UNISONIC TECHNOLOGIES CO., LTD

U74AHC377

CMOS IC

www.unisonic.com.tw

1 of 8

Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R502-A48.A

OCTAL D-TYPE FLIP-FLOPS

WITH DATA ENABLE

POSITIVE-EDGE TRIGGER



DESCRIPTION

The U74AHC377 is a high-speed Si-gate CMOS device and

is compatible with low-power Schottky TTL (LSTTL).

The U74AHC377 has eight edge-triggered, D-type flip-flops

with individual D inputs and Q outputs. A common clock input

(CLK) loads all flip-flops simultaneously when the data enable

input ( EN ) is LOW. The state of each D input, one set-up time

before the LOW-to-HIGH clock transition, is transferred to the

corresponding output (Qn) of the flip-flop. The EN input is only

required to be stable one set-up time prior to the LOW-to-HIGH

transition for predictable operation.



FEATURES

* Balanced propagation delays

* All inputs have Schmitt-trigger actions

* Ideal for addressable register applications

* Data enable for address and data synchronization

* Eight positive-edge triggered D-type flip-flops



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

U74AHC373L-S20-T

U74AHC373G-S20-T

SOP-20

Tube

U74AHC373L-S20-R

U74AHC373G-S20-R

SOP-20

Tape Reel

U74AHC373L-P20-T

U74AHC373G-P20-T

TSSOP-20

Tube

U74AHC373L-P20-R

U74AHC373G-P20-R

TSSOP-20

Tape Reel