HEF4522BF データシートの表示（PDF） - Philips Electronics
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HEF4522BF Datasheet PDF : 10 Pages
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Philips Semiconductors
Programmable 4-bit BCD down counter
SINGLE STAGE OPERATION
Divide-by-n; MR = LOW; CF = HIGH; CP1 = LOW
PL
P3
P2
P1
P0
DIVIDE
BY
TC OUTPUT
PULSE WIDTH
L
X
X
X
X
TC
H
H
H
H
TC
H
H
H
L
TC
H
H
L
H
TC
H
H
L
L
TC
H
L
H
H
TC
H
L
H
L
TC
H
L
L
H
TC
H
L
L
L
TC
L
H
H
H
TC
L
H
H
L
TC
L
H
L
H
TC
L
H
L
L
TC
L
L
H
H
TC
L
L
H
L
TC
L
L
L
H
TC
L
L
L
L
10
one clock
period
15
14
13
12
11
10
9
8
clock pulse
HIGH
7
6
5
4
3
2
1
no operation
Product specification
HEF4522B
MSI
January 1995
Fig.3 State diagram.
4
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