HT56R23(2010) 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT56R23
(Rev.:2010)

TinyPower™ A/D Type 8-Bit OTP MCU with DAC

Holtek Semiconductor 

HT56R22/HT56R23/HT56R24/HT56R25/HT56R26

Pin Name

Function OPT

I/T O/T

Description

PB0

PBPU ST CMOS General purpose I/O. Register enabled pull-up.

PB0/SCK0/SCL/SCOM0

SCK0

SCL

CO

ST CMOS SPI1 serial clock input or output

SIMCTL0

CO

ST

SIMCTL0

¾ I2C serial clock input

SCOM0 SCOMC ¾ SCOM Software controlled 1/2 bias LCD COM

PB1

PBPU ST CMOS General purpose I/O. Register enabled pull-up.

PB1/SCS0/SCOM1

SCS0

CO

ST CMOS SPI0 select control pin

SIMCTL0

SCOM1 SCOMC ¾ SCOM Software controlled 1/2 bias LCD COM

PB2

PBPU ST CMOS General purpose I/O. Register enabled pull-up.

PB2/PCLK/SCOM2

PCLK

CO

¾

SIMCTL0

CMOS Peripheral clock output

SCOM2 SCOMC ¾ SCOM Software controlled 1/2 bias LCD COM

PB3

PBPU ST CMOS General purpose I/O. Register enabled pull-up.

PB3/PINT/SCOM3

PINT

¾

ST

¾ Peripheral interrupt input, falling edge trigger

SCOM3 SCOMC ¾ SCOM Software controlled 1/2 bias LCD COM

PB4/BZ

PB4

PBPU ST CMOS General purpose I/O. Register enabled pull-up.

BZ

CO

¾

¾ Buzzer output

PB5/BZ

PB5

PBPU ST CMOS General purpose I/O. Register enabled pull-up.

BZ

CO

¾

¾ Buzzer bar output

PB6/TC2

PB6

PBPU ST CMOS General purpose I/O. Register enabled pull-up.

TC2

¾

ST

¾ External Timer 2 clock input

PB7

PB7

PBPU ST CMOS General purpose I/O. Register enabled pull-up.

PC0/OSC1

PC0

OSC1

PCPU

CO

ST CMOS General purpose I/O. Register enabled pull-up.

AN

¾ Oscillator pin

PC1/OSC2

PC1

OSC2

PCPU

CO

ST CMOS General purpose I/O. Register enabled pull-up.

¾ CMOS Oscillator pin

PC2/XT1

PC2

PCPU ST CMOS General purpose I/O. Register enabled pull-up.

XT1

CO

¾ CMOS Oscillator pin

PC3/XT2

PC3

PCPU ST CMOS General purpose I/O. Register enabled pull-up.

XT2

CO

¾ LXT Oscillator pin

PC4~PC5

PCn

PCPU ST CMOS General purpose I/O. Register enabled pull-up.

PC6/AUD

PC6

AUD

PCPU ST CMOS General purpose I/O. Register enabled pull-up.

CO

¾

DACTRL

AO Audio output

PC7/RES

PC7

RES

PCPU

CO

ST NMOS General purpose I/O. Register enabled pull-up.

ST

¾ Reset input

PD0

PDPU ST CMOS General purpose I/O. Register enabled pull-up.

PWM0 PINMAP ¾ CMOS PWM0 output

PD0/PWM0/SDI0/SDA

SDI0

CO

ST

SIMCTL0

¾ SPI0 serial data input

SDA

CO

ST

SIMCTL0

OD I2C data input or output

Rev. 1.00

8

March 11, 2010

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