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HT66FB40 Datasheet(PDF) 10 Page - Holtek Semiconductor Inc |
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HT66FB40 Datasheet(HTML) 10 Page - Holtek Semiconductor Inc |
10 / 26 page Pin Name Function OP I/T O/T Pin-Shared Mapping RES Reset input CO ST ¾ PB0 VDD MCU power supply * ¾ PWR ¾¾ AVDD A/D converter power supply * ¾ PWR ¾¾ VSS MCU ground ** ¾ PWR ¾¾ AVSS A/D converter ground ** ¾ PWR ¾¾ UDP USB D+ pin ¾ ST CMOS ¾ UDN USB D- pin ¾ ST CMOS ¾ V33O 3.3V regulator output pin ¾¾¾ ¾ VDDU USB power supply ¾ PWR ¾¾ VSSU USB ground ¾ PWR ¾¾ NC Not connected, can not be used ¾¾¾ ¾ 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 and VDDU are the ADC and USB power supply respectively. The AVDD and VDDU pins are 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. ***: When the PINT, PCK and SPI functions are pin-shared remapping to PC4~PC5 and PD0~PD3 pins, the SPI pins are to be used as the master SPI signal to communicate with the slave SPI in HT45B0K along with the PINT and PCK pins used as the interrupt input and clock output connected to the SPI to USB chip to control the overall USB functions. HT66FB60 Pin Name Function OP I/T O/T Pin-Shared Mapping PA0~PA7 Port A PAWU PAPU ST CMOS ¾ PB0~PB6 Port B PBPU ST CMOS ¾ PC0~PC1, PC6~PC7 Port C PCPU ST CMOS ¾ PD4~PD5 Port D PDPU ST CMOS ¾ PE0~PE7 Port E PEPU ST CMOS ¾ PF0~PF7 Port F PFPU ST CMOS ¾ PG0~PG1 Port G PFPU ST CMOS ¾ AN0~AN11 A/D converter input ACERL ACERH AN ¾ PA0~PA7, PE6~PE7, PF0~PF1 VREF A/D converter reference input ADCR1 AN ¾ PB5 C0- Comparator 0 input CP0C AN ¾ PA3 C0+ Comparator 0 input AN ¾ PA2 HT66FB30/HT66FB40/HT66FB50/HT66FB60 Rev. 1.10 10 June 4, 2010 |
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