ABOV SEMICONDUCTOR MC81F4204 - Page 22

MC81F4204
22 April 24, 2012 Ver.1.41
Pin Names I/O Pin Description
Alternative
Functions
AN6 R11/EXT7/
PWM2O
AN7 R12/EXT8/
PWM3O/BUZO
AN8 R13/EXT9
AN14
I/O ADC input pins
R31
SCK I/O Serial clock input R04/AN2/EC1/
EXT2
SI I/O Serial data input
R05/AN3/EXT3/
T1O/PWM1O
SO I/O Serial data output R06/AN4/EC2/
EXT4
RESETB
I System reset pin R35
XIN – R34
XOUT –
Main oscillator pins
R33
VDD – –
VSS –
Power input pins
–
VREF – A/D converter reference voltage R10/EXT6