MC14511B Datasheet, PDF (2/12 Pages) ON Semiconductor – BCD-To-Seven Segment Latch/Decoder/Driver

MC14511B
This device contains protection circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised
v v ^{that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high–impedance circuit. A}
destructive high current mode may occur if V_in and V_out are not constrained to the range V_SS (V_in or V_out) V_DD.
Due to the sourcing capability of this circuit, damage can occur to the device if V_DD is applied, and the outputs are shorted to V_SS and are at a
logical 1 (See Maximum Ratings).
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either V_SS or V_DD).
PIN ASSIGNMENT
B1
C2
LT 3
BI 4
LE 5
D6
A7
16 V_DD
15 f
14 g
13 a
12 b
11 c
a
f gb
e
c
d
10 d
V_SS 8
9e
DISPLAY
012 345 6789
TRUTH TABLE
Inputs
Outputs
LE BI LT D C B A a b c d e f g
X X0 X X X X 1 1 1 1 1 1 1
X 01 X X X X 0 0 0 0 0 0 0
0 11 0 0 0 0 1 1 1 1 1 1 0
0 11 0 0 0 1 0 1 1 0 0 0 0
0 11 0 0 1 1 1 1 1 1 0 0 1
0 11 0 0 1 1 1 1 1 1 0 0 1
0 11 0 1 0 0 0 1 1 0 0 1 1
0 11 0 1 0 1 1 0 1 1 0 1 1
0 11 0 1 1 0 0 0 1 1 1 1 1
0 11 0 1 1 1 1 1 1 0 0 0 0
0 11 1 0 0 0 1 1 1 1 1 1 1
0 11 1 0 0 1 1 1 1 0 0 1 1
0 11 1 0 1 0 0 0 0 0 0 0 0
0 11 1 0 1 1 0 0 0 0 0 0 0
0 11 1 1 0 0 0 0 0 0 0 0 0
0 11 1 1 0 1 0 0 0 0 0 0 0
0 11 1 1 1 0 0 0 0 0 0 0 0
0 11 1 1 1 1 0 0 0 0 0 0 0
1 11 X X X X
*
X = Don’t Care
* Depends upon the BCD code previously applied when LE = 0
Display
8
Blank
0
1
2
3
4
5
6
7
8
9
Blank
Blank
Blank
Blank
Blank
Blank
*
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