Content for 74LS47

74LS47

The '46A, '47A, and 'LS47 feature active-low outputs designed for driving, common-anode LEDs or incandescent indicators directly. All of the circuits have full ripple-blanking input/output controls and a lamp test input. Display patterns for BCD input counts above 9 are unique symbols to authenticate input conditions.

7400 Series Logic Clock

“This project is 7400 series logic ICs based clock. It keeps time solely based on discrete logic ICs and a stable clock source. For the display LEDs, I am using common anode 7 segment displays. This variant is 0.56 …

Reloj - 7400 Series Digital Clock

“This project was inspired by my dad’s university digital systems project from the late 1970’s. I found the writeup and schematic and decided to try and re-create it. You can see the results of the breadboard reproduction and …

Dot Jump Game (without Using Arduino)

“Hi there! I am Shivansh, a student at IIIT-Hyderabad. I am here with my first instructable which is a game inspired from Google Chrome’s Dinosaur Jump game. The game is simple: Jump across incoming obstacles in order to …

Shift Register With 7 Segment Display

“This circuit takes the input of the shift register and outputs the binary representation to 4 LEDs and a 7-segment display. It incorporates a 4-bit bidirectional shift register, BCD to 7-segment display driver, a 7-segment common anode display, a line …

DIY Bike Speedometer

“I just finished my latest project: A speedometer for my bike. It uses an attiny84 chip as its main processor and an 74ls47 chip as a driver for its 7-Segment Display (7SD from now on). If you have the parts …