MDT2020(DF)

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P. 2

2005/6

VER 1.3

4. Pin Assignment

DIP/ SOP/ SKINNY

RTCC

1

28

/MCLR

2

27

OSC1

N/C

3

26

OSC2

25

PC7

N/C

5

24

PC6

PA0

6

23

PC5

PA1

7

22

PC4

PA2

8

21

PC3

PA3

9

20

PC2

PB0

10

19

PC1

PB1

11

18

PC0

PB2

12

17

PB7

PB3

13

16

PB6

PB4

14

15

PB5

SSOP

VSS

1

28

/MCLR

RTCC

2

27

OSC1

VDD

3

26

OSC2

VDD

4

25

PC7

PA0

5

24

PC6

PA1

6

23

PC5

PA2

7

22

PC4

PA3

8

21

PC3

PB0

9

20

PC2

PB1

10

19

PC1

PB2

11

18

PC0

PB3

12

17

PB7

PB4

13

16

PB6

VSS

14

15

PB5

5. Pin Function Description

Pin Name

I/O

Function Description

PA0~PA3

I/O

Port A, TTL input level

PB0~PB7

I/O

Port B, TTL input level

PC0~PC7

I/O

Port C, TTL input level

RTCC

I

Real Time Clock/Counter, Schmitt Trigger input levels

/MCLR

I

Master Clear, Schmitt Trigger input levels

OSC1

I

Oscillator Input

OSC2

O

Oscillator Output

Power supply

Ground