R8C datasheet(2/49 Pages) RENESAS

2 / 49 page

R8C/1A Group, R8C/1B Group

1. Overview

Rev.1.40

Dec 08, 2006

Page 2 of 45

REJ03B0144-0140

1.2

Performance Overview

Table 1.1 outlines the Functions and Specifications for R8C/1A Group and Table 1.2 outlines the

Functions and Specifications for R8C/1B Group.

NOTE:

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

2. Please contact Renesas Technology sales offices for the Y version.

Table 1.1

Functions and Specifications for R8C/1A 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

See Table 1.3 Product Information for R8C/1A Group

Peripheral

Functions

Ports

I/O ports: 13 pins (including LED drive port)

Input port: 3 pins

LED drive ports

I/O ports: 4 pins

Timers

Timer X: 8 bits × 1 channel, timer Z: 8 bits × 1 channel

(Each timer equipped with 8-bit prescaler)

Timer C: 16 bits × 1 channel

(Input capture and output compare circuits)

Serial interfaces

1 channel

Clock synchronous serial I/O, UART

1 channel

UART

Clock synchronous serial interface 1 channel

I2C bus Interface(1)

Clock synchronous serial I/O with chip select (SSU)

A/D converter

10-bit A/D converter: 1 circuit, 4 channels

Watchdog timer

15 bits × 1 channel (with prescaler)

Reset start selectable, count source protection mode

Interrupts

Internal: 11 sources, External: 4 sources, Software: 4 sources,

Priority levels: 7 levels

Clock generation circuits

2 circuits

• Main clock oscillation circuit (with on-chip feedback resistor)

• On-chip oscillator (high speed, low speed)

High-speed on-chip oscillator has a frequency adjustment

function

Oscillation stop detection function

Main clock oscillation stop detection function

Voltage detection circuit

On-chip

Power-on reset circuit

On-chip

Electric

Characteristics

Supply voltage

VCC = 3.0 to 5.5 V (f(XIN) = 20 MHz)

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

Current consumption

Typ. 9 mA (VCC = 5.0 V, f(XIN) = 20 MHz, A/D converter stopped)

Typ. 5 mA (VCC = 3.0 V, f(XIN) = 10 MHz, A/D converter stopped)

Typ. 35

µA (VCC = 3.0 V, wait mode, peripheral clock off)

Typ. 0.7

µA (VCC = 3.0 V, stop mode)

Flash Memory

Programming and erasure voltage

VCC = 2.7 to 5.5 V

Programming and erasure

endurance

100 times

Operating Ambient Temperature

-20 to 85

°C

-40 to 85

°C (D version)

-20 to 105

°C (Y version) (2)

Package

20-pin molded-plastic LSSOP

20-pin molded-plastic SDIP

28-pin molded-plastic HWQFN

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