SN74LVCH16373A

16BIT TRANSPARENT DTYPE LATCH

WITH 3STATE OUTPUTS

SCAS568L − MARCH 1996 − REVISED SEPTEMBER 2003

2

POST OFFICE BOX 655303

description/ordering information (continued)

OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while

the outputs are in the high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator

in a mixed 3.3-V/5-V system environment.

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

preventing damaging current backflow through the device when it is powered down.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors

with the bus-hold circuitry is not recommended.

terminal assignments

123456

A

1OE

NC

NC

NC

NC

1LE

B

1Q2

1Q1

GND

GND

1D1

1D2

C

1Q4

1Q3

VCC

VCC

1D3

1D4

D

1Q6

1Q5

GND

GND

1D5

1D6

E

1Q8

1Q7

1D7

1D8

F

2Q1

2Q2

2D2

2D1

G

2Q3

2Q4

GND

GND

2D4

2D3

H

2Q5

2Q6

VCC

VCC

2D6

2D5

J

2Q7

2Q8

GND

GND

2D8

2D7

K

2OE

NC

NC

NC

NC

2LE

NC − No internal connection

FUNCTION TABLE

INPUTS

OUTPUT

OE

LE

D

OUTPUT

Q

L

H

H

H

L

HL

L

L

LX

Q0

H

X

X

Z

GQL OR ZQL PACKAGE

(TOP VIEW)

A

B

C

D

E

F

G

H

J

K

1

2345

6