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Build an 8-Bit Computer by Ben Eater (Part 1) - Clock Module

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  • Jameco Part no.: 2286623
  • Manufacturer: Jameco KitPro/Eater.net
  • Manufacturer no.: KIT-BENEAT1
  • HTS code: 8542310000
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Build An 8-Bit Computer by Ben Eater - Clock Module (Kit 1 of 4)

The computer's clock is used to synchronize all operations. The clock you'll build in the kit is based on the popular 555 timer IC. The videos go into some detail on the operation of the 555 and how to use it in three different ways.

Our clock is speed-adjustable (from less than 1 Hz to a few hundred Hz). The clock can also be put into a manual mode where you push a button to advance each clock cycle. This will be a very useful feature for debugging the computer later on.

Kit Includes:

Part No.
Qty.
Description
149948
1
Switch Push Button Tactile SPST OFF-(ON) 15 VDC @ 20mA Actuator Height 0.13 Inch
151116
5
Capacitor Ceramic Disc 0.1µF 25V ±20%
15229
5
Ceramic Disc Capacitor 0.01µF 50V ±20% Z5U
1946367
5
10uF 25 Volt Radial Electrolytic Capacitor 20% 85c 5x11x5mm
2096018
1
140 Piece Wire Jumper Kit 22 AWG 14 Lengths 10 Colors
2161422
1
3/8 Inch Square Cermet Potentiometer 1MEG Ohms 1/2 Watt 1 Turn Thru Hole
2217772
1
5VDC 2 Amp 10 Watt Regulated Switching Wall Adapter Power Supply
2227209
1
2.1mm x 5.5mm Male DC Jack to Screw Terminal (Single)
2234071
5
LED Blue Diffused 5mm T-1 3/4 470nm 350mcd
2258831
1
3-Pin SPDT Slide Switch
2283767
1
830 Point Solderless Plug-in Breadboard with 4 Power Rails 21-26AWG ABS
27423
3
IC LM555CN Single Timer
330431
5
1µF 25V 20% Radial Capacitor 85C 5x11x1.5mm
46316
1
IC 74LS04 Hex Inverter
46375
1
IC 74LS08 Quad 2-Input Positive AND Gate
47466
1
IC 74LS32 Quad 2-Input Positive OR Gate
690700
5
Carbon Film Resistor 220 Ohm 1/4 Watt 5%
690865
5
Resistor Carbon Film 1k Ohm 1/4 Watt 5%
691585
5
Resistor Carbon Film 1.0M Ohm 1/4 Watt 5%
697549
10
LED Yellow Diffused 5mm (T-1 3/4) 588nm 29mcd 50VA

Resources & Downloads

Videos


8-bit Computer Clock (part 1) - Astable 555 Timer


8-bit Computer Clock (part 2) - Monostable 555 Timer


8-bit Computer Clock (part 3) - Bistable 555 Timer


8-bit Computer Clock (part 4) - Clock Logic


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Specification Value
Design LevelIntermediate Kit


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