Philips Semiconductors
Product specification
Quad 2-input NAND gate
AC WAVEFORMS
74HC/HCT03
HC: V
M
= 50%; V
I
= GND to V
CC
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.6
Waveforms showing the input (nA, nB) to output (nY) propagation delays and the output transition times.
TEST CIRCUIT AND WAVEFORMS
Fig.7 Test circuit (open drain)
Fig.8 Input pulse definitions.
Definitions for Figs. 7, 8:
C
L
= load capacitance including jig and probe
capacitance
(see AC CHARACTERISTICS for values).
= termination resistance should be equal to the
output impedance Z
O
of the pulse generator.
= t
f
= 6 ns; when measuring f
max
, there is no
constraint on t
r
, t
f
with 50% duty factor.
t
r
; t
f
FAMILY AMPLITUDE
V
M
f
max
;
PULSE
WIDTH
<
2 ns
<
2 ns
OTHER
6 ns
6 ns
R
T
t
r
74HC
74HCT
V
CC
3.0 V
50%
1.3 V
December 1990
7
PHILIPS [ NXP SEMICONDUCTORS ]
