HT66F016(2012) View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT66F016 Datasheet PDF : 116 Pages
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HT66F016/HT66F017/HT68F016/HT68F017
Pin Description
With the exception of the power pins, all pins on these devices can be referenced by their Port name, e.g. PA.0, PA.1
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, how-
ever the details behind how each pin is configured is contained in other sections of the datasheet.
The following tables only include the pins which are directly related to the MCU. The pin descriptions of the additional
peripheral functions are located at the end of the datasheet along with the relevant peripheral function functional de-
scription.
HT66F016, HT68F016
Pin Name
Function
PA0~PA7
Port A
PB0~PB5
AN0~AN3
VREF
C-
C+
CX
TCK1
Port B
A/D converter input
A/D converter reference input
Comparator input
Comparator input
Comparator output
TM1 input
TP1
TM1 I/O
INT0
External Interrupt 0
INT1
OSC1
OSC2
VDD
VSS
External Interrupt 1
HXT pin
HXT pin
Power supply
Ground
OP
PAWU
PAPU
PBPU
ACERL
ADCR1
CPC
PRM
PRM
TMPC
INTC0
INTEG
INTC2
INTEG
CO
CO
¾
¾
I/T
ST
ST
AN
AN
AN
AN
¾
ST
ST
ST
ST
HXT
¾
PWR
PWR
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
CMOS: CMOS output
AN: Analog input pin
HXT: High frequency crystal oscillator
HT68F016 doesn¢t have AN0~AN3, VREF pin.
O/T
Pin-Shared Mapping
CMOS ¾
CMOS
¾
¾
¾
¾
CMOS
¾
¾
PA0~PA3
PA1
PA1
PA0
PA2
PA2 or PA3
CMOS PA4, PA6, PA7 or PB1
¾
PA3 or PA2
¾
¾
HXT
¾
¾
PA5 or PA4
PA6
PA5
¾
¾
Rev. 1.00
10
May 14, 2012
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