Holtek HT68F Series Manual page 20

HT68F50
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~TCK3 TM0~TM3 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
TP3_0� TP3_1 TM3 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;
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
HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
HT68FU30/HT68FU40/HT68FU50/HT68FU60
Enhanced I/O Flash Type 8-Bit MCU with EEPROM
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 PA0� PA5 or PF0� PF1
PRM0
PRM1 ST —
TMPC0
ST CMOS PA0� PC5 or PC6� PD5
PRM2
TMPC0
ST CMOS PA1 or PC7
PRM2
TMPC0
ST CMOS PC0� PC1� PC5 or -� -� PE�
PRM2
TMPC1
ST CMOS PC3� PC� or PD1� PD�
PRM2
TMPC1
ST CMOS PD3� PD0 or PE5� PE3
PRM2
PRM1 ST —
PRM0 ST —
PRM0 — CMOS PC2 or PC5
PRM0 ST —
PRM0 — CMOS PA5 or PD3 or PB6
PRM0 ST CMOS PB5 or PD0 or PD7
PRM0 ST CMOS PA7 or PD1 or PD6
PRM0 ST NMOS PA7 or PD1 or PD6
PRM0 ST NMOS PA6 or PD2 or PB7
SCOMC — SCOM PC0� PC1� PC6� PC7
CO HXT —
CO — HXT
CO LXT —
CO — LXT
CO ST —
— PWR —
— PWR —
O/T: Output type;
CO: Configuration option;
NMOS: NMOS output
20
Pin-Shared Mapping
—
—
—
—
—
—
PA3� PC3
PA2� PC2
PA2� PA�� PC2� PC� or PD2� PD3� PD0� -
PA3� PA� or PC�� PC5 or PE6� PE7
PC3 or PC�
PA6 or PD2 or PB7
PB1
PB2
PB3
PB�
PB0
—
—
ST: Schmitt Trigger input
AN: Analog input pin
LXT: Low frequency crystal oscillator
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