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R8A66173SP Schematic ( PDF Datasheet ) - Renesas Technology

Teilenummer R8A66173SP
Beschreibung 4-CH 12-BIT PWM GENERATOR
Hersteller Renesas Technology
Logo Renesas Technology Logo 




Gesamt 13 Seiten
R8A66173SP Datasheet, Funktion
R8A66173SP
4-CH 12-BIT PWM GENERATOR
REJ03F0264-0100
Rev.1.00
Jan.24.2008
DESCRIPTION
R8A66173 has four 12-bit PWM (Pulse Width Modulation) circuits which are built by using the CMOS
process.
This IC controls PWM waveform by adjusting the “H” width according to serial data sent from MCU (Micro
Controller Unit) or other device. Each channel can be independently controlled.
High-resolution digital-analog (D-A) converter can be formed easily by connecting a low-pass filter (LPF)
circuit to the output pins of this circuit.
R8A66173 is the succession product of M66242.
www.DataSheet4FU.EcomATURES
Built-in four 12-bit high-resolution PWM circuits
Easy D-A conversion – Quick output waveform smoothing
Control by 1.22mV possible per step (VCC=5V range)
Serial data input
“H” level width setting type
4 channels controlled independently
All 4 channels reset by reset input (R), High-impedance status after reset
All 4 channels controlled by output control input (OC)
Settings take effect after ongoing cycle is completed
Output : CMOS 3-state output
Output current Io=±4mA (Vcc=5.0V range), Io=±2mA (Vcc=3.3V range)
Wide operating supply voltage range (Vcc=3.0~3.6V or Vcc=4.5~5.5V, single power supply)
Wide operating temperature range: Ta=-40oC~+85 oC
APPLICATION
Analog signal control in televisions and audio systems
Control of lamps, heaters and motors
For software servo in home appliances and industrial machinery
PIN CONFIGURATION (TOP VIEW)
CHIP SELECT
RESET
CS
R
WRITE CONTROL WR
SERIAL DATA INPUT SIN
WRITE CLOCK ScLK
OUTPUT CONTROL OC
GND
1
2
3
4
5
6
7
14 Vcc
13 PWM1
12 PWM2
OUTPUT
11 PWM3
10 PWM4
9
XOUT
CLOCK OUTPUT
8 XIN
CLOCK INPUT
REJ03F0264-0100 Rev.1.00 Jan.24.2008
Page 1 of 12






R8A66173SP Datasheet, Funktion
R8A66173SP
WR
SIN
SCLK
PWM output
www.DataSheet4U.com
b0 b1 b2 b3 b4 b5 b6 b7
Ongoing cycle
Fig.3 Serial Data Write Timing
PWM Setting Data
000 16
001 16
002 16
003 16
00E 16
00F 16
010 16
011 16
012 16
013 16
963 16
FFD 16
FFE 16
FFF 16
×150
×255
t0
×150
1 cycle
T = 2 ×212
fXIN
Fig.4 12-bit PWM Waveform Output Example
REJ03F0264-0100 Rev.1.00 Jan.24.2008
Page 6 of 12
Next cycle

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R8A66173SP pdf, datenblatt
R8A66173SP
PACKAGE OUTLINE
Package
14pin SOP
RENESAS Code
PRSP0014DG-A
Previous Code
14P2X-B
www.DataSheet4U.com
All trademarks and registered trademarks are the property of their respective owners.
REJ03F0264-0100 Rev.1.00 Jan.24.2008
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