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HT56R22 Datasheet(PDF) 8 Page - Holtek Semiconductor Inc

Part # HT56R22
Description  TinyPowerTM A/D Type 8-Bit OTP MCU with DAC
Download  127 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT56R22 Datasheet(HTML) 8 Page - Holtek Semiconductor Inc

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Pin Name
Function
OPT
I/T
O/T
Description
PB0/SCK0/SCL/SCOM0
PB0
PBPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
SCK0
CO
SIMCTL0
ST
CMOS
SPI1 serial clock input or output
SCL
CO
SIMCTL0
ST
¾
I
2C serial clock input
SCOM0
SCOMC
¾
SCOM
Software controlled 1/2 bias LCD COM
PB1/SCS0/SCOM1
PB1
PBPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
SCS0
CO
SIMCTL0
ST
CMOS
SPI0 select control pin
SCOM1
SCOMC
¾
SCOM
Software controlled 1/2 bias LCD COM
PB2/PCLK/SCOM2
PB2
PBPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
PCLK
CO
SIMCTL0
¾
CMOS
Peripheral clock output
SCOM2
SCOMC
¾
SCOM
Software controlled 1/2 bias LCD COM
PB3/PINT/SCOM3
PB3
PBPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
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
¾¾
Buzzer output
PB5/BZ
PB5
PBPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
BZ
CO
¾¾
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
PCPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
OSC1
CO
AN
¾
Oscillator pin
PC1/OSC2
PC1
PCPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
OSC2
CO
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
PCPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
AUD
CO
DACTRL
¾
AO
Audio output
PC7/RES
PC7
PCPU
ST
NMOS
General purpose I/O. Register enabled pull-up.
RES
CO
ST
¾
Reset input
PD0/PWM0/SDI0/SDA
PD0
PDPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
PWM0
PINMAP
¾
CMOS
PWM0 output
SDI0
CO
SIMCTL0
ST
¾
SPI0 serial data input
SDA
CO
SIMCTL0
ST
OD
I
2C data input or output
HT56R22/HT56R23/HT56R24/HT56R25/HT56R26
Rev. 1.30
8
December 26, 2014


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