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HT45F43 Datasheet(PDF) 10 Page - Holtek Semiconductor Inc |
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HT45F43 Datasheet(HTML) 10 Page - Holtek Semiconductor Inc |
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10 / 152 page  Pin Description Pin Name Function OPT I/T O/T Description PA0/CNP/SCOM0 PA0 PAPU PAWU ST CMOS General purpose I/O. Register enabled pull-up, wake-up. CNP CMP1C1 CMPI ¾ Comparator input pin SCOM0 LCDC ¾ SCOM Software controlled 1/2 bias LCD COM PA1/C1OUT/TC0 PA1 PAPU PAWU ST CMOS General purpose I/O. Register enabled pull-up, wake-up. C1OUT CMP1C1 ¾ CMPO Comparator 1 output pin TC0 ¾ ST ¾ External Timer0 clock input PA2/A1P/C2OUT PA2 PAPU PAWU ST CMOS General purpose I/O. Register enabled pull-up, wake-up. A1P OPA1C1 OPAI ¾ OPA1 non-inverting input pin C2OUT CMP2C1 ¾ CMPO Comparator 2 output pin PA3/A1N/INT0 PA3 PAPU PAWU ST CMOS General purpose I/O. Register enabled pull-up, wake-up. A1N OPA1C1 OPAI ¾ OPA1 inverting input pin INT0 ¾ ST ¾ External interrupt 0 input pin PA4/A1E/TC1 PA4 PAPU PAWU ST CMOS General purpose I/O. Register enabled pull-up and wake-up. A1E OPA1C1 ¾ OPAO OPA1 output pin TC1 ¾ ST ¾ External Timer1 clock input PA5/A2P/PFD 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 PA6/A2N/BZ PA6 PAPU PAWU ST CMOS General purpose I/O. Register enabled pull-up and wake-up. A2N OPA2C1 OPAI ¾ OPA2 inverting input pin BZ BPCTL ¾ CMOS Buzzer output PA7/A2E/BZ PA7 PAPU PAWU ST CMOS General purpose I/O. Register enabled pull-up and wake-up. A2E OPA2C1 ¾ OPAO OPA2 output pin BZ BPCTL ¾ CMOS Complementary buzzer output PB0/SDO/INT1 PB0 PBPU MISC ST CMOS NMOS General purpose I/O. Register enabled pull-up and output NMOS structure. SDO ¾¾ CMOS SPI data output INT1 ¾ ST ¾ External interrupt 1 input pin PB1/SDI/SDA PB1 PBPU MISC ST CMOS NMOS General purpose I/O. Register enabled pull-up and output NMOS structure. SDI ¾ ST ¾ SPI data input SDA ¾ ST NMOS I 2C data Rev. 1.20 10 September 15, 2011 HT45F23/HT45F43 8-Bit Flash MCU with Op Amps & Comparators |
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