R8CL3AB datasheet(6/89 Pages) RENESAS

6 / 89 page

1. Overview

REJ03B0243-0030 Rev.0.30

Jan 21, 2009

Page 4 of 76

R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,

R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group

Under development Preliminary specification

Specifications in this manual are tentative and subject to change.

1.1.3

Specifications

Tables 1.5 to 1.7 list the specifications.

Table 1.5

Specifications (1)

Item

Function

Specification

CPU

Central processing unit

R8C CPU core

• Number of fundamental instructions: 89

• Minimum instruction execution time:

50 ns (f(XIN) = 20 MHz, VCC = 2.7 to 5.5 V)

200 ns (f(XIN) = 5 MHz, VCC = 1.8 to 5.5 V)

• Multiplier: 16 bits × 16 bits

→ 32 bits

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

→ 32 bits

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

Memory

ROM/RAM

Data flash

Refer to Tables 1.8 to 1.15 Product Lists.

Power

Supply

Voltage

Detection

Voltage detection circuit

• Power-on reset

• Voltage detection 3 (detection level of voltage detection 0 and voltage

detection 1 selectable)

I/O Ports

Programmable

I/O ports

R8C/L35A Group

R8C/L35B Group

• CMOS I/O ports: 41, selectable pull-up resistor

• High current drive ports: 5

R8C/L36A Group

R8C/L36B Group

• CMOS I/O ports: 52, selectable pull-up resistor

• High current drive ports: 8

R8C/L38A Group

R8C/L38B Group

• CMOS I/O ports: 68, selectable pull-up resistor

• High current drive ports: 8

R8C/L3AA Group

R8C/L3AB Group

• CMOS I/O ports: 88, selectable pull-up resistor

• High current drive ports: 16

Clock

Clock generation circuits

4 circuits: XIN clock oscillation circuit

XCIN clock oscillation circuit (32 kHz)

High-speed on-chip oscillator (with frequency adjustment function)

Low-speed on-chip oscillator

• Oscillation stop detection:

XIN clock oscillation stop detection function

• Frequency divider circuit:

Division ratio selectable from 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, power-off mode

Real-time clock (timer RE)

Interrupts

R8C/L35A Group

R8C/L35B Group

• Number of interrupt vectors: 69

• External Interrupt: 9 (INT × 5, key input × 4)

• Priority levels: 7 levels

R8C/L36A Group

R8C/L36B Group

• Number of interrupt vectors: 69

• External Interrupt: 12 (INT × 8, key input × 4)

• Priority levels: 7 levels

R8C/L38A Group

R8C/L38B Group

• Number of interrupt vectors: 69

• External Interrupt: 16 (INT × 8, key input × 8)

• Priority levels: 7 levels

R8C/L3AA Group

R8C/L3AB Group

• Number of interrupt vectors: 69

• External Interrupt: 16 (INT × 8, key input × 8)

• Priority levels: 7 levels

Watchdog Timer

• 14 bits × 1 (with prescaler)

• Selectable reset start function

• Selectable low-speed on-chip oscillator for watchdog timer

DTC (Data Transfer Controller)

• 1 channel

• Activation sources: 38

• Transfer modes: 2 (normal mode, repeat mode)

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