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A2

5

EN1

1

OEAB

2C3

3D

3

A1

B1

54

A14

20

A15

21

A16

23

A17

24

A8

13

A9

14

A10

15

A11

16

A12

17

A3

6

A4

8

A5

9

A6

10

A7

12

B13

38

B14

37

B15

36

B16

34

B17

33

B18

31

6D

4

A18

26

B8

44

B9

43

B10

42

B11

41

B12

40

B3

51

B4

49

B5

48

B6

47

B7

45

B2

52

C6

28

LEBA

G5

30

EN4

27

C3

2

LEAB

G2

55

5C6

CLKBA

OEBA

CLKAB

1

1

1

A13

19

SN74ALVCH16500

18-BIT UNIVERSAL BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCES023I – JULY 1995 – REVISED OCTOBER 2004

INPUTS

OUTPUT

B

OEAB

LEAB

CLKAB

A

L

X

X

X

Z

H

H

X

L

L

H

H

X

H

H

H

L

↓

L

L

H

L

↓

H

H

H

L

H

X

H

L

L

X

(1)

A-to-B data flow is shown; B-to-A flow is similar but uses OEBA,

LEBA, and CLKBA.

(2)

Output level before the indicated steady-state input conditions were

established, provided that CLKAB was high before LEAB went low

(3)

Output level before the indicated steady-state input conditions

were established

(1)

This symbol is in accordance with ANSI/EEEE Std 91-1984 and IEC Publication 617-12.

2