M74HC4511 Просмотр технического описания (PDF) - STMicroelectronics
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M74HC4511 Datasheet PDF : 13 Pages
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M74HC4511
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
3
4
5
7, 1, 2, 6
13, 12, 11,
10, 9, 15, 14
8
16
SYMBOL
LT
BI
LE
A to D
a to g
NAME AND FUNCTION
Lamp Test Input (Active
LOW)
Ripple Blanking Input
(Active LOW)
Latch Enable Input
BCD Address Inputs
Segment Outputs
GND
VCC
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUT
OUTPUT
DISPLAY MODE
LE BI LT D C B A a b
c
d
e
f
g
XX L XXXXHHHHHHH
X
L
HX
X
X
X
L
L
L
L
L
L
L
L
HH
L
L
L
L
HHHH
HH
L
L
HH
L
L
L
H
L
HH
L
L
L
L
L
HH
L
L
H
L
HH
L
H
H
L
H
L
HH
L
L
H
HHHHH
L
L
H
L
HH
L
H
L
L
L
HH
L
L
HH
L HHL HL HHL HH LHH
L
HH
L
HH
L
L
L
HHHHH
L
HH
L
HH
HHH
L
L
L
L
L
L
H
H
H
L
L
L
H
H
H
H
H
H
H
L
HHH
L
L
HHHH
L
L
HH
L
HHH
L
H
X
L
L
L
L
L
L
L
L
HHHHX
X
L
L
L
L
L
L
L
L
L
L
X
X
X
X
Hold the stage at the leading edge of LE
X : Don’t Care
8
BLANK
0
1
2
3
4
5
6
7
8
9
BLANK
BLANK
2/13
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