Glue Logic Random Number Generator
A 0-7 random number generator using exclusively glue logic chips.
This is a random number generator made using only 3 glue logic ICs. How it works is that the 74161 4-bit counter constantly counts up at a rate of 1,000,000 times per second. When the button is pressed, the clock is disconnected from the counter through a AND gate implemented using NAND logic (7400). The number stopped on then is fed into the BCD to 7-segment decoder which drives the 7-segment display.
|74161||4-bit binary counter.||74xx grab bag|
|7400||Quad NAND gate.||74xx grab bag|
|CD3161E||BCD to 7-segment decoder||Vetco Electronics grab bag|
|1 MHz TLL Oscillator||Clock||eBay|
|Push Button||Stop button||Broken alarm clock|
|Resistor||Stop button pull up resistor||Vetco Electronics grab bag|
|7-Segment Display||Number display||Unknown|
- (10/6/20) Project Build