74HC4511 Datasheet, PDF (4/12 Pages) NXP Semiconductors – BCD to 7-segment latch/decoder/driver

Philips Semiconductors
BCD to 7-segment latch/decoder/driver
Product specification
74HC/HCT4511
Fig.4 Functional diagram.
FUNCTION TABLE
INPUTS
LE BI LT D₄ D₃ D₂ D₁
X XL
X XX
X
XLH XXX X
L
HH L
LL
L
L
HH L
LL
H
L HH L L H L
L HH L L H H
L
HH L
HL
L
L
HH L
HL
H
L HH L HH L
L HH L HH H
L
HH H L L
L
L
HH H L L
H
L HH H L H L
L HH H L H H
L
HH H HL
L
L
HH H HL
H
L HH H HH L
L HH H HH H
H HH X XX X
OUTPUTS
Q_a
Q_b
Q_c
Q_d
Q_e Q_f
H
H
H
H
HH
L
L
L
L
L
L
H
H
H
H
HH
L
H
H
L
L
L
H
H
L
H
HL
H
H
H
H
L
L
L
H
H
L
L
H
H
L
H
H
L
H
L
L
H
H
HH
H
H
H
L
L
L
H
H
H
H
HH
H
H
H
L
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
(1)
Note
1. Depends upon the BCD-code applied during the LOW-to-HIGH transition of LE.
H = HIGH voltage level
L = LOW voltage level
X = don’t care
DISPLAY
Q_g
H
8
L
blank
L
0
L
1
H
2
H
3
H
4
H
5
H
6
L
7
H
8
H
9
L
blank
L
blank
L
blank
L
blank
L
blank
L
blank
(1)
December 1990
4