HEF4511BD Philips Semiconductors, HEF4511BD Datasheet - Page 4

• Manufacturer Part Number: HEF4511BD
• Description: BCD to 7-segment latch/decoder/driver
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FUNCTION TABLE
Note
1. H = HIGH state (the more positive voltage)
January 1995
EL
BCD to 7-segment latch/decoder/driver
X
X
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
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.
BI
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
X
L
LT
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
INPUTS
D
X
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
D
D
H
H
H
H
H
H
H
H
X
X
X
L
L
L
L
L
L
L
L
C
Fig.6 Logic diagram (one latch); see also Fig.5.
D
H
H
H
H
H
H
H
H
X
X
X
L
L
L
L
L
L
L
L
B
D
X
X
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
A
O
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
a
4
O
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
b
O
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
c
OUTPUTS
O
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
*
d
O
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
e
O
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
f
Product specification
HEF4511B
O
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
g
DISPLAY
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MSI
8
0
1
2
3
4
5
6
7
8
9
*