HD74HC4543P Datasheet, PDF (2/9 Pages) Renesas Technology Corp – BCD-to-Seven Segment Latch/Decoder/Driver

HD74HC4543
Function Table
Inputs
Outputs
LD BI Ph*¹ D
C
B
A
a
b
c
d
e
f
g
Display
X
H
L
X
X
X
X
L
L
L
L
L
L
L
Blank
H
L
L
L
L
L
L
H
H
H
H
H
H
L
0
H
L
L
L
L
L
H
L
H
H
L
L
L
L
1
H
L
L
L
L
H
L
H
H
L
H
H
L
H
2
H
L
L
L
L
H
H
H
H
H
H
L
L
H
3
H
L
L
L
H
L
L
L
H
H
L
L
H
H
4
H
L
L
L
H
L
H
H
L
H
H
L
H
H
5
H
L
L
L
H
H
L
H
L
H
H
H
H
H
6
H
L
L
L
H
H
H
H
H
H
L
L
L
L
7
H
L
L
H
L
L
L
H
H
H
H
H
H
H
8
H
L
L
H
L
L
H
H
H
H
H
L
H
H
9
H
L
L
H
L
H
L
L
L
L
L
L
L
L
Blank
H
L
L
H
L
H
H
L
L
L
L
L
L
L
Blank
H
L
L
H
H
L
L
L
L
L
L
L
L
L
Blank
H
L
L
H
H
L
H
L
L
L
L
L
L
L
Blank
H
L
L
H
H
H
L
L
L
L
L
L
L
L
Blank
H
L
L
H
H
H
H
L
L
L
L
L
L
L
L
L
L
X
X
X
X
*²
Blank
*¹
Notes: 1. For liquid crystal readouts, apply a square wave to Ph.
For common cathode LED readouts, select Ph = L. For common anode LED readouts, select Ph = H
2. Depends upon the BCD coder previously applied when LD = H
a
fgb
e
c
d
Pin Arrangement
Latch
Disable
1
C2
B3
D4
A5
Phase 6
Blanking 7
GND 8
C ^LD
f
B
g
D
e
A
d
Ph
c
Bl
ab
(Top view)
16 VCC
15 f
14 g
13 e
12 d
11 c
10 b
9a
Rev.2.00 Mar 30, 2006 page 2 of 8