Topic

8 bit computer

10 videos. Ranked by independent recommendations, not by views.

1. 

   1 Using an EEPROM to replace combinational logic

   Ben Eater 15 people · 16 months · since Jun 2017

   Ben Eater programs a parallel EEPROM by hand and uses it as a lookup table to drive a seven-segment display in place of discrete logic.

2. 

   2 Astable 555 timer - 8-bit computer clock - part 1

   Ben Eater 10 people · 10 months · since Apr 2016

   Ben Eater explains the inner workings of the 555 timer and builds an adjustable astable clock for his 8-bit computer; popular with beginners following along on breadboards.

3. 

   3 JK flip-flop racing

   Ben Eater 6 people · 6 months · since Jul 2019

   Ben Eater builds a JK flip-flop and shows why it works only intermittently because of a race condition, cited to settle questions about his earlier latch schematic.

4. 

   4 8-bit CPU control logic: Part 1

   Ben Eater 5 people · 5 months · since Oct 2017

   First of three parts on control logic for Ben Eater's 8-bit computer, showing how control lines and microcode steps execute an instruction over several clock cycles.

5. 

   5 Testing our computer's registers - 8-bit register - Part 5

   Ben Eater 4 people · 4 months · since Mar 2017

   Part of Ben Eater's breadboard 8-bit computer, testing the register module with LEDs on the bus; often cited when builders hit marginal logic levels.

6. 

   6 Monostable 555 timer - 8-bit computer clock - part 2

   Ben Eater 3 people · 3 months · since May 2017

   An episode from an 8-bit computer build series, explaining how a 555 timer provides the clock and handles debouncing, praised for laying out the theory clearly.

7. 

   7 Build an Arduino EEPROM programmer

   Ben Eater 3 people · 3 months · since Apr 2019

   Ben Eater builds an Arduino Nano programmer for AT28C parallel EEPROMs, using shift registers for the address lines; people build it for their own projects.

8. 

   8 Designing and building a 1-bit register - 8 bit register - Part 3

   Ben Eater 3 people · 3 months · since Feb 2017

   Part of Ben Eater's 8 bit computer series, this one builds a register from D flip flops and is cited in questions about registers and RAM.

9. 

   9 Clock logic - 8-bit computer clock - part 4

   Ben Eater 3 people · 3 months · since Dec 2017

   A clock circuit for a homebrew 8-bit computer built from a 555 timer and logic gates, often copied by learners who then need help debugging it.

10. 

    10 RAM module build - part 1

    Ben Eater 3 people · 3 months · since Apr 2017

    Ben Eater builds the 74LS189 RAM module for his 8-bit computer; often cited in questions about the chip heating and LEDs driven without resistors.