Philips Semiconductors
Product specification
Dual 4-input multiplexer; 3-state
74HC/HCT253
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
TEST CONDITIONS
74HC
SYMBOL PARAMETER
UNIT
WAVEFORMS
VCC
+25
−40 to +85
−40
to +125
(V)
min. typ. max. min. max. min. max.
tPHL/ tPLH propagation delay
1In to nY;
55
20
16
175
35
30
220
44
37
265 ns
53
45
2.0
4.5
6.0
Fig.6
Fig.6
Fig.7
Fig.7
Fig.6
2In to nY
t
t
t
t
PHL/ tPLH propagation delay
Sn to nY
58
21
17
175
35
30
220
44
37
265 ns
53
45
2.0
4.5
6.0
PZH/ tPZL 3-state output enable time
nOE to nY
30
11
9
100
20
17
125
25
21
150 ns
30
26
2.0
4.5
6.0
PHZ/ tPLZ 3-state output disable time
nOE to nY
41
15
12
150
30
26
190
38
33
225 ns
45
38
2.0
4.5
6.0
THL/ tTLH output transition time
14
5
4
60
12
10
75
15
13
90
18
15
ns
2.0
4.5
6.0
December 1990
5
NXP [ NXP ]
