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HT66F016 Datasheet(PDF) 10 Page - Holtek Semiconductor Inc |
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HT66F016 Datasheet(HTML) 10 Page - Holtek Semiconductor Inc |
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10 / 116 page  Pin Description With the exception of the power pins, all pins on these devices can be referenced by their Port name, e.g. PA.0, PA.1 etc, which refer to the digital I/O function of the pins. However these Port pins are also shared with other function such as the Analog to Digital Converter, Timer Module pins etc. The function of each pin is listed in the following table, how- ever the details behind how each pin is configured is contained in other sections of the datasheet. The following tables only include the pins which are directly related to the MCU. The pin descriptions of the additional peripheral functions are located at the end of the datasheet along with the relevant peripheral function functional de- scription. HT66F016, HT68F016 Pin Name Function OP I/T O/T Pin-Shared Mapping PA0~PA7 Port A PAWU PAPU ST CMOS ¾ PB0~PB5 Port B PBPU ST CMOS ¾ AN0~AN3 A/D converter input ACERL AN ¾ PA0~PA3 VREF A/D converter reference input ADCR1 AN ¾ PA1 C- Comparator input CPC AN ¾ PA1 C+ Comparator input AN ¾ PA0 CX Comparator output ¾ CMOS PA2 TCK1 TM1 input PRM ST ¾ PA2 or PA3 TP1 TM1 I/O PRM TMPC ST CMOS PA4, PA6, PA7 or PB1 INT0 External Interrupt 0 INTC0 INTEG ST ¾ PA3 or PA2 INT1 External Interrupt 1 INTC2 INTEG ST ¾ PA5 or PA4 OSC1 HXT pin CO HXT ¾ PA6 OSC2 HXT pin CO ¾ HXT PA5 VDD Power supply ¾ PWR ¾¾ VSS Ground ¾ PWR ¾¾ Note: I/T: Input type; O/T: Output type OP: Optional by configuration option (CO) or register option PWR: Power; CO: Configuration option; ST: Schmitt Trigger input CMOS: CMOS output AN: Analog input pin HXT: High frequency crystal oscillator HT68F016 doesn ¢t have AN0~AN3, VREF pin. HT66F016/HT66F017/HT68F016/HT68F017 Rev. 1.00 10 May 14, 2012 |
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