Rev. 2.50 16 June 22, 2017 Rev. 2.50 17 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
HXT:Highfrequencycrystaloscillator
LXT:Lowfrequencycrystaloscillator
*:VDDisthedevicepowersupplywhileAVDDistheADCpowersupply.TheAVDDpinisbonded
togetherinternallywithVDD.
**:VSSisthedevicegroundpinwhileAVSSistheADCgroundpin.TheAVSSpinisbondedtogether
internallywithVSS.
AsthePinDescriptionSummarytableappliestothepackagetypewiththemostpins,notalloftheabove
listedpinsmaybepresentonpackagetypeswithsmallernumbersofpins.
HT66F30
Pin Name Function OP I/T O/T Pin-Shared Mapping
PA0~PA7 Port A
PAWU
PAPU
ST CMOS —
PB0~PB5 Port B PBPU ST CMOS —
PC0~PC7 Port C PCPU 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 AN — PA2, PC2
C0X, C1X Comparator 0, 1 output — CMOS PA0, PA5
TCK0, TCK1 TM0, TM1 input — ST — 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 — ST — PA3, PA4
PINT Peripheral Interrupt PRM0 ST — PC3 or PC4
PCK
Peripheral Clock output PRM0 — CMOS PC2 or PC5
SDI
SPI Data input PRM0 ST — PA6 or PC0
SDO
SPI Data output PRM0 — 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
2
C Clock PRM0 ST NMOS PA7 or PC7
SDA I
2
C Data PRM0 ST NMOS PA6 or PC0
SCOM0~SCOM3 SCOM0~SCOM3 SCOMC — SCOM
PC0, PC1, PC6, PC7
OSC1 HXT/ERC pin CO HXT — PB1
OSC2 HXT pin CO — HXT PB2
XT1 LXT pin CO LXT — PB3
XT2 LXT pin CO — LXT PB4
RES Reset input CO ST — PB0
VDD
Power supply* — PWR — —
AVDD
ADC power supply* — PWR — —
VSS
Ground** — PWR — —
AVSS
ADC ground** — PWR — —
Note:I/T:Inputtype; O/T:Outputtype
OP:Optionalbycongurationoption(CO)orregisteroption
PWR:Power; CO:Congurationoption; ST:SchmittTriggerinput
CMOS:CMOSoutput; NMOS:NMOSoutput
SCOM:SoftwarecontrolledLCDCOM; AN:Analogsignal
HXT:Highfrequencycrystaloscillator