190 BCD to Hex 7-Segment Decoder
190 : BCD to Hex 7-Segment Decoder
- Author: JinGen Lim
- Description: Converts a 4-bit BCD input into a hexadecimal 7-segment display output
- GitHub repository
- Open in 3D viewer
- Clock: 0 Hz
How it works
The IC accepts four binary-coded decimal input signals, and generates a corresponding hexadecimal 7-segment output signal. Segment outputs may be inverted with the INVERT pin to support both common cathode/anode displays.
How to test
Connect the segment outputs to a 7-segment display. Configure the input (IN0:0, IN1:2, IN2:4, IN3:8). The input value will be shown on the 7-segment display
External hardware
7-segment display
IO
| # | Input | Output |
|---|---|---|
| 0 | input 1 (BCD 1) | segment a |
| 1 | input 2 (BCD 2) | segment b |
| 2 | input 3 (BCD 4) | segment c |
| 3 | input 4 (BCD 8) | segment d |
| 4 | decimal dot (passthrough) | segment e |
| 5 | output invert | segment f |
| 6 | segment g | |
| 7 | segment dot |