Datasheet

September 1993 4
Philips Semiconductors Product specification
Octal D-type flip-flop with reset;
positive-edge trigger
74HC/HCT273
Fig.4 Functional diagram.
FUNCTION TABLE
Note
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
↑ = LOW-to-HIGH transition
X = don’t care
OPERATING
MODES
INPUTS OUTPUTS
MR CP D
n
Q
n
reset (clear) L X X L
load “1” H ↑ hH
load “0” H ↑ IL
Fig.5 Logic diagram.