No. 6238-6/12

LC895199K

Pin Functions

LC895199K Pin Functions

(When pin 103 (ATPINSEL) is low)

Type

I

INPUT

B

BIDIRECTION

NC

NOT CONNECT

O

OUTPUT

P

POWER

Pin No.

Pin name

Type

Pin functions

P

2

ZRAS0

O

Buffer DRAM RAS signal output

3

ZCAS0

O

Buffer DRAM CAS signal output 0 (Normally held at 0 (low).)

4

ZCAS1

O

Buffer DRAM CAS signal output 1

P

6

ZOE

O

Buffer DRAM output enable

7

ZUWE

O

Buffer DRAM upper write enable

8

ZLWE

O

Buffer DRAM lower write enable

P

10

RA0

O

11

RA1

O

12

RA2

O

13

RA3

O

Data buffer DRAM address signal outputs

14

RA4

O

15

RA5

O

16

RA6

O

17

RA7

O

18

P

5.0 V

19

P

20

RA8

O

Data buffer DRAM address signal output

21

IO0

B

22

IO1

B

23

IO2

B

Data buffer DRAM data input and output

24

IO3

B

These pins have built-in pull-up resistors.

25

IO4

B

26

IO5

B

27

P

28

IO6

B

29

IO7

B

30

IO8

B

31

IO9

B

Data buffer DRAM data input and output

32

IO10

B

These pins have built-in pull-up resistors.

33

IO11

B

34

IO12

B

35

IO13

B

36

P

37

P

3.3 V

38

IO14

B

Data buffer DRAM data input and output

39

IO15

B

These pins have built-in pull-up resistors.

40

NC

41

P

42

IOP0

B

43

IOP1

B

44

IOP2

B

45

IOP3

B

General-purpose input and output ports

46

IOP4

B

47

IOP5

B

48

IOP6

B

49

IOP7

B

50

NC

51

TEST0

I

52

XTALCK

I

Crystal oscillator circuit input

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