Tiny Tapeout > Tiny Tapeout Chips > Tiny Tapeout IHP 26a > 551 tinytapeout_henningp_2bin_to_4bit_decoder
551 tinytapeout_henningp_2bin_to_4bit_decoder
551 : tinytapeout_henningp_2bin_to_4bit_decoder
- Author: Henning Petersen
- Description: 2bin_to_4bit_decoder
- GitHub repository
- Open in 3D viewer
- View in Wokwi
- Clock: 0 Hz
How it works
This is a decoder that converts 2 binary numbers into 4 logic outputs Suppose we connect the design to an input switch and a 7 segment LED display sw0 sw1 -> out0 out1 out2 out3
0 0 -> 0 0 0 1 0 1 -> 0 0 1 0 1 0 -> 0 1 0 0 1 1 -> 1 0 0 0
The time for the task was very tight! so a certain binary setting may turn on a different LED An example: 0 0 -> 0 1 0 0 (Another LED is turning on, but except this mix, it works as desired
How to test
IN1 and IN2 from the test PCB equals sw0 and sw1 OUT0 OUT1 OUT2 OUT3 equals out0 out1 out2 out3 Instuctions: Switch on IN1 and IN2 as desired, and see one of 4 LED segments light up
External hardware
List external hardware used in your project (e.g. PMOD, LED display, etc), if any DIP switch and LED segment
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | input A | out0 | |
| 1 | input B | out 1 | |
| 2 | out 2 | ||
| 3 | out 3 | ||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 |