Proto1
About the Proto1 PCB
Proto1 is an open source PCB design by ehbc-project, published on GitHub. It is a 4-layer board measuring 254 × 254 mm, with 166 components from 68 distinct parts.
Other key parts include the MC68030R, MC68882FN, SIMM72, SST39SF040 and MAX232. By type, the board carries 66 capacitors, 42 ICs, 30 resistors, 14 connectors, 7 crystals and 7 inductors.
From the project
EHBC Proto1 board design file & VHDL codes
Main components on the Proto1
Proto1 bill of materials (BOM)
166 components, 68 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MC68030R | PGA128 | U1 |
| 1 | MC68882FN | PLCC-68_THT-Socket | U2 |
| 4 | SIMM72 | SIMM72 | U3, U4, U5, U6 |
| 2 | SST39SF040 | DIP-32_W15.24mm_Socket | U7, U8 |
| 2 | MAX232 | DIP-16_W7.62mm_Socket | U9, U12 |
| 1 | 74LS00 | DIP-14_W7.62mm_Socket | U10 |
| 1 | MC68681P | DIP-40_W15.24mm_Socket | U11 |
| 1 | PC8477BV | PLCC-68_THT-Socket | U13 |
| 1 | VT82C42 | DIP-40_W15.24mm_Socket | U14 |
| 1 | MX8315MC | DIP-14_W7.62mm_Socket | U15 |
| 1 | SYS_Header | PinHeader_2x06_P2.54mm_Vertical | U16 |
| 2 | 74LS04 | DIP-14_W7.62mm_Socket | U17, U40 |
| 1 | MC146818P | DIP-24_W10.16mm | U19 |
| 1 | 74LS348 | DIP-16_W7.62mm_Socket | U20 |
| 2 | MC68901P | DIP-48_W15.24mm_Socket | U21, U22 |
| 2 | PAL16L8 | DIP-20_W7.62mm_Socket | U23, U24 |
| 1 | CS4231A | PLCC-68_THT-Socket | U26 |
| 2 | MC33078 | DIP-8_W7.62mm_Socket | U27, U28 |
| 1 | EPF6016QC240 | PQFP-240_32.1x32.1mm_P0.5mm | U29 |
| 5 | 74LS573 | DIP-20_W7.62mm_Socket | U30, U33, U34, U43, U45 |
Show 48 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | 74LS245 | DIP-20_W7.62mm_Socket | U31, U32, U41, U42, U44 |
| 1 | 74LS148 | DIP-16_W7.62mm_Socket | U35 |
| 2 | MC68440FN | PLCC-68_THT-Socket | U36, U37 |
| 1 | 74LS139 | DIP-16_W7.62mm_Socket | U38 |
| 1 | 10M | Oscillator_DIP-14 | X1 |
| 1 | 4M | Oscillator_DIP-14 | X2 |
| 1 | 3.6864M | Oscillator_DIP-14 | X3 |
| 1 | 8M | Oscillator_DIP-14 | X4 |
| 1 | 14.31818M | Crystal_HC49-4H_Vertical | Y1 |
| 1 | 24.576M | Crystal_HC49-4H_Vertical | Y2 |
| 1 | 16.9344M | Crystal_HC49-4H_Vertical | Y3 |
| 3 | Bus_ISA_16bit | ATA_16bit | J1, J2, J3 |
| 2 | 5747840-4 | 57478404 | J4, J5 |
| 1 | IDC_FDD | IDC-Header_2x17_P2.54mm_Vertical | J6 |
| 1 | KMDGX-6SG/P-S4N KMDGX-6SG_P-S4N | KMDGX6SGPS4N | J7 |
| 1 | ATX-24 | Molex_Mini-Fit_Jr_5566-24A_2x12_P4.20mm_Vertical | J8 |
| 1 | TIMER0-3 | PinHeader_1x05_P2.54mm_Vertical | J9 |
| 1 | TIMER4-7 | PinHeader_1x05_P2.54mm_Vertical | J10 |
| 1 | AUDIO_DATA | PinHeader_2x05_P2.54mm_Vertical | J11 |
| 1 | STX-4335-5BGP-S1 | STX43355BGPS1 | J12 |
| 1 | MS_SEL | PinHeader_1x04_P2.54mm_Vertical | J13 |
| 1 | IDC_PATA | IDC-Header_2x20_P2.54mm_Vertical | J14 |
| 7 | L | L_Axial_L9.5mm_D4.0mm_P5.08mm_Vertical_Fastron_SMCC | L1, L2, L3, L4, L5, L6, L7 |
| 31 | 100n | C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2, C3, C4, C5, C6, C7, C8 +23 |
| 12 | 1u | C_Disc_D4.3mm_W1.9mm_P5.00mm | C11, C12, C14, C15, C16, C17, C18, C19 +4 |
| 1 | 47n | C_Disc_D4.3mm_W1.9mm_P5.00mm | C24 |
| 4 | 20p | C_Disc_D4.3mm_W1.9mm_P5.00mm | C26, C27, C36, C37 |
| 8 | 1u | CP_Radial_D5.0mm_P2.50mm | C30, C31, C35, C47, C49, C54, C56, C59 |
| 4 | 10u | CP_Radial_D5.0mm_P2.50mm | C39, C41, C45, C51 |
| 2 | 1n | C_Disc_D4.3mm_W1.9mm_P5.00mm | C42, C43 |
| 2 | 1.2n | C_Disc_D4.3mm_W1.9mm_P5.00mm | C44, C52 |
| 2 | 47p | C_Disc_D4.3mm_W1.9mm_P5.00mm | C53, C60 |
| 3 | 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R12, R13 |
| 1 | 55 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2 |
| 2 | 330 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3, R4 |
| 1 | 2 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R5 |
| 2 | 1.5k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R6, R11 |
| 2 | 11k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R7, R14 |
| 4 | 47k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R8, R10, R16, R18 |
| 3 | 22k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R9, R15, R19 |
| 1 | 5.1k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R17 |
| 3 | 10k | R_Array_SIP9 | RN1, RN2, RN7 |
| 1 | 10k | R_Array_SIP10 | RN3 |
| 1 | 4.7k | R_Array_SIP8 | RN4 |
| 2 | 4.7k | R_Array_SIP7 | RN5, RN6 |
| 1 | 33 | DIP-8_W7.62mm | RN8 |
| 1 | 10k | R_Array_SIP7 | RN9 |
| 2 | 10k | R_Array_SIP5 | RN10, RN11 |
Proto1 design files
The KiCad project lives in the ehbc-project/ehbc-proto1-board repository on GitHub; these links point at the commit this page was built from.
Proto1: common questions
How big is the Proto1 PCB?
The Proto1 measures 254 × 254 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Proto1?
166 components, from 68 distinct parts. The full bill of materials is listed on this page.
Where can I download the Proto1 design files?
From the ehbc-project/ehbc-proto1-board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Proto1 design in my own project?
The repository has no license, so all rights stay with ehbc-project. Use it as a reference, and ask the author before reusing the design.
