74LS47 BCD to 7-segment Decoder 16 pin DIP Driver IC

74LS47 BCD to 7-segment Common Anode 16 pin DIP Decoder Driver IC
The 74LS47 IC boasts a pair of active-low outputs tailored for driving common-anode LEDs or incandescent indicators. When fed a binary-coded decimal as input, it seamlessly transforms it into a corresponding pattern for illuminating a 7-segment display, showcasing the numerical range from zero to nine. This encoding process represents each digit’s value through its respective 4-bit binary sequence (BCD).
Furthermore, a BCD to 7 Segment decoder employs specialized combinational logic circuitry to effectuate the conversion of BCD decimal digits into the 7-segment display format.
This comprehensive guide provides detailed insights into the 74LS47 decoder, including pin configurations, working, circuit, and more details, offering a clear and informative overview of the functions of the 74LS47 IC.

Pin Description:

Pin No

Function

Name

1

BCD Input 2

A1

2

BCD Input 3

A2

3

Display test; Active low

LT

4

Ripple blanking output; Active low

RBO

5

Ripple blanking input; Active low

RBI

6

BCD Input 4

A3

7

BCD Input 1

A0

8

Ground (0V)

Ground

9

Segment outputs; Active low

e

10

d

11

c

12

b

13

a

14

g

15

f

16

Supply voltage; 5V (4.75V – 5.25V)

Vcc