8bit-Sch old-
About the 8bit-Sch old- PCB
8bit-Sch old- is an open source PCB design by Arvind595, published on GitHub. It is a 4-layer board measuring 246.4 × 185.4 mm, with 277 components from 40 distinct parts.
Other key parts include the LM555, 74LS04, 74LS08, 74LS32 and 74LS245. By type, the board carries 104 resistors, 85 diodes, 53 ICs, 24 capacitors, 8 switches and 1 connector.
Main components on the 8bit-Sch old-
8bit-Sch old- bill of materials (BOM)
277 components, 40 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | LM555 | DIP-8_W7.62mm | U1, U2, U3, U39 |
| 5 | 74LS04 | DIP-14_W7.62mm | U4, U28, U29, U49, U53 |
| 3 | 74LS08 | DIP-14_W7.62mm | U5, U23, U46 |
| 1 | 74LS32 | DIP-14_W7.62mm | U6 |
| 6 | 74LS245 | DIP-20_W7.62mm | U7, U10, U13, U17, U30, U36 |
| 8 | 74LS173 | DIP-16_W7.62mm | U8, U9, U11, U12, U14, U15, U19, U34 |
| 2 | 74LS86 | DIP-14_W7.62mm | U16, U18 |
| 2 | 74LS283 | DIP-16_W7.62mm | U20, U21 |
| 1 | 74LS02 | DIP-14_W7.62mm | U22 |
| 2 | 74189 | DIP-16_W7.62mm | U24, U25 |
| 4 | 74LS157 | DIP-16_W7.62mm | U26, U27, U32, U33 |
| 2 | 74LS00 | DIP-14_W7.62mm | U31, U51 |
| 2 | 74LS161 | DIP-16_W7.62mm | U35, U48 |
| 1 | 74LS76 | DIP-16_W7.62mm | U37 |
| 1 | 74LS139 | DIP-16_W7.62mm | U38 |
| 4 | 7SEGMENT_CC | 7SegmentLED_LTS6760_LTS6780 | U40, U41, U42, U43 |
| 1 | 74LS273 | DIP-20_W7.62mm | U44 |
| 3 | 28C16 | DIP-24_W15.24mm_Socket | U45, U47, U52 |
| 1 | 74LS138 | DIP-16_W7.62mm | U50 |
| 1 | USB_B | USB_B_OST_USB-B1HSxx_Horizontal | J1 |
Show 20 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1M | Potentiometer-5.5mm | RV1 |
| 2 | SW_Push | SW_PUSH_6mm_H5mm | SW1, SW4 |
| 3 | SW_SPDT | DPDT-pushbutton | SW2, SW6, SW7 |
| 1 | SW_DIP_x08 | SW_DIP_SPSTx08_Slide_9.78x22.5mm_W7.62mm_P2.54mm | SW3 |
| 1 | SW_DIP_x04 | SW_DIP_SPSTx04_Slide_9.78x12.34mm_W7.62mm_P2.54mm | SW5 |
| 1 | Reset | SW_PUSH_6mm_H5mm | SW8 |
| 1 | G*** | BenEater | svg2mod |
| 21 | BLUE | LED_D5.0mm | D1, D26, D27, D28, D29, D58, D59, D60 +13 |
| 44 | RED | LED_D5.0mm | D2, D3, D4, D5, D6, D7, D8, D9 +36 |
| 8 | YELLOW | LED_D5.0mm | D30, D31, D32, D33, D44, D45, D46, D47 |
| 12 | GREEN | LED_D5.0mm | D34, D35, D49, D50, D52, D53, D55, D56 +4 |
| 16 | 0.1µF | C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C3, C10, C11, C12, C13, C14, C15 +8 |
| 6 | 0.01µF | C_Disc_D4.3mm_W1.9mm_P5.00mm | C2, C4, C5, C7, C8, C9 |
| 1 | 1µF | CP_Radial_D5.0mm_P2.00mm | C6 |
| 1 | 10µF | CP_Radial_D5.0mm_P2.00mm | C24 |
| 10 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R5, R6, R58, R63, R64 +2 |
| 1 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 83 | 220 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7, R16, R17, R18, R19, R20, R21, R22 +75 |
| 9 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8, R9, R10, R11, R12, R13, R14, R15 +1 |
| 1 | 100K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R66 |
8bit-Sch old- design files
The KiCad project lives in the Arvind595/8bit-Sch-old- repository on GitHub; these links point at the commit this page was built from.
- Layout8bit-computer.kicad_pcb
8bit-Sch old-: common questions
How big is the 8bit-Sch old- PCB?
The 8bit-Sch old- measures 246.4 × 185.4 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the 8bit-Sch old-?
277 components, from 40 distinct parts. The full bill of materials is listed on this page.
Where can I download the 8bit-Sch old- design files?
From the Arvind595/8bit-Sch-old- repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the 8bit-Sch old- design in my own project?
The repository has no license, so all rights stay with Arvind595. Use it as a reference, and ask the author before reusing the design.