Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HC
SYMBOL
PARAMETER
+25
−40
to +85
−40
to +125
max.
150
30
26
190
38
32
190
38
32
90
18
15
ns
ns
ns
ns
74HC/HCT125
TEST CONDITIONS
UNIT V
CC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Fig.6
Fig.7
Fig.7
WAVEFORMS
min. typ. max. min. max. min.
t
PHL
/ t
PLH
propagation delay
nA to nY
30
11
9
t
PZH
/ t
PZL
3-state output enable time
nOE to nY
41
15
12
t
PHZ
/ t
PLZ
3-state output disable time
nOE to nY
41
15
12
t
THL
/ t
TLH
output transition time
14
5
4
100
20
17
125
25
21
125
25
21
60
12
10
125
25
21
155
31
26
155
31
26
75
15
13
Fig.6
December 1990
4
PHILIPS [ NXP SEMICONDUCTORS ]
