Philips Semiconductors
Product specification
Quad 2-input AND gate
74HC08; 74HCT08
Family 74HCT08
GND = 0 V; t
f
= t
f
= 6 ns; C
L
= 50 pF.
TEST CONDITIONS
SYMBOL
T
amb
= 25
°C
t
PHL
/t
PLH
t
THL
/t
TLH
propagation delay nA,
nB to nY
output transition time
see Figs 7 and 8 4.5
see Figs 7 and 8 4.5
−
−
−
−
−
−
14
7
−
−
−
−
24
15
ns
ns
PARAMETER
WAVEFORMS
V
CC
(V)
MIN.
TYP.
MAX.
UNIT
T
amb
=
−40
to +85
°C
t
PHL
/t
PLH
t
THL
/t
TLH
propagation delay nA,
nB to nY
output transition time
see Figs 7 and 8 4.5
see Figs 7 and 8 4.5
30
19
ns
ns
T
amb
=
−40
to +125
°C
t
PHL
/t
PLH
t
THL
/t
TLH
propagation delay nA,
nB to nY
output transition time
see Figs 7 and 8 4.5
see Figs 7 and 8 4.5
36
22
ns
ns
AC WAVEFORMS
V
handbook, halfpage
I
nA, nB input
GND
t PHL
VOH
nY output
VOL
t THL
VM
VM
10%
VM
VM
t PLH
90%
t TLH
MNA726
74HC08: V
M
= 50%; V
I
= GND to V
CC
.
74HCT08: V
M
= 1.3 V; V
I
= GND to 3 V.
Fig.7 Waveforms showing the input (nA, nB) to output (nY) propagation delays and the output transition times.
2003 Jul 25
12
PHILIPS [ NXP SEMICONDUCTORS ]
