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STLC5445

PIN CONNECTION (Top view)

PIN FUNCTION

N°

Pin Name

Description

1

CODC0

Pin for connection of the external capacitor (100nF/6.3V) to GND for COD signal filtering on

channel 0.

2

CODC1

Pin for connection of the external capacitor (100nF/6.3V) to GND for COD signal filtering on

channel 1

4

CKILC

External clock input pin for the internal power on sequencer

5

NACK0(D0)

Logic pin: with PSC = 0, Line 0 status information output

with PSC = 1, Line 0 I/O tristate data bus

6

NACK1(D1)

Logic pin: with PSC = 0, Line 1 status information output

with PSC = 1, Line 1 I/O tristate data bus

7

REL0A

Output of the 0A relay driver

8

*EREL0A

Logic input pin: relay 0A output driver’s ON/OFF (high = ON)

9

*EREL0B

Logic input pin: relay 0B output driver’s ON/OFF (high = ON)

10

REL0B

Output of the 0B relay driver

11

REL1A

Output of the 1A relay driver

1

2

3

5

6

4

7

8

9

10

27

11

28 29 30 31 32

59

58 57 56 55 54 53

47

46

45

43

42

44

52

51

50

48

49

NACK1(D1)

NACK0(D0)

CK_ILC

CODC1

CODC0

RGND

REL1A

REL0B

*EREL0B

REL0A

*EREL0A

NACK2(D2)

REL3B

*EREL3B

REL3A

REL2B

*EREL3A

N.C.

BGND

NACK3(D3)

*RESET

D99TL437

26

60

61

62

63

64

21 22 23 24 25

41

40

38

37

39

*EREL2B

*EREL2A

*ES2(RD)

*ES1(CS)

*ES3(WR)

12

13

14

15

16

PBIT

ALE

REL1B

*EREL1A

*EREL1B

36

34

33

35

*ES0(A0)

CODC3

CODC2

RGND

17

18

19

20

N.C.

BGND

INTN

PSC

REL2A

*INTERNAL PULL DOWN TO GROUND