Philips Semiconductors
Product specification
Octal 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
max.
145
29
25
200
40
34
200
40
34
75
15
13
−40
to
+125
min. max.
175
35
30
240
48
41
240
48
41
90
18
15
ns
74HC/HCT541
TEST CONDITIONS
UNIT V
CC
WAVEFORMS
(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
min. typ. max. min.
t
PHL
/ t
PLH
propagation delay
A
n
to Y
n
3-state output
enable time
OE to Y
n
3-state output
disable time
OE to Y
n
output transition time
33
12
10
55
20
16
61
22
18
14
5
4
115
23
20
160
32
27
160
32
27
60
12
10
t
PZH
/ t
PZL
ns
Fig.7
t
PHZ
/ t
PLZ
ns
Fig.7
t
THL
/ t
TLH
ns
Fig.6
December 1990
5
PHILIPS [ NXP SEMICONDUCTORS ]
