SN54ALVTH16373, SN74ALVTH16373

2.5-V/3.3-V 16-BIT TRANSPARENT D-TYPE LATCHES

WITH 3-STATE OUTPUTS

SCES067F – JUNE 1996 – REVISED JANUARY 1999

2

POST OFFICE BOX 655303

description (continued)

A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high

or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive

the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus

lines without interface or pullup components.

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.

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.

The SN54ALVTH16373 is characterized for operation over the full military temperature range of –55

°C to

125

°C. The SN74ALVTH16373 is characterized for operation from –40°C to 85°C.

FUNCTION TABLE

(each 8-bit section)

INPUTS

OUTPUT

OE

LE

D

Q

L

H

H

H

L

HL

L

L

LX

Q0

H

X

X

Z