HEF4014B データシートの表示（PDF） - Philips Electronics
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HEF4014B Datasheet PDF : 6 Pages
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Philips Semiconductors
8-bit static shift register
Product specification
HEF4014B
MSI
PINNING
PE
parallel enable input
P0 to P7
DS
CP
parallel data inputs
serial data input
clock input (LOW to HIGH edge-triggered)
O5 to O7 buffered parallel outputs from the last three
stages
FUNCTION TABLES
Serial operation
INPUTS
n
CP
DS
PE
1
D1
L
2
D2
L
3
D3
L
6
X
L
7
X
L
8
X
L
X
X
OUTPUTS
O5
O6
O7
X
X
X
X
X
X
X
X
X
D1
X
X
D2
D1
X
D3
D2
D1
no change
Parallel operation
INPUTS
n
CP
DS
PE
1
X
H
OUTPUTS
O5
O6
O7
P5
P6
P7
X
X
no change
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
Dn = either HIGH or LOW
n = number of clock pulse transitions
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
Dynamic power
dissipation per
package (P)
VDD
V
TYPICAL FORMULA FOR P (µW)
5
900 fi + ∑ (foCL) × VDD2
where
10
4 300 fi + ∑ (foCL) × VDD2
fi = input freq. (MHz)
15
12 000 fi + ∑ (foCL) × VDD2
fo = output freq. (MHz)
CL = load cap. (pF)
∑ (foCL) = sum of outputs
VDD = supply voltage (V)
January 1995
4
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