Holtek HT66F20 Manual page 21

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
HT66F60
Pin Name Function
PA0~PA� Port A
PB0~PB� Port B
PC0~PC� Port C
PD0~PD� Port D
PE0~PE� Port E
PF0~PF� Port F
PG0~PG� Port G
AN0~AN�� ADC inp�t
VREF ADC reference inp�t
C0-� C�- Comparator 0� � inp�t
C0+� C�+ Comparator 0� � inp�t
C0X� C�X Comparator 0� � o�tp�t
TCK0~TCK3 TM0~TM3 inp�t
TP0_0� TP0_� TM0 I/O
TP�A TM� I/O
TP�B_0~TP�B_2 TM� I/O
TP2_0� TP2_� TM2 I/O
TP3_0� TP3_� TM3 I/O
INT0~INT3 Ext. Interr�pt 0~3
PINT Peripheral Interr�pt
PCK Peripheral Clock o�tp�t
SDI SPI Data inp�t
SDO SPI Data o�tp�t
SCS SPI Slave Select
SCK SPI Serial Clock
SCL I C Clock
2
SDA I C Data
2
SCOM0~SCOM3 SCOM0~SCOM3
OSC� HXT/ERC pin
OSC2 HXT pin
XT� LXT pin
XT2 LXT pin
RES Reset inp�t
VDD Power s�pply*
Rev. 2.50
OP I/T O/T
PAWU
ST CMOS
PAPU
PBPU ST CMOS
PCPU ST CMOS
PDPU ST CMOS
PEPU ST CMOS
PFPU ST CMOS
PGPU ST CMOS
ACERL
AN —
ACERH
ADCR� AN —
CP0C
AN —
CP�C
CP0C
AN —
CP�C
CP0C
CP�C — CMOS
PRM0
PRM� ST —
TMPC0
ST CMOS
PRM2
TMPC0
ST CMOS
PRM2
TMPC0
ST CMOS
PRM2
TMPC�
ST CMOS
PRM2
TMPC�
ST CMOS
PRM2
PRM� ST —
PRM0 ST —
PRM0 — CMOS
PRM0 ST —
PRM0 — CMOS
PRM0 ST CMOS
PRM0 ST CMOS
PRM0 ST NMOS
PRM0 ST NMOS
SCOMC — SCOM
CO HXT —
CO — HXT
CO LXT —
CO — LXT
CO ST —
— PWR —
2�
Pin-Shared Mapping
—
—
—
—
—
—
—
PA0~PA�� PE6� PE�� PF0� PF�
PB5
PA3� PC3
PA2� PC2
PA0� PA5 or PF0� PF� or PG0� PG�
PA2� PA4� PC2� PC4 or PD2� PD3�
PD0� –
PA0� PC5 or PC6� PD5
PA� or PC�
PC0� PC�� PC5 or –� –� PE4
PC3� PC4 or PD�� PD4
PD3� PD0 or PE5� PE3
PA3� PA4� PC4� PC5 or PC4� PC5�
PE2� –� or PE0� PE�� –� – or PE6�
PE�� –� –
PC3 or PC4
PC2 or PC5
PA6 or PD2 or PB�
PA5 or PD3 or PB6 or PD�
PB5 or PD0 or PD�
PA� or PD� or PD6 or PD3
PA� or PD� or PD6 or PD3
PA6 or PD2 or PB�
PC0� PC�� PC6� PC�
PB�
PB2
PB3
PB4
PB0
—
��ne 22� 20��