HEF4511BD 데이터 시트보기 (PDF) - Philips Electronics
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HEF4511BD Datasheet PDF : 11 Pages
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Philips Semiconductors
BCD to 7-segment latch/decoder/driver
Product specification
HEF4511B
MSI
Fig.6 Logic diagram (one latch); see also Fig.5.
FUNCTION TABLE
INPUTS
OUTPUTS
EL BI LT DD DC DB DA Oa
Ob
Oc
Od
Oe
Of Og DISPLAY
XXL
X
X
X
X
H
H
H
H
H
H
H
8
XLH X
X
X
X
L
L
L
L
L
L
L
blank
LHH L
L
L
L
H
H
H
H
H
H
L
0
LHH L
L
L
H
L
H
H
L
L
L
L
1
LHH L
L
H
L
H
H
L
H
H
L
H
2
LHH L
L
H
H
H
H
H
H
L
L
H
3
LHH L
H
L
L
L
H
H
L
L
H
H
4
LHH L
H
L
H
H
L
H
H
L
H
H
5
LHH L
H
H
L
L
L
H
H
H
H
H
6
LHH L
H
H
H
H
H
H
L
L
L
L
7
LHH H
L
L
L
H
H
H
H
H
H
H
8
LHH H
L
L
H
H
H
H
L
L
H
H
9
LHH H
L
H
L
L
L
L
L
L
L
L
blank
LHH H
L
H
H
L
L
L
L
L
L
L
blank
LHH H
H
L
L
L
L
L
L
L
L
L
blank
LHH H
H
L
H
L
L
L
L
L
L
L
blank
LHH H
H
H
L
L
L
L
L
L
L
L
blank
LHH H
H
H
H
L
L
L
L
L
L
L
blank
HHH X
X
X
X
*
*
Note
1. H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
X = state is immaterial
* Depends upon the BCD code applied during the LOW to HIGH transition of EL.
January 1995
4
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