2 layers90 × 65 mm
2 layers
Clockmodule flipflop
JopjeKnopje/clockmoduleClock Module
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 45
- Nets
- 48
- Pads
- 150
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 6 (file 20220308)
- Created
- 29 Mar 2022
- Updated
- 6 Aug 2024
Overview
Clockmodule flipflop is an open-source printed circuit board by JopjeKnopje, from the JopjeKnopje/clockmodule repository on GitHub. It is a 2-layer board with 45 parts on 48 nets.
It is built around the NE555P and 74HC86D. Its parts include 14 capacitors, 9 resistors, 7 ICs, 5 diodes and 3 connectors. It belongs with the lEDs and displays boards of this library.
Main components
2README
README.mdClock Module
The idea behind this project is to have a standalone clock circuit to debug ICs at a very low clock speed.
It is mainly inspired by Ben Eater's version.
Features
- Manual pulse Mode.
- Variable frequency clock.
- DC Input Jack 7v - 15v @ approx. 100mA.
- Raw 5v power in for breadboard compatability.
- Lots of LEDs :)
Parts
- 2x 0.01uF - Ceramic Capacitor
- 2x 4.7uF - Capacitor
- 1x 470uF - Capacitor
- 1x .33uF - Ceramic Capacitor
- 4x .1uF - Ceramic Capacitor
- 1x 1uF - Capacitor
- 1x 1N4007 - Diode
- 4x 5mm LED
- 2x 01x02 Female Pin header
- 1x DC Jack
- 6x 1K - Resistor
- 2x 51K - Resistor
- 2x 10K - Resistor
- 1x 100K - Potentiometer linear
- 2x Button
- 3x NE555P
- 1x L7805
- 1x 7400
What does it look like
KiCad Render
Todo
- Use CMOS ICs for a 5vpp output
- Add partslist
- Add photos
- Swap silkscreen position of c3 and c4
- Different footprint for c8
Parts
45| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4, R6, R7, R9 |
| 6 | .1uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C5, C6, C7, C8, C9, C11 |
| 4 | LED | LED_THT:LED_D5.0mm | D2, D3, D4, D5 |
| 4 | MountingHole | MountingHole:MountingHole_4.3mm_M4 | H1, H2, H3, H4 |
| 3 | 0.01uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C10, C13 |
| 3 | 4.7uF | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C2, C12, C14 |
| 3 | NE555P | Package_DIP:DIP-8_W7.62mm | U1, U6, U7 |
| 2 | 51K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R5, R8 |
| 2 | Conn_01x02_Female | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J1, J2 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1, SW2 |
| 1 | .33uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C4 |
| 1 | 100K | Potentiometer_THT:Potentiometer_Alps_RK09K_Single_Vertical | RV1 |
| 1 | 1N4007 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1 |
| 1 | 470 | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C3 |
| 1 | 74HC86 | Package_DIP:DIP-14_W7.62mm | U5 |
| 1 | 74LS08 | Package_DIP:DIP-14_W7.62mm | U4 |
| 1 | 74LS107 | Package_DIP:DIP-14_W7.62mm | U2 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_GCT_DCJ200-10-A_Horizontal | J3 |
| 1 | L7805_J | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | U3 |
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Questions
What parts does the Clockmodule flipflop use?
45 parts, built around the NE555P and 74HC86D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Clockmodule flipflop KiCad files?
From the JopjeKnopje/clockmodule repository on GitHub, at the commit this page was made from: the board is rev-0.1/clockmodule_flipflop.kicad_pcb and its schematic rev-0.1/clockmodule.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clockmodule flipflop design in my own project?
Its repository states no licence, so its author keeps all rights: ask JopjeKnopje before reusing the design.