Holtek HT68F Series Manual page 19

HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
HT68FU30/HT68FU40/HT68FU50/HT68FU60
Enhanced I/O Flash Type 8-Bit MCU with EEPROM
HT68F40
Pin Name Function
PA0~PA7 Port A
PB0~PB7 Port B
PC0~PC7 Port C
PD0~PD7 Port D
PE0~PE7 Port E
PF0~PF1 Port F
C0-� C1- Comparator 0� 1 inp�t
C0+� C1+ Comparator 0� 1 inp�t
C0X�C1X Comparator 0� 1 o�tp�t
TCK0~TCK2 TM0~TM2 inp�t
TP0_0� TP0_1 TM0 I/O
TP1A TM1 I/O
TP1B_0~TP1B_2 TM1 I/O
TP2_0� TP2_1 TM2 I/O
INT0� INT1 Ext. Interr�pt 0� 1
PINT Periphera� Interr�pt
PCK Periphera� C�ock o�tp�t
SDI SPI Data inp�t
SDO SPI Data o�tp�t
SCS SPI S�ave Se�ect
SCK SPI Seria� C�ock
SCL I C C�ock
2
SDA I C Data
2
SCOM0~SCOM3 SCOM0~SCOM3
OSC1 HXT/ERC pin
OSC2 HXT pin
XT1 LXT pin
XT2 LXT pin
RES Reset inp�t
VDD Power s�pp��
VSS Gro�nd
Note: I/T: Input type;
OP: Optional by configuration option (CO) or register option
PWR: Power;
CMOS: CMOS output;
SCOM: Software controlled LCD COM;
HXT: High frequency crystal oscillator
LXT: Low frequency crystal oscillator
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.
Rev. 2.10
OP I/T O/T
PAWU
ST CMOS
PAPU
PBPU ST CMOS
PCPU ST CMOS
PDPU ST CMOS
PEPU ST CMOS
PFPU ST CMOS
CP0C
AN —
CP1C
CP0C
AN —
CP1C
CP0C
CP1C — CMOS
PRM0
PRM1 ST —
TMPC0
ST CMOS
PRM2
TMPC0
ST CMOS
PRM2
TMPC0
ST CMOS
PRM2
TMPC1
ST CMOS
PRM2
PRM1 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 —
— PWR —
O/T: Output type
CO: Configuration option; ST: Schmitt Trigger input
NMOS: NMOS output
AN: Analog input pin
19
Pin-Shared Mapping
—
—
—
—
—
—
PA3� PC3
PA2� PC2
PA0� PA5 or PF0� PF1
PA2� PA�� PC2 or PD2� PD3� PD0
PA0� PC5 or PC6� PD5
PA1 or PC7
PC0� PC1� PC5 or -� -� PE�
PC3� PC� or PD1� PD�
PA3� PA� or PC�� PC5 or PE6� PE7
PC3 or PC�
PC2 or PC5
PA6 or PD2 or PB7
PA5 or PD3 or PB6
PB5 or PD0 or PD7
PA7 or PD1 or PD6
PA7 or PD1 or PD6
PA6 or PD2 or PB7
PC0� PC1� PC6� PC7
PB1
PB2
PB3
PB�
PB0
—
—
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