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1.1 Features

Ultra-low power consumption technology

? VDD = single power supply voltage of 1.6 to 5.5 V

? HALT mode

? STOP mode

? SNOOZE mode

RL78 CPU core

? CISC architecture with 3-stage pipeline

? Minimum instruction execution time: Can be changed

from high speed (0.03125 μs: @ 32 MHz operation

with high-speed on-chip oscillator) to ultra-low speed

(30.5 μs: @ 32.768 kHz operation with subsystem

clock)

? Address space: 1 MB

? General-purpose registers: (8-bit register × 8) × 4

banks

? On-chip RAM: 2 to 32 KB

Code flash memory

? Code flash memory: 16 to 512 KB

? Block size: 1 KB

? Prohibition of block erase and rewriting (security

function)

? On-chip debug function

? Self-programming (with boot swap function/flash shield

window function)

Data Flash Memory

? Data flash memory: 4 KB to 8 KB

? Back ground operation (BGO): Instructions can be

executed from the program memory while rewriting the

data flash memory.

? Number of rewrites: 1,000,000 times (TYP.)

? Voltage of rewrites: VDD = 1.8 to 5.5 V

High-speed on-chip oscillator

? Select from 32 MHz, 24 MHz, 16 MHz, 12 MHz, 8 MHz,

6 MHz, 4 MHz, 3 MHz, 2 MHz, and 1 MHz

? High accuracy: +/- 1.0 (VDD = 1.8 to 5.5 V, TA = -20

to +85°C)

Operating ambient temperature

? TA = -40 to +85°C (A: Consumer applications, D:

Industrial applications )

? TA = -40 to +105°C (G: Industrial applications)

Power management and reset function

? On-chip power-on-reset (POR) circuit

? On-chip voltage detector (LVD) (Select interrupt and

reset from 14 levels)

DMA (Direct Memory Access) controller

? 2/4 channels

? Number of clocks during transfer between 8/16-bit

SFR and internal RAM: 2 clocks

Multiplier and divider/multiply-accumulator

? 16 bits × 16 bits = 32 bits (Unsigned or signed)

? 32 bits ÷ 32 bits = 32 bits (Unsigned)

? 16 bits × 16 bits + 32 bits = 32 bits (Unsigned or

signed)

Serial interface

? CSI: 2 to 8 channels

? UART/UART (LIN-bus supported): 2 to 4 channels

? I2C/Simplified I2C communication: 3 to 10 channels

Timer

? 16-bit timer: 8 to 16 channels

? 12-bit interval timer: 1 channel

? Real-time clock: 1 channel (calendar for 99 years,

alarm function, and clock

correction function)

? Watchdog timer: 1 channel (operable with the

dedicated low-speed on-chip

oscillator)

A/D converter

? 8/10-bit resolution A/D converter (VDD = 1.6 to 5.5 V)

? Analog input: 6 to 26 channels

? Internal reference voltage (1.45 V) and temperature

sensor Note 1

I/O port

? I/O port: 16 to 120 (N-ch open drain I/O [withstand

voltage of 6 V]: 0 to 4, N-ch open drain I/O

[VDD withstand voltage Note 2/EVDD withstand

voltage Note 3]: 5 to 25)

? Can be set to N-ch open drain, TTL input buffer, and

on-chip pull-up resistor

? Different potential interface: Can connect to a 1.8/2.5/3

V device

? On-chip key interrupt function

? On-chip clock output/buzzer output controller

Others

? On-chip BCD (binary-coded decimal) correction circuit