HT45F23A View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT45F23A Datasheet PDF : 148 Pages
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HT45F23A
8-Bit Flash MCU with Op Amps & Comparators
Pin Name Function OPT I/T O/T
Description
PA5/A2P/PFD
PA5
PAPU
PAWU
ST CMOS General purpose I/O. Register enabled pull-up and wake-up.
A2P OPA2C1 OPAI — OPA2 non-inverting input pin
PFD MISC — CMOS PFD output
PA6/A2N/BZ
PA6
PAPU
PAWU
ST CMOS General purpose I/O. Register enabled pull-up and wake-up.
A2N OPA2C1 OPAI — OPA2 inverting input pin
BZ BPCTL — CMOS Buzzer output
PA7/A2E/BZ
PA7
PAPU
PAWU
ST CMOS General purpose I/O. Register enabled pull-up and wake-up.
A2E OPA2C1 — OPAO OPA2 output pin
BZ BPCTL — CMOS Complementary buzzer output
PB0/SDO/INT1
PB0
SDO
PBPU
MISC
—
ST
CMOS General purpose I/O. Register enabled pull-up and output
NMOS NMOS structure.
— CMOS SPI data output
INT1
—
ST — External interrupt 1 input pin
PB1
PBPU
MISC
ST
CMOS General purpose I/O. Register enabled pull-up and output
NMOS NMOS structure.
PB1/SDI/SDA
SDI
—
ST — SPI data input
SDA
—
ST NMOS I2C data
PB2/SCK/SCL
PB2
SCK
PBPU
MISC
—
ST
CMOS General purpose I/O. Register enabled pull-up and output
NMOS NMOS structure.
ST — SPI serial clock
SCL
—
ST NMOS I2C clock
PB3
PBPU
MISC
ST
CMOS General purpose I/O. Register enabled pull-up and output
NMOS NMOS structure.
PB3/AN0/SCS
AN0
ADCR AN
— A/D channel 0
SCS
—
ST — SPI slave select
PB4 PBPU ST CMOS General purpose I/O. Register enabled pull-up
PB4/AN1/AUD/
PCK
AN1
AUD
ADCR AN CMOS A/D channel 1
DACTRL — — D/A output pin
PCK
—
— CMOS Peripheral clock output
PB5 PBPU ST CMOS General purpose I/O. Register enabled pull-up
PB5/AN2/PINT AN2 ADCR AN — A/D channel 2
PINT
—
ST — Peripheral interrupt
PB6 PBPU ST CMOS General purpose I/O. Register enabled pull-up
PB6/AN3/RES AN3 ADCR AN — A/D channel 3
RES
CO ST — Reset pin
PC0/AN4/
OSC2
PC0
AN4
OSC2
PCPU
ADCR
CO
ST CMOS General purpose I/O. Register enabled pull-up.
AN — A/D channel 4
— HXT HXT pin
PC1/AN5/
OSC1
PC1
AN5
OSC1
PCPU
ADCR
CO
ST CMOS General purpose I/O. Register enabled pull-up.
AN — A/D channel 5
HXT — HXT/ERC pin
Rev. 1.00
12
July 03, 2012
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