HT68F03T3

Pin Name

Function

OP

I/T

O/T

Pin-Shared Mapping

PA0~PA7

Port A

PAWU

PAPU

ST

CMOS

¾

C-

Comparator input

CPC

AN

¾

PA1

C+

Comparator input

AN

¾

PA0

CX

Comparator output

¾

CMOS

PA2

TCK0

TM0 input

PRM

ST

¾

PA4, PA6 or PA7

TCK1

TM1 input

PRM

ST

¾

PA3 or PA7

TP0

TM0 I/O

PRM

ST

CMOS

PA3, PA5 or PA2

TP1

TM1 I/O

PRM

ST

CMOS

PA4, PA6 or PA7

INT

External interrupt

PRM

ST

¾

PA3 or PA7

OSC1

HXT/ERC/LXT pin

CO

HXT/LXT

¾

PA6

OSC2

HXT/LXT pin

CO

¾

HXT/LXT

PA5

RES

Reset input

CO

ST

¾

PA7

VDD

MCU power supply

¾

PWR

¾¾

VSS

MCU ground

¾

PWR

¾¾

PAOUT

RF power amplifier output

¾

PWR

NSO

¾

DOUT

Data Output

PAWU

PAPU

ST

CMOS

PA4

CREF

RF transmitter synnchronising signal

¾¾

CMOS

¾

XOUT

RF transmitter crystal pin

¾¾

HXT

¾

XIN

RF transmitter crystal pin

¾

HXT

¾¾

AVDD

RF transmitter power supply

¾

PWR

¾¾

AVSS

RF transmitter ground

¾

PWR

¾¾

Note:

I/T: Input type; O/T: Output type

OP: Optional by configuration option (CO) or register option

PWR: Power; CO: Configuration option; ST: Schmitt Trigger input; NS: non-standard input

CMOS: CMOS output; NMOS: NMOS output

SCOM: Software controlled LCD COM; AN: Analog input pin

HXT: High frequency crystal oscillator

LXT: Low frequency crystal oscillator

NSO: Non-standard output

HT66F03T3/HT68F03T3

8-Bit Flash MCU with RF Transmitter

Rev. 1.30

5

July 4, 2011