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R5F212A7SDFP

R8C/2A Group, R8C/2B Group RENESAS MCU

Renesas Electronics 

R8C/2A Group, R8C/2B Group

1. Overview

1.1.2 Specifications

Tables 1.1 and 1.2 outlines the Specifications for R8C/2A Group and Tables 1.3 and 1.4 outlines the

Specifications for R8C/2B Group.

Table 1.1 Specifications for R8C/2A Group (1)

Item

CPU

Function

Specification

Central processing R8C/Tiny series core

unit

• Number of fundamental instructions: 89

• 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)

200 ns (f(XIN) = 5 MHz, VCC = 2.2 to 5.5 V)

• Multiplier: 16 bits × 16 bits → 32 bits

• Multiply-accumulate instruction: 16 bits × 16 bits + 32 bits → 32 bits

Memory

ROM, RAM

Power Supply Voltage detection

Voltage

circuit

Detection

• Operation mode: Single-chip mode (address space: 1 Mbyte)

Refer to Table 1.5 Product List for R8C/2A Group.

• Power-on reset

• Voltage detection 2

I/O Ports

Programmable I/O • Input-only: 2 pins

ports

• CMOS I/O ports: 55, selectable pull-up resistor

Clock

• High current drive ports: 8

Clock generation 3 circuits: XIN clock oscillation circuit (with on-chip feedback resistor),

circuits

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

(high-speed on-chip oscillator has a frequency adjustment function),

XCIN clock oscillation circuit (32 kHz)

• Oscillation stop detection: XIN clock oscillation stop detection function

• Frequency divider circuit: Dividing selectable 1, 2, 4, 8, and 16

• Low power consumption modes:

Standard operating mode (high-speed clock, low-speed clock, high-speed

on-chip oscillator, low-speed on-chip oscillator), wait mode, stop mode

Real-time clock (timer RE)

Interrupts

Watchdog Timer

Timer

Timer RA

• External: 5 sources, Internal: 23 sources, Software: 4 sources

• Priority levels: 7 levels

15 bits × 1 (with prescaler), reset start selectable

8 bits × 1 (with 8-bit prescaler)

Timer mode (period timer), pulse output mode (output level inverted every

period), event counter mode, pulse width measurement mode, pulse period

Timer RB

measurement mode

8 bits × 1 (with 8-bit prescaler)

Timer mode (period timer), programmable waveform generation mode (PWM

output), programmable one-shot generation mode, programmable wait one-

shot generation mode

Timer RC

Timer RD

16 bits × 1 (with 4 capture/compare registers)

Timer mode (input capture function, output compare function), PWM mode

(output 3 pins), PWM2 mode (PWM output pin)

16 bits × 2 (with 4 capture/compare registers)

Timer mode (input capture function, output compare function), PWM mode

(output 6 pins), reset synchronous PWM mode (output three-phase

waveforms (6 pins), sawtooth wave modulation), complementary PWM mode

(output three-phase waveforms (6 pins), triangular wave modulation), PWM3

mode (PWM output 2 pins with fixed period)

Timer RE

8 bits × 1

Real-time clock mode (count seconds, minutes, hours, days of week), output

compare mode

Timer RF

16 bits × 1 (with capture/compare register pin and compare register pin)

Input capture mode, output compare mode

Rev.2.10 Nov 26, 2007 Page 2 of 60

REJ03B0182-0210

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