HT45F23 データシートの表示（PDF） - Holtek Semiconductor
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HT45F23 Datasheet PDF : 152 Pages
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HT45F23/HT45F43
8-Bit Flash MCU with Op Amps & Comparators
Pin Description
Pin Name
PA0/CNP/SCOM0
PA1/C1OUT/TC0
PA2/A1P/C2OUT
PA3/A1N/INT0
PA4/A1E/TC1
PA5/A2P/PFD
PA6/A2N/BZ
PA7/A2E/BZ
PB0/SDO/INT1
PB1/SDI/SDA
Function OPT
I/T
O/T
Description
PAPU
General purpose I/O. Register enabled pull-up,
PA0
PAWU ST CMOS wake-up.
CNP CMP1C1 CMPI ¾ Comparator input pin
SCOM0 LCDC ¾ SCOM Software controlled 1/2 bias LCD COM
PA1
PAPU
ST CMOS General purpose I/O. Register enabled pull-up,
PAWU
wake-up.
C1OUT CMP1C1 ¾ CMPO Comparator 1 output pin
TC0
¾
ST
¾ External Timer0 clock input
PAPU
General purpose I/O. Register enabled pull-up,
PA2
PAWU ST CMOS wake-up.
A1P OPA1C1 OPAI ¾ OPA1 non-inverting input pin
C2OUT CMP2C1 ¾ CMPO Comparator 2 output pin
PA3
PAPU
ST CMOS General purpose I/O. Register enabled pull-up,
PAWU
wake-up.
A1N OPA1C1 OPAI ¾ OPA1 inverting input pin
INT0
¾
ST
¾ External interrupt 0 input pin
PAPU
General purpose I/O. Register enabled pull-up and
PA4
PAWU ST CMOS wake-up.
A1E OPA1C1 ¾ OPAO OPA1 output pin
TC1
¾
ST
¾ External Timer1 clock input
PA5
PAPU
PAWU
ST
CMOS
General purpose I/O. Register enabled pull-up and
wake-up.
A2P OPA2C1 OPAI ¾ OPA2 non-inverting input pin
PFD
MISC
¾ CMOS PFD output
PAPU
General purpose I/O. Register enabled pull-up and
PA6
PAWU ST CMOS wake-up.
A2N OPA2C1 OPAI ¾ OPA2 inverting input pin
BZ
BPCTL ¾ CMOS Buzzer output
PA7
PAPU
ST CMOS General purpose I/O. Register enabled pull-up and
PAWU
wake-up.
A2E OPA2C1 ¾ OPAO OPA2 output pin
BZ
BPCTL ¾ CMOS Complementary buzzer output
PBPU
CMOS General purpose I/O. Register enabled pull-up and
PB0
MISC
ST NMOS output NMOS structure.
SDO
¾
¾ CMOS SPI data output
INT1
¾
ST
¾ External interrupt 1 input pin
PB1
PBPU
ST CMOS General purpose I/O. Register enabled pull-up and
MISC
NMOS output NMOS structure.
SDI
SDA
¾
ST
¾ SPI data input
¾
ST NMOS I2C data
Rev. 1.20
10
September 15, 2011
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