C64LED-latched
rdoetjes·tuts·asm/c64/io_latch/schematic/C64LED-latched.kicad_pcb
About the C64LED-latched PCB
C64LED-latched is an open source PCB design by rdoetjes, published on GitHub. It is a 2-layer board measuring 40.6 × 48.3 mm, with 16 components from 12 distinct parts.
Other key parts include the 74LS573 and L7805. By type, the board carries 4 resistors, 3 ICs, 3 capacitors, 2 connectors, 1 transistor and 1 diode.
From the project
Assembly of random tutorials, that can be referenced in videos and YT comments
In the underlying directories, you will find software I have written for training videos and other tutorials. Many of these videos are on https://www.youtube.com/channel/CallousCoder
Many different languages are covered, ranging from MUMPS (M) to modern day languages like Zig (which I adore) and Rust. All these tutorials are based around small (private) projects, that I either created purposely for videos or have been created for small private projects.

Main components on the C64LED-latched
C64LED-latched bill of materials (BOM)
16 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74LS573 | DIP-20_W7.62mm_Socket | U1, U2 |
| 1 | L7805 | TO-220-3_Vertical | U3 |
| 1 | BC547 | TO-92_Inline | Q1 |
| 1 | Conn_01x10_Male | PinHeader_1x10_P2.54mm_Vertical | J1 |
| 1 | Barrel_Jack | BarrelJack_CUI_PJ-063AH_Horizontal_CircularHoles | J2 |
| 2 | HDSP-4830_2 | HDSP-4830 | BAR1, BAR2 |
| 1 | GP0240 | D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | .1uF | C_Disc_D6.0mm_W2.5mm_P5.00mm | C1 |
| 2 | .1uF | C_Disc_D5.0mm_W2.5mm_P2.50mm | C2, C3 |
| 1 | 100K | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1 |
| 1 | 1K | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2 |
| 2 | R_Network08 | R_Array_SIP9 | RN1, RN2 |
C64LED-latched design files
The KiCad project lives in the rdoetjes/tuts repository on GitHub; these links point at the commit this page was built from.
C64LED-latched: common questions
How big is the C64LED-latched PCB?
The C64LED-latched measures 40.6 × 48.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the C64LED-latched?
16 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the C64LED-latched design files?
From the rdoetjes/tuts repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the C64LED-latched design in my own project?
The repository has no license, so all rights stay with rdoetjes. Use it as a reference, and ask the author before reusing the design.