R8C23 datasheet(3/52 Pages) RENESAS

3 / 52 page

R8C/22 Group, R8C/23 Group

1. Overview

Rev.1.10 Mar 16, 2007

Page 3 of 48

REJ03B0097-0110

NOTES:

1. When using options, be sure to inquire about the specification.

2. I2C bus is a registered trademark of Koninklijke Philips Electronics N.V.

Table 1.2

Functions and Specifications for R8C/23 Group

Item

Specification

CPU

Number of fundamental instructions 89 instructions

Minimum instruction execution time 50 ns (f(XIN) = 20 MHz, VCC = 3.0 to 5.5 V)

100 ns (f(XIN) = 10 MHz, VCC = 2.7 to 5.5 V)

Operating mode

Single-chip

Address space

1 Mbyte

Memory capacity

Refer to Table 1.4 Product Information of R8C/23 Group

Peripheral

Function

Ports

I/O ports: 41 pins, Input port: 3 pins

Timers

Timer RA: 8 bits x 1 channel,

Timer RB: 8 bits x 1 channel

(Each timer equipped with 8-bit prescaler)

Timer RD: 16 bits x 2 channel

(Circuits of input capture and output compare)

Timer RE: With compare match function

Serial interface

1 channel (UART0)

Clock synchronous I/O, UART

1 channel (UART1)

UART

Clock synchronous serial interface

1 channel

I2C bus interface(2), Clock synchronous serial I/O with chip

select

LIN module

Hardware LIN: 1 channel

(Timer RA, UART0)

CAN module

1 channel with 2.0B specification: 16 slots

A/D converter

10-bit A/D converter: 1 circuit, 12 channels

Watchdog timer

15 bits x 1 channel (with prescaler)

Reset start selectable

Interrupts

Internal: 14 sources, External: 6 sources, Software: 4 sources,

Priority level: 7 levels

Clock generation circuits

2 circuits

XIN clock generation circuit (with on-chip feedback resistor)

On-chip oscillator (high speed, low speed)

High-speed on-chip oscillator has frequency adjustment

function.

Oscillation stop detection

function

Stop detection of XIN clock oscillation

Voltage detection circuit

On-chip

Power-on reset circuit include

On-chip

Electric

Characteristics

Supply voltage

VCC = 3.0 to 5.5 V (f(XIN) = 20 MHz)(D, J version)

VCC = 3.0 to 5.5 V (f(XIN) = 16 MHz)(K version)

VCC = 2.7 to 5.5 V (f(XIN) = 10 MHz)

Current consumption

Typ. 12.5 mA (VCC = 5 V, f(XIN) = 20 MHz, High-speed on-

chip oscillator stopping)

Typ. 6.0 mA (VCC = 5 V, f(XIN) = 10 MHz, High-speed on-chip

oscillator stopping)

Flash Memory

Programming and erasure voltage

VCC = 2.7 to 5.5 V

Programming and erasure endurance 10,000 times (data flash)

1,000 times (program ROM)

Operating Ambient Temperature

-40 to 85

°C

-40 to 125

°C (option(1))

Package

48-pin mold-plastic LQFP

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