Huhhhh I didnt save
ethanjamesauto·modular_8bit_computer·processor_attempt_3/huhhhh I didnt save.kicad_pcb
About the Huhhhh I didnt save PCB
Huhhhh I didnt save is an open source PCB design by ethanjamesauto, published on GitHub. It is a 2-layer board measuring 229.9 × 93.3 mm, with 365 components from 51 distinct parts.
Other key parts include the NE555D, 74LS161, 74LS574, 28C256 and 74LS245. By type, the board carries 142 resistors, 82 diodes, 65 connectors, 49 ICs, 14 capacitors and 12 transistors.
From the project
CPU card Protoboard card This card contains an onboard clock generator, address and data registers/buffers, and a protoboard area for testing designs. Bus interface modeling

Main components on the Huhhhh I didnt save
Huhhhh I didnt save bill of materials (BOM)
365 components, 51 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NE555D | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 4 | 74LS161 | DIP-16_W7.62mm_Socket | U2, U3, U4, U5 |
| 9 | 74LS574 | DIP-20_W7.62mm_Socket | U6, U7, U25, U26, U27, U44, U45, U47 +1 |
| 2 | 28C256 | DIP-28_W15.24mm_Socket | U18, U19 |
| 8 | 74LS245 | DIP-20_W7.62mm_Socket | U21, U23, U29, U30, U31, U48, U49, U50 |
| 3 | 74LS273 | DIP-20_W7.62mm_Socket | U24, U40, U41 |
| 1 | HM62256BLP | DIP-28_W15.24mm | U28 |
| 2 | 74LS283 | DIP-16_W7.62mm_Socket | U32, U39 |
| 6 | ~ | DIP-16_W7.62mm_Socket | U33, U34, U35, U36, U37, U38 |
| 2 | 74LS04 | DIP-14_W7.62mm_Socket | U42, U56 |
| 1 | 74HC688 | DIP-20_W7.62mm_Socket | U43 |
| 1 | HM62256BLP | SOIC-28W_7.5x18.7mm_P1.27mm | U46 |
| 1 | 74LS161 | SOIC-16_3.9x9.9mm_P1.27mm | U51 |
| 2 | 74LS00 | DIP-14_W7.62mm_Socket | U52, U53 |
| 1 | 74LS30 | DIP-14_W7.62mm_Socket | U55 |
| 4 | 74LS138 | DIP-16_W7.62mm_Socket | U57, U58, U59, U60 |
| 1 | 74LVC1G08 | SOT-23-6_Handsoldering | U61 |
| 12 | FDG1024NZ | SOT-23-6_Handsoldering | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +4 |
| 6 | Conn_01x03_Pin | PinHeader_1x03_P2.54mm_Vertical | J1, J31, J32, J33, J34, J69 |
| 1 | Conn_01x40_Pin | PinHeader_1x40_P2.54mm_Horizontal | J3 |
Show 31 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 10 | Conn_01x08_Pin | PinHeader_1x08_P2.54mm_Vertical | J4, J20, J22, J23, J24, J25, J26, J27 +2 |
| 9 | Conn_01x10_Pin | PinHeader_1x10_P2.54mm_Vertical | J7, J8, J9, J10, J11, J12, J13, J18 +1 |
| 4 | Conn_01x06_Pin | PinHeader_1x06_P2.54mm_Vertical | J14, J15, J16, J17 |
| 4 | Conn_01x01_Pin | PinHeader_1x01_P2.54mm_Vertical | J30, J35, J40, J42 |
| 30 | J | PinHeader_1x01_P2.54mm_Vertical | J36, J41, J43, J44, J45, J46, J47, J48 +22 |
| 1 | Clock_Aux_Latch_0 | PinHeader_1x01_P2.54mm_Vertical | J39 |
| 1 | 1 | R_1206_3216Metric | 5V_rsns1 |
| 37 | A0 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D17, D25, D33, D41, D49, D50, D51 +29 |
| 5 | A1 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2, D18, D26, D34, D42 |
| 5 | A2 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3, D19, D27, D35, D43 |
| 5 | A3 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4, D20, D28, D36, D44 |
| 6 | A4 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D5, D21, D29, D37, D45, D82 |
| 5 | A5 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D6, D22, D30, D38, D46 |
| 5 | A6 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D7, D23, D31, D39, D47 |
| 5 | A7 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D8, D24, D32, D40, D48 |
| 1 | A8 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D9 |
| 1 | A9 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D10 |
| 1 | A10 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D11 |
| 1 | A11 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D12 |
| 1 | A12 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D13 |
| 1 | A13 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D14 |
| 1 | A14 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D15 |
| 1 | A15 | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D16 |
| 1 | 5V_RAW | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D81 |
| 2 | C | C_1206_3216Metric | C1, C2 |
| 12 | 100nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C3, C4, C5, C6, C7, C9, C10, C11 +4 |
| 4 | R | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R141, R142 |
| 28 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R4, R6, R7, R11, R12, R13, R14 +20 |
| 24 | 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R8, R9, R10, R15, R16, R17, R18 +16 |
| 4 | 0 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R103, R104, R105, R106 |
| 82 | 470 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | r51, r52, r53, r54, r55, r56, r57, r58 +74 |
Huhhhh I didnt save design files
The KiCad project lives in the ethanjamesauto/modular_8bit_computer repository on GitHub; these links point at the commit this page was built from.
Huhhhh I didnt save: common questions
How big is the Huhhhh I didnt save PCB?
The Huhhhh I didnt save measures 229.9 × 93.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Huhhhh I didnt save?
365 components, from 51 distinct parts. The full bill of materials is listed on this page.
Where can I download the Huhhhh I didnt save design files?
From the ethanjamesauto/modular_8bit_computer repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Huhhhh I didnt save design in my own project?
The repository has no license, so all rights stay with ethanjamesauto. Use it as a reference, and ask the author before reusing the design.
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