SAKC505L 查看數據表（PDF） - Infineon Technologies

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SAKC505L

8-Bit CMOS Microcontroller

Infineon Technologies 

C505L

Table 1

Pin Definitions and Functions (cont’d)

Symbol

Pin Number I/O*) Function

P4.0-P4.7 21-28

21

22

23

24

25

26

27

28

I/O Port 4

is a 8-bit quasi-bidirectional port with internal pull-up

arrangement. Port 4 pins that have a 1 written to them are

pulled high by the internal pull-up transistors and in that

state can be used as inputs. As inputs, port 4 pins being

externally pulled low will source current (IIL, in the DC

characteristics) because of the internal pullup transistors.

Port 4 pins can also be configured as LCD column outputs.

The secondary functions are assigned to the pins of port 4

as follows:

P4.0 / C16

LCD column output 16

P4.1 / C17

LCD column output 17

P4.2 / C18

LCD column output 18

P4.3 / C19

LCD column output 19

P4.4 / C20

LCD column output 20

P4.5 / C21

LCD column output 21

P4.6 / C22

LCD column output 22

P4.7 / C23

LCD column output 23

These pins should not be used for input when configured as

LCD output pins.

P5.0-P5.5 29-34

29

30

31

32

33

34

I/O Port 5

is a 6-bit quasi-bidirectional port with internal pull-up

arrangement. Port 5 pins that have a 1 written to them are

pulled high by internal pull-up transistors and in that state

can be used as inputs. As inputs, port 5 pins being

externally pulled low will source current (IIL, in the DC

characteristics) because of the internal pullup transistors.

Port 5 pins can also be configured as LCD column outputs.

The secondary functions are assigned to the pins of port 5

as follows:

P5.0 / C24

LCD column output 24

P5.1 / C25

LCD column output 25

P5.2 / C26

LCD column output 26

P5.3 / C27

LCD column output 27

P5.4 / C28

LCD column output 28

P5.5 / C29

LCD column output 29

These pins should not be used for input when configured as

LCD output pins.

*) I = Input

O = Output

Data Sheet

6

06.99

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