Datasheet

January 1995 4
Philips Semiconductors Product specification
8-bit static shift register
HEF4014B
MSI
PINNING
FUNCTION TABLES
Serial operation
PE parallel enable input
P
0
to P
7
parallel data inputs
D
S
serial data input
CP clock input (LOW to HIGH edge-triggered)
O
5
to O
7
buffered parallel outputs from the last three
stages
n
INPUTS OUTPUTS
CP D
S
PE O
5
O
6
O
7
1D
1
LXXX
2D
2
LXXX
3D
3
LXXX
6XLD
1
XX
7XLD
2
D
1
X
8XLD
3
D
2
D
1
X X no change
Parallel operation
Notes
1. H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
X = state is immaterial
= positive-going transition
= negative-going transition
D
n
= either HIGH or LOW
n = number of clock pulse transitions
n
INPUTS OUTPUTS
CP D
S
PE O
5
O
6
O
7
1XHP
5
P
6
P
7
X X no change
AC CHARACTERISTICS
V
SS
= 0 V; T
amb
= 25 °C; C
L
= 50 pF; input transition times ≤ 20 ns
V
DD
V
TYPICAL FORMULA FOR P (µW)
Dynamic power 5 900 f
i
+∑ (f
o
C
L
) × V
DD
2
where
dissipation per 10 4 300 f
i
+∑ (f
o
C
L
) × V
DD
2
f
i
= input freq. (MHz)
package (P) 15 12 000 f
i
+∑ (f
o
C
L
) × V
DD
2
f
o
= output freq. (MHz)
C
L
= load cap. (pF)
∑ (f
o
C
L
) = sum of outputs
V
DD
= supply voltage (V)