HT66F017L View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT66F017L

0.9V Battery Flash A/D Type 8-Bit MCU

Holtek Semiconductor 

HT66F016L/HT66F017L

0.9V Battery Flash A/D Type 8-Bit MCU

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, however 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 description.

Pin Name

Function

OP I/T O/T Pin-Shared Mapping

PA0~PA7

Port A

PAWU

PAPU

ST

CMOS

—

PB0~PB4

Port B

PBPU ST CMOS

—

AN0~AN3

A/D Converter Input

ACERL AN — PA0~PA3

VREF

C-

A/D Converter Reference Input ADCR1 AN

Comparator Input

CPC AN

— PA1

— PA1

C+

Comparator Input

CPC AN — PA0

CX_0, CX_1, CX_2 Comparator Output

TCK0

TM0 Input

CPC

PRM

— CMOS PA2, PA3, PB2

ST — PA4 or PB1 or PA6 or PA7

TCK1

TM1 Input

PRM ST — PA3 or PA2

TP0

TM0 I/O

TP1

TM1 I/O

PRM

PRM

ST CMOS PA3 or PB0 or PA5 or PA2

ST CMOS PA4 or PB1 or PA6 or PA7

INT0

External Interrupt 0

INTC0

INTEG

ST

— PA3 or PA2

INT1

OSC1

External Interrupt 1

HXT Pin

INTC2

INTEG

ST

CO HXT

— PA5 or PA4

— PA6

OSC2

HXT Pin

CO — HXT PA5

ICPCK

ICPDA

ICP Clock Pin

ICP Data/Address Pin

— ST — PA7

— ST CMOS PA2

OCDSCK

OCDS Clock Pin

— ST — PA7

OCDSDA

LX

OCDS Data/Address Pin

— ST CMOS PA2

External Inductor Connection

Pin for DC/DC Converter

—

PWR

—

—

VOUT

DC/DC Converter Voltage

Output*

— PWR —

—

VDD

Power Supply*

— PWR —

—

AVDD

A/D Converter Power Supply* — PWR —

—

VSS

Ground**

— PWR —

—

AVSS

A/D Converter Ground**

— 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

*: The AVDD and VOUT pins are bonded together internally with VDD.

**: The AVSS pin is bonded together internally with VSS.

Rev. 1.00

9

July 04, 2013

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