R8A66170SP Datasheet | Renesas

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 bination with the A-D function and the timer function of a one-chip microputer. R8A66170 is a succession product of M66240. FEATURES .. - - - - - - - - - - 4-channel individually controllable Built-in three kind of pulse output modes PWM repetitive frequency: 50 k Hz (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 bees effective after the current cycle. High output current : Io = ±24 m A (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 PIN CONFIGURATION (TOP VIEW) D0 D1 D2 Data bus inputs D3 D4 D5 D6 D7 Write control input mand/Data control input Chip select input WR C/D CS GND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 Vcc PWM1 TRG1 PWM2 TRG2 PWM3 TRG3 PWM4 TRG4 PWM output 1 Trigger input 1 PWM output 2 Trigger input 2 PWM output 3 Trigger input 3 PWM output 4 Trigger input 4 RESET Reset input X1 X2 Clock input Clock output REJ03F0272-0100 Rev.1.00 Apr.01.2008 Page 1 of 20 R8A66170DD/SP FUNCTION Four separate 16-bit prescalers and 16-bit PWM counters can be separately programmed by the control instruction from the MPU. The output is made in one of three modes (Mode 0, Mode 1, and Mode 2). In Mode0, setting only the value of H width repeatedly outputs the set pulse...