74HC374 Datasheet, PDF (4/8 Pages) NXP Semiconductors – Octal D-type flip-flop; positive edge-trigger; 3-state

Philips Semiconductors
Octal D-type flip-flop; positive edge-trigger;
3-state
Product specification
74HC/HCT374
FUNCTION TABLE
OPERATING
MODES
load and read
register
load register and
disable outputs
INPUTS
OE CP D_n
L↑ l
L↑h
H↑ l
H↑ h
INTERNAL
FLIP-FLOPS
L
H
L
H
OUTPUTS
Q₀ to Q₇
L
H
Z
Z
Notes
1. H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH
CP transition
L = LOW voltage level
I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP
transition
Z = high impedance OFF-state
↑ = LOW-to-HIGH CP transition
Fig.4 Functional diagram.
December 1990
Fig.5 Logic diagram.
4