Rev. 1.00
8
August 29, 2018
Rev. 1.00
9
August 29, 2018
HT45F6530
AC Voltage Regulator Flash MCU
HT45F6530
AC Voltage Regulator Flash MCU
Pin Description
With the exception of the power pins, all pins on the device can be referenced by their Port name,
e.g. PA0, PA1 etc., which refer to the digital I/O function of the pins. However these Port pins are
also shared with other function such as the Analog to Digital Converter, Timer Module pins etc.
The function of each pin is listed in the following table, however the details behind how each pin is
configured is contained in other sections of the datasheet.
Note that the pin description refers to the largest package size, as a result some pins may not exist on
smaller package types.
Pin Name
Function
OPT
I/T
O/T
Description
PA0/CTP0/VR1EXT/
INT0/OCDSDA/ICPDA
PA0
PAPU
PAWU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up and
wake-up
CTP0
PAS0
—
CMOS CTM0 output
VR1EXT
PAS0
AN
—
D/A Converter 1 reference voltage input
INT0
PAS0
INTEG
INTC0
ST
—
External Interrupt 0 input
OCDSDA
—
ST CMOS OCDS data/address, for EV chip only.
ICPDA
—
ST CMOS ICP data/address
PA1/AN5/VREF
PA1
PAPU
PAWU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up and
wake-up
AN5
PAS0
AN
—
A/D Converter external input channel
VREF
PAS0
AN
—
A/D Converter reference voltage input
PA2/CTP1/VR0EXT/
OCDSCK/ICPCK
PA2
PAPU
PAWU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up and
wake-up
CTP1
PAS0
—
CMOS CTM1 output
VR0EXT
PAS0
AN
—
D/A Converter 0 reference voltage input
OCDSCK
—
ST
—
OCDS clock pin, for EV chip only.
ICPCK
—
ST
—
ICP clock pin
PA3/AN4/VREFI
PA3
PAPU
PAWU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up and
wake-up
AN4
PAS0
AN
—
A/D Converter external input channel
VREFI
PAS0
AN
—
A/D Converter PGA input
PA4/AN3/INT1
PA4
PAPU
PAWU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up and
wake-up
AN3
PAS1
AN
—
A/D Converter external input channel
INT1
PAS1
INTEG
INTC2
ST
—
External Interrupt 1 input
PA5/AN2
PA5
PAPU
PAWU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up and
wake-up
AN2
PAS1
AN
—
A/D Converter external input channel
PA6/AN1
PA6
PAPU
PAWU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up and
wake-up
AN1
PAS1
AN
—
A/D Converter external input channel