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HT66F20 Datasheet(PDF) 8 Page - Holtek Semiconductor Inc |
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HT66F20 Datasheet(HTML) 8 Page - Holtek Semiconductor Inc |
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8 / 250 page  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; NMOS: NMOS output SCOM: Software controlled LCD COM; AN: Analog input pin HXT: High frequency crystal oscillator LXT: Low frequency crystal oscillator *: VDD is the device power supply while AVDD is the ADC power supply. The AVDD pin is bonded together internally with VDD. **: VSS is the device ground pin while AVSS is the ADC ground pin. The AVSS pin is bonded together internally with VSS. As the Pin Description Summary table applies to the package type with the most pins, not all of the above listed pins may be present on package types with smaller numbers of pins. HT66F30 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 PC0~PC7 Port C PCPU ST CMOS ¾ AN0~AN7 ADC input ACERL AN ¾ PA0~PA7 VREF ADC reference input ADCR1 AN ¾ PB5 C0-, C1- Comparator 0, 1 input CP0C CP1C AN ¾ PA3, PC3 C0+, C1+ Comparator 0, 1 input AN ¾ PA2, PC2 C0X, C1X Comparator 0, 1 output ¾ CMOS PA0, PA5 TCK0, TCK1 TM0, TM1 input ¾ ST ¾ PA2, PA4 TP0_0, TP0_1 TM0 I/O TMPC0 ST CMOS PA0, PC5 TP1A TM1 I/O TMPC0 ST CMOS PA1 TP1B_0, TP1B_1 TM1 I/O TMPC0 ST CMOS PC0, PC1 INT0, INT1 Ext. Interrupt 0, 1 ¾ ST ¾ PA3, PA4 PINT Peripheral Interrupt PRM0 ST ¾ PC3 or PC4 PCK Peripheral Clock output PRM0 ¾ CMOS PC2 or PC5 SDI SPI Data input PRM0 ST ¾ PA6 or PC0 SDO SPI Data output PRM0 ¾ CMOS PA5 or PC1 SCS SPI Slave Select PRM0 ST CMOS PB5 or PC6 SCK SPI Serial Clock PRM0 ST CMOS PA7 or PC7 SCL I 2C Clock PRM0 ST NMOS PA7 or PC7 SDA I 2C Data PRM0 ST NMOS PA6 or PC0 SCOM0~SCOM3 SCOM0~SCOM3 SCOMC ¾ SCOM PC0, PC1, PC6, PC7 OSC1 HXT/ERC pin CO HXT ¾ PB1 OSC2 HXT pin CO ¾ HXT PB2 XT1 LXT pin CO LXT ¾ PB3 XT2 LXT pin CO ¾ LXT PB4 HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Rev. 1.20 8 June 4, 2010 |
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