FM8P73B datasheet(4/57 Pages) FEELING

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FM8P73B

Web site: http://www.feeling-tech.com.tw

Rev1.0 Nov 20, 2013

P.4/FM8P73B

FEELING

TECHNOLOGY

PIN DESCRIPTIONS

Name

I/O

Description

IOA0 ~ IOA5

I/O



Bi-direction I/O pin



Software controlled pull-high



A/D converter input



IOA0 is PWM1P output (by option, default)



IOA1 is PWM1N output (by option)

IOB0 ~ IOB2

I/O



Bi-direction I/O pin with system wake-up/pin change interrupt function



Software controlled pull-high



A/D converter input



IOB1 is PWM1P output(by option)



IOB2 is External CLK input for Timer

IOB3/RSTB



Input pin only with system wake-up/pin change interrupt function; voltage on this

pin must not exceed VDD.



System clear (RESET) input. This pin is an active low RESET to the device

IOB4/OSCO

I/O



Bi-direction I/O port with system wake-up/pin change interrupt function



Software controlled pull-high



Oscillator output (HF, XT, LF, ERC mode)

IOB5/OSCI

I/O



Bi-direction I/O port with system wake-up/pin change interrupt function (IRC mode)



Software controlled pull-high



Oscillator input (HF, XT, LF, ERC mode)

IOB6 ~ IOB7

I/O



Bi-direction I/O pin with system wake-up/pin change interrupt function



Software controlled pull-high



A/D converter input

ADC module reference input, voltage on this pin must not exceed VDD.

VDD

Positive supply

VSS

Ground

Legend: I=input, O=output, I/O=input/output

Note: Please refer to 2.2 for detail IO type description

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