DESCRIPTION

R8A66170 is a programmable 4-channel PWM generator produced using the silicon gate CMOS process.

R8A66170 can connect directly to the MPU data bus, and consists of a 16-bit prescaler and a PWM counter.

The pulse output includes three kinds of modes, allowing the independent control of each channel.

R8A66170 provides a software servo system in combination with the A-D function and the timer function of a one-chip microcomputer. R8A66170 is a succession product of M66240.

FEATURES

? 4-channel individually controllable

? Built-in three kind of pulse output modes

? PWM repetitive frequency: 50 kHz (max.) (Mode 0, 8-bit resolution, fxin/255 at prescaler setting = 0)

? Output polarity selection possible

? External triggering possible

? The output after reset is in the high impedance state.

? Change of mode setting becomes effective after the current cycle.

? High output current : Io = ±24 mA (VCC = 5.0V)

? Wide operating power voltage range (VCC = 5.0V or 3.3V single power supply)

? Wide operating temperature range (Ta = -40~85 oC)

APPLICATION

? Control of DC motors and stepping motors

? Control of Heater phase controllers

? Software servos for office automation equipment , and industrial equipment