hef4025b NXP Semiconductors, hef4025b Datasheet - Page 3

• Manufacturer Part Number: hef4025b
• Description: Triple 3-input Nor Gate
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
V
January 1995
Propagation delays
Output transition times
Dynamic power
SS
Triple 3-input NOR gate
= 0 V; T
I
dissipation per
package (P)
n
HIGH to LOW
LOW to HIGH
HIGH to LOW
LOW to HIGH
O
n
amb
= 25 C; C
L
= 50 pF; input transition times
V
V
V
DD
10
15
10
15
10
15
10
15
V
10
15
DD
5
5
5
5
5
t
t
t
t
PHL
PLH
THL
TLH
SYMBOL
TYPICAL FORMULA FOR P ( W)
10 900 f
4000 f
900 f
TYP.
i
i
i
70
25
20
60
25
15
60
30
20
60
30
20
3
(f
(f
(f
20 ns
o
o
o
C
C
C
L
L
L
)
)
)
MAX.
135
120
120
120
55
40
50
35
60
40
60
40
V
V
V
DD
DD
DD
2
2
2
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
where
f
f
C
V
i
o
DD
= input freq. (MHz)
L
(f
= output freq. (MHz)
= load capacitance (pF)
o
C
= supply voltage (V)
TYPICAL EXTRAPOLATION
L
43 ns
14 ns
12 ns
33 ns
14 ns
10 ns
10 ns
) = sum of outputs
7 ns
9 ns
6 ns
9 ns
6 ns
FORMULA
Product specification
(0,55 ns/pF) C
(0,23 ns/pF) C
(0,16 ns/pF) C
(0,55 ns/pF) C
(0,23 ns/pF) C
(0,16 ns/pF) C
(1,0 ns/pF) C
(0,42 ns/pF) C
(0,28 ns/pF) C
(1,0 ns/pF) C
(0,42 ns/pF) C
(0,28 ns/pF) C
HEF4025B
gates
L
L
L
L
L
L
L
L
L
L
L
L