Philips Semiconductors
Product specification
Quad 2-input EXCLUSIVE-OR gate
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I
CC
category: SSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HC
SYMBOL PARAMETER
+25
min. typ.
t
PHL
/ t
PLH
propagation delay
nA, nB to nY
output transition time
39
14
11
19
7
6
max.
120
24
20
75
15
13
−40
to
+85
min. max.
150
30
26
95
19
16
−40
to
+125
min. max.
180
36
31
110
22
19
ns
UNIT
74HC/HCT86
TEST CONDITIONS
V
CC
(V)
2.0
4.5
6.0
2.0
4.5
6.0
WAVEFORMS
Fig.6
t
THL
/ t
TLH
ns
Fig.6
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I
CC
category: SSI
Notes to HCT types
The value of additional quiescent supply current (∆I
CC
) for a unit load of 1 is given in the family specifications.
To determine
∆I
CC
per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
nA, nB
UNIT LOAD COEFFICIENT
1.0
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HCT
SYMBOL PARAMETER
min.
t
PHL
/ t
PLH
t
THL
/ t
TLH
propagation delay
nA, nB to nY
output transition time
+25
typ.
17
7
−40
to
+85
max. min.
32
15
max.
40
19
−40
to
+125
min. max.
48
22
ns
ns
4.5
4.5
Fig.6
Fig.6
UNIT
V
CC
(V)
WAVEFORMS
TEST CONDITIONS
December 1990
5
PHILIPS [ NXP SEMICONDUCTORS ]
