Philips Semiconductors
Product specification
4-bit full adder with fast carry
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HCT
SYMBOL PARAMETER
+25
min.
typ.
max.
74HC/HCT583
TEST CONDITIONS
UNIT V
WAVEFORMS
CC
−40
to +125
(V)
min.
max.
−40
to +85
min.
max.
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
PHL
/ t
PLH
t
THL
/ t
TLH
propagation delay
C
IN
to
∑
0
propagation delay
C
IN
to
∑
1
propagation delay
C
IN
to
∑
2
propagation delay
C
IN
to
∑
3
propagation delay
A
n
or B
n
to
∑
0
propagation delay
A
n
or B
n
to
∑
1
propagation delay
A
n
or B
n
to
∑
2
propagation delay
A
n
or B
n
to
∑
3
propagation delay
C
IN
to C
n+4
propagation delay
A
n
to C
n+4
propagation delay
B
n
to C
n+4
output transition time
standard outputs
20
40
38
38
22
43
40
41
27
31
30
7
34
68
65
65
37
73
68
70
46
53
51
15
43
85
81
81
46
91
85
88
58
66
64
19
51
102
98
98
56
110
102
105
69
80
77
22
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
Fig.6
Fig.6
Fig.6
Fig.6
Fig.6
Fig.6
Fig.6
Fig.6
Fig.6
Fig.6
Fig.6
Fig.6
1998 Mar 31
8
PHILIPS [ NXP SEMICONDUCTORS ]
