R8C/2E Group, R8C/2F Group 1. Overview
Rev.1.00 Dec 14, 2007 Page 2 of 39
REJ03B0222-0100
1.1.2 Specifications
Tables 1.1 and 1.2 outlines the Specifications for R8C/2E Group and Tables 1.3 and 1.4 outlines the
Specifications for R8C/2F Group.
Table 1.1 Specifications for R8C/2E Group (1)
Item Function Specification
CPU Central
processing unit
R8C/Tiny series core
• 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)
• Multiplier: 16 bits × 16 bits → 32 bits
• Multiply-accumulate instruction: 16 bits × 16 bits + 32 bits → 32 bits
• Operation mode: Single-chip mode (address space: 1 Mbyte)
Memory ROM, RAM Refer to Table 1.5 Product List for R8C/2E Group.
Power Supply
Voltage
Detection
Voltage
detection circuit
• Power-on reset
• Voltage detection 2
I/O Ports Programmable
I/O ports
• Input-only: 3 pins
• CMOS I/O ports: 25, selectable pull-up resistor
• High current drive ports: 8
Clock Clock generation
circuits
2 circuits: XIN 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: 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, high-speed on-chip
oscillator, low-speed on-chip oscillator), wait mode, stop mode
Interrupts • External: 4 sources, Internal: 13 sources, Software: 4 sources
• Priority levels: 7 levels
Watchdog Timer 15 bits × 1 (with prescaler), reset start selectable
Timer Timer RA 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 measurement mode
Timer RB 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 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)
Timer RE 8 bits × 1
Output compare mode
Serial
Interface
UART0 Clock synchronous serial I/O/UART × 1
LIN Module Hardware LIN: 1 (timer RA, UART0)
A/D Converter 10-bit resolution × 12 channels, includes sample and hold function
D/A Converter 8-bit resolution × 2 circuits
Comparator 2 circuits
