Timer Z

TZOUT

O Timer Z output pin

Timer C

TCIN

I Timer C input pin

CMP0_0 to CMP0_2,

CMP1_0 to CMP1_2

O Timer C output pins.

Serial Interface

CLK0

I/O Transfer clock I/O pin.

RXD0

I Serial data input pin.

TXD0

O Serial data output 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.

Reference Voltage

Input

VREF

I Reference voltage input pin to A/D converter

Connect VREF to VCC

A/D Converter

AN8 to AN11

I Analog input pins to A/D converter

I/O Port

P1_0 to P1_7, P3_3

to P3_5, P3_7, P4_5

I/O These are CMOS I/O ports. Each port contains

an I/O select direction register, allowing each pin

in that port to be directed for input or output

individually.

Any port set to input can select whether to use a

pull-up resistor or not by program.

P1_0 to P1_3 also function as LED drive ports.

Input Port

P4_6, P4_7

I Port for input-only

I: Input O: Output

I/O: Input and output

Rev.2.10 Jan 19, 2006 Page 8 of 253

REJ09B0164-0210

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