hef4042b NXP Semiconductors, hef4042b Datasheet - Page 4

• Manufacturer Part Number: hef4042b
• Description: Quadruple D-latch
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
V
January 1995
Propagation delays
Output transition
Set-up time
Hold time
Minimum enable
Dynamic power
SS
Quadruple D-latch
D
E
times
D
D
pulse width
dissipation per
package (P)
= 0 V; T
HIGH to LOW
LOW to HIGH
HIGH to LOW
LOW to HIGH
HIGH to LOW
LOW to HIGH
O, O
O, O
E
E
amb
= 25 C; C
L
= 50 pF; input transition times
V
V
V
DD
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
V
10
15
DD
5
5
5
5
5
5
5
5
5
5
t
t
t
t
t
t
t
t
t
15 700 f
41 100 f
PHL
PLH
PHL
PLH
THL
TLH
su
hold
WE
SYMBOL
3800 f
TYPICAL FORMULA FOR P (W)
i
i
i
(f
(f
(f
o
MIN. TYP. MAX.
o
o
C
C
C
30
20
20
15
15
15
90
40
30
L
L
L
4
)
)
)
20 ns
V
V
V
130
120
DD
DD
DD
95
40
30
85
40
30
50
35
50
35
60
30
20
60
30
20
10
45
20
15
5
5
5
0
0
2
2
2
190
175
260
105
245
105
120
120
80
55
75
60
75
75
60
40
60
40
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
where
f
f
C
V
see also waveforms
Figs 5 and 6
i
o
TYPICAL EXTRAPOLATION
DD
= input freq. (MHz)
L
102 ns
= output freq. (MHz)
(f
= load capacitance (pF)
67 ns
28 ns
22 ns
57 ns
28 ns
22 ns
38 ns
27 ns
92 ns
38 ns
27 ns
10 ns
10 ns
o
9 ns
6 ns
9 ns
6 ns
C
= supply voltage (V)
L
) = sum of outputs
FORMULA
Product specification
HEF4042B
(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
(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
MSI
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L