M74HC4543B1R Просмотр технического описания (PDF) - STMicroelectronics
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M74HC4543B1R Datasheet PDF : 10 Pages
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M74HC4543
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1
5, 3, 2, 4
6
7
9, 10, 11, 12,
13, 15, 14
8
16
SYMBOL
LD
A to D
PH
BI
a to g
NAME AND FUNCTION
Latch Disable Input
(Active HIGH)
Address (Data) Inputs
Phase Input (Active
HIGH)
Blanking Input (Active
HIGH)
Segment Outputs
GND
VCC
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUT
OUTPUT
LD BI PH D C B A a
b
c
d
e
f
g
X
H
L
X
X
X
X
L
L
L
L
L
L
L
H
L
L
L
L
L
L
HHHH
HH
L
H
L
L
L
L
L
H
L
HH
L
L
L
L
H
L
L
L
L
H
L
HH
L
H
H
L
H
H
L
L
L
L
H
HHHHH
L
L
H
H
L
L
L
H
L
L
L
HH
L
L
HH
H
L
L
L
H
L
H
H
L
H
H
L
H
H
H
L
L
L
H
H
L
H
L
H
H
H
H
H
H
L
L
L
HH
HHHH
L
L
L
L
H
L
L
H
L
L
L
H
H
H
H
H
H
H
H
L
L
H
L
L
H
H
H
H
H
L
H
H
H
L
L
H
L
H
X
L
L
L
L
L
L
L
H
L
L
HHX
X
L
L
L
L
L
L
L
L
L
L
X
X
X
X
#####
↑
↑
H
↑
INVERSE OF ABOVE OUTPUT LEVEL
X : Don’t Care
↑ : Same as above combinations
### : Depends upon the BCD code previously applied when LD =’H’
DISPLAY MODE
BLANK
0
1
2
3
4
5
6
7
8
9
BLANK
BLANK
#####
DISPLAY AS
ABOVE
2/10
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