Rev. 1.71
10
April 11, 2017
Rev. 1.71
11
April 11, 2017
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
Pin Name
Function
OPT
I/T
O/T
Description
PA7/[INT]/
STCK0/RES/
ICPCK
PA7
PAWU
PAPU
ST
CMOS
General purpose I/O. Register enabled pull-up and
wake-up
INT
IFS0
ST
—
External interrupt input
STCK0
IFS0
ST
—
TM0 (STM) clock input
RES
RSTC
ST
—
External reset input
ICPCK
—
ST
CMOS
ICP Clock Line
VDD
VDD
—
PWR
—
Digital positive power supply
AVDD
AVDD
—
PWR
—
Analog positive power supply
VSS
VSS
—
PWR
—
Digital negative power supply
AVSS
AVSS
—
PWR
—
Analog negative power supply
OCDSCK
OCDSCK
—
ST
—
On Chip Debug System Clock Line (OCDS EV only)
OCDSDA
OCDSDA
—
ST
CMOS
On Chip Debug System Data Line (OCDS EV only)
HT66F003
Pin Name
Function
OPT
I/T
O/T
Description
PA0/[STP0I]/
AN0
/OCDSDA/
ICPDA
PA0
PAWU
PAPU
PASR
ST
CMOS
General purpose I/O. Register enabled pull-up and
wake-up
STP0I
PASR
IFS0
ST
—
TM0 (STM) input
AN0
PASR
AN
—
ADC input channel 0
OCDSDA
—
ST
CMOS
On Chip Debug System Data Line (OCDS EV only)
ICPDA
—
ST
CMOS
ICP Data Line
PA1/AN1/VREF
PA1
PAWU
PAPU
PASR
ST
CMOS
General purpose I/O. Register enabled pull-up and
wake-up
AN1
PASR
AN
—
ADC input channel 1
VREF
PASR
AN
—
ADC VREF Input
PA2/[INT]/
[STCK0]/AN2
/OCDSCK/
ICPCK
PA2
PAWU
PAPU
PASR
ST
CMOS
General purpose I/O. Register enabled pull-up and
wake-up
INT
PASR
IFS0
ST
—
External interrupt input
STCK0
IFS0
ST
—
TM0 (STM) clock input
AN2
PASR
AN
—
ADC input channel 2
OCDSCK
—
ST
—
On Chip Debug System Clock Line (OCDS EV
only)
ICPCK
—
ST
CMOS
ICP Clock Line
PA3/INT/
STCK0/AN3
PA3
PAWU
PAPU
PASR
ST
CMOS
General purpose I/O. Register enabled pull-up and
wake-up
INT
PASR
IFS0
ST
—
External interrupt input
STCK0
IFS0
ST
—
TM0 (STM) clock input
AN3
PASR
AN
—
ADC input channel 3
PA4/[INT]/
PTCK1/STP0
PA4
PAWU
PAPU
PASR
ST
CMOS
General purpose I/O. Register enabled pull-up and
wake-up
INT
PASR
IFS0
ST
—
External interrupt input
PTCK1
PASR
IFS0
ST
—
TM1 (PTM) clock input
STP0
PASR
—
CMOS
TM0 (STM) output