R8A66170DD Datasheet, PDF (1/21 Pages) Renesas Technology Corp – 4-CH 16-BIT PWM GENERATOR

R8A66170DD/SP
4-CH 16-BIT PWM GENERATOR
REJ03F0272-0100
Rev. 1.00
Apr.01.2008
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
PIN CONFIGURATION (TOP VIEW)
D0
1
D1
2
D2
3
D3
4
Data bus inputs
D4
5
D5
6
D6
7
D7
8
Write control input
WR
9
Command/Data control input C / D
10
Chip select input
CS
11
GND
12
24
Vcc
23
PWM1 PWM output 1
22
TRG1 Trigger input 1
21
PWM2 PWM output 2
20
TRG2 Trigger input 2
19
PWM3 PWM output 3
18
TRG3 Trigger input 3
17
PWM4 PWM output 4
16
TRG4 Trigger input 4
15
RESET Reset input
14
X1
Clock input
13
X2
Clock output
REJ03F0272-0100 Rev.1.00 Apr.01.2008
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