Philips Semiconductors

Product data

GTL2000

22-bit bi-directional low voltage translator

2003 Apr 01

3

PIN CONFIGURATION

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

21

22

23

24

41

42

43

44

45

46

47

48

GND

SA00521

PIN DESCRIPTION

PIN

NUMBER

SYMBOL

NAME AND FUNCTION

1

GND

Ground (0 V)

2

Source of reference transistor

3 - 24

25 - 46

47

Drain of reference transistor

48

Gate of reference transistor

FUNCTION TABLE

HIGH to LOW translation assuming Dn is at the higher voltage level

GREF

DREF

SREF

In-Dn

Out-Sn

Transistor

H

H

0 V

X

X

Off

H

H

H

On

H

H

L

On

L

L

X

X

Off

H = High voltage level

L

= Low voltage level

X = Don’t Care

NOTES:

1. Sn is not pulled up or pulled down.

2. Sn follows the Dn input low.

translator operation.

FUNCTION TABLE

LOW to HIGH translation assuming Dn is at the higher voltage level

GREF

DREF

SREF

In-Sn

Out-Dn

Transistor

H

H

0 V

X

X

Off

H

H

nearly off

H

H

L

On

L

L

X

X

Off

H = High voltage level

L

= Low voltage level

X = Don’t Care

NOTES:

2. Dn follows the Sn input low.

translator operation.

CLAMP SCHEMATIC

SA00522