SL74HCT373

System Logic

Semiconductor

SLS

Octal 3-State Noninverting Transparent Latch

High-Performance Silicon-Gate CMOS

The SL74HCT373 may be used as a level converter for interfacing

TTL or NMOS outputs to High-Speed CMOS inputs.

The SL74HCT373 is identical in pinout to the LS/ALS373.

The eight latches of the SL74HCT373 are transparent D-type

latches. While the Latch Enable is high the Q outputs follow the Data

Inputs. When Latch Enable is taken low, data meeting the setup and

hold times becomes latched.

The Output Enable does not affect the state of the latch, but when

Output Enable is high, all outputs are forced to the high-impedance

state. Thus, data may be latched even when the outputs are not

enabled.

• TTL/NMOS-Compatible Input Levels

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 4.5 to 5.5 V

• Low Input Current: 1.0 µA

ORDERING INFORMATION

SL74HCT373N Plastic

SL74HCT373D SOIC

° to 125° C for all packages

PIN ASSIGNMENT

FUNCTION TABLE

Inputs

Output

Output

Enable

Latch

Enable

D

Q

L

H

H

H

L

H

L

L

L

L

X

No Change

H

X

X

Z

X = Don’t Care

Z = High Impedance

LOGIC DIAGRAM

PIN 10 = GND