SN54ALVTH162244, SN74ALVTH162244

2.5-V/3.3-V 16-BIT BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCES074E – JUNE 1996 - REVISED JANUARY 1999

2

POST OFFICE BOX 655303

description (continued)

These devices can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide

true outputs and symmetrical active-low output-enable (OE) inputs.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

the minimum value of the resistor is determined by the current-sinking capability of the driver.

All outputs are designed to sink up to 12 mA and include equivalent 30-

Ω resistors to reduce overshoot and

undershoot.

The SN54ALVTH162244 is characterized for operation over the full military temperature range of –55

°C to

125

°C. The SN74ALVTH162244 is characterized for operation from –40°C to 85°C.

FUNCTION TABLE

(each 4-bit buffer)

INPUTS

OUTPUT

OE

A

Y

L

H

H

L

LL

H

X

Z

logic diagram (positive logic)

1OE

1A1

1A2

1A3

1A4

1Y1

1Y2

1Y3

1Y4

1

47

46

44

43

2

3

5

6

2OE

2A1

2A2

2A3

2A4

2Y1

2Y2

2Y3

2Y4

48

41

40

38

37

8

9

11

12

3OE

3A1

3A2

3A3

3A4

3Y1

3Y2

3Y3

3Y4

25

36

35

33

32

13

14

16

17

4OE

4A1

4A2

4A3

4A4

4Y1

4Y2

4Y3

4Y4

24

30

29

27

26

19

20

22

23