SN54LVTH373, SN74LVTH373

3.3-V ABT OCTAL TRANSPARENT D-TYPE LATCHES

WITH 3-STATE OUTPUTS

SCBS689E – MAY 1997 – REVISED APRIL 1999

2

POST OFFICE BOX 655303

description (continued)

disables the outputs, preventing damaging current backflow through the devices when they are powered down.

The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,

which prevents driver conflict.

The SN54LVTH373 is characterized for operation over the full military temperature range of –55

°C to 125°C.

The SN74LVTH373 is characterized for operation from –40

°C to 85°C.

FUNCTION TABLE

(each latch)

INPUTS

OUTPUT

OE

LE

D

Q

L

H

H

H

L

HL

L

L

LX

Q0

H

X

X

Z

1D

3

1D

4

2D

7

3D

EN

1

1Q

2

2Q

5

3Q

6

8

4D

13

5D

14

6D

4Q

9

5Q

12

6Q

15

OE

17

7D

18

8D

C1

11

LE

7Q

16

8Q

19

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

logic diagram (positive logic)

OE

To Seven Other Channels

1

11

3

2

LE

1D

C1

1D

1Q