Holtek HT66F30 - Page 19

Rev. 2.50 18 June 22, 2017 Rev. 2.50 19 June 22, 2017
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
Pin Name Function OP I/T O/T Pin-Shared Mapping
AVDD
ADC power supply* — PWR — —
VSS
Ground** — PWR — —
AVSS
ADC ground** — PWR — —
Note:I/T:Inputtype;  O/T:Outputtype
OP:Optionalbycongurationoption(CO)orregisteroption
PWR:Power;  CO:Congurationoption; ST:SchmittTriggerinput
CMOS:CMOSoutput; NMOS:NMOSoutput
SCOM:SoftwarecontrolledLCDCOM;   AN:Analogsignal
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.
HT66F50
Pin Name Function OP I/T O/T Pin-Shared Mapping
PA0~PA7 Port A
PAWU
PAPU
ST CMOS —
PB0~PB7 Port B PBPU ST CMOS —
PC0~PC7 Port C PCPU ST CMOS —
PD0~PD7 Port D PDPU ST CMOS —
PE0~PE7 Port E PEPU ST CMOS —
PF0~PF1 Port F PFPU ST CMOS —
AN0~AN7 ADC input ACERL AN — PA0~PA7
VREF ADC reference input ADCR1 AN — PB5
C0-, C1- Comparator 0, 1 input
CP0C
CP1C
AN — PA3, PC3
C0+, C1+ Comparator 0, 1 input
CP0C
CP1C
AN — PA2, PC2
C0X, C1X Comparator 0, 1 output
CP0C
CP1C
PRM0
— CMOS PA0, PA5 or PF0, PF1
TCK0~TCK3 TM0~TM3 input PRM1 ST —
PA2, PA4, PC2, PC4 or PD2, PD3,
PD0, –
TP0_0, TP0_1 TM0 I/O
TMPC0
PRM2
ST CMOS PA0, PC5 or PC6, PD5
TP1A TM1 I/O
TMPC0
PRM2
ST CMOS PA1 or PC7
TP1B_0~TP1B_2 TM1 I/O
TMPC0
PRM2
ST CMOS PC0, PC1, PC5 or –, – PE4
TP2_0, TP2_1 TM2 I/O
TMPC1
PRM2
ST CMOS PC3, PC4 or PD1, PD4
TP3_0, TP3_1 TM3 I/O
TMPC1
PRM2
ST CMOS PD3, PD0 or PE5, PE3
INT0, INT1 Ext. Interrupt 0, 1 PRM1 ST — PA3, PA4 or PC4, PC5 or PE6, PE7
PINT Peripheral Interrupt PRM0 ST — PC3 or PC4
PCK
Peripheral Clock output PRM0 — CMOS PC2 or PC5