ENIAC
About the ENIAC PCB
ENIAC is an open source PCB design by parsa-novin, published on GitHub. It is a 4-layer board measuring 105.5 × 63.5 mm, with 149 components from 69 distinct parts.
Other key parts include the AS215-92, HMC361S8GE, BMT321, LMX2541SQ3320E/NOPB and TL780-05CKTTR. By type, the board carries 81 capacitors, 20 inductors, 19 resistors, 14 ICs, 3 connectors and 2 transistors.
Main components on the ENIAC
ENIAC bill of materials (BOM)
149 components, 69 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | AS215-92 | SOT-363_SC-70-6_Handsoldering | U1, U14 |
| 1 | HMC361S8GE | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm_ThermalVias | U2 |
| 1 | BMT321 | VQFN-12-1EP_4x4mm_P0.8mm_EP2.1x2.1mm_ThermalVias | U3 |
| 1 | LMX2541SQ3320E/NOPB | SQA36A | U4 |
| 2 | TL780-05CKTTR | TO-263-3_TabPin4 | U5, U6 |
| 2 | NCV8163ASN330T1G | TSOT-23-5 | U7, U8 |
| 1 | SX1281IMLTRT | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm_ThermalVias | U9 |
| 1 | LT5560 | DFN-8-1EP_3x3mm_P0.5mm_EP1.66x2.38mm | U10 |
| 1 | QPL9504 | DFN-8-1EP_2x2mm_P0.5mm_EP0.8x1.6mm | U11 |
| 1 | PCA9536DP | TSSOP-8_3x3mm_P0.65mm | U12 |
| 1 | QPC6713 | QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm_ThermalVias | U13 |
| 2 | MMBT3904 | SOT-23 | Q1, Q2 |
| 1 | ECS-TXO-2520-33-400-AN-TR | OSC_ECS-TXO-2520-33-400-AN-TR | Y1 |
| 1 | ABM11-142-27.120MHZ-T3 | XTAL_ABM11-142-27.120MHZ-T3 | Y2 |
| 1 | B6B-XH-A | JST_EH_S6B-EH_1x06_P2.50mm_Horizontal | J1 |
| 1 | Conn_01x07_Pin | PinHeader_1x07_P2.54mm_Vertical | J2 |
| 1 | Conn_Coaxial | SMA_Molex_73251-1153_EdgeMount_Horizontal | J3 |
| 1 | B39242B9413K610 | FIL_AFS14A04-1575.42-T3 | FL1 |
| 3 | AFII-SW-0059 | FIL_AFS14A04-1575.42-T3 | FL2, FL3, FL4 |
| 1 | LFCN-1325 | Filter_Mini-Circuits_FV1206 | FL5 |
Show 49 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1720BL15B0050E-AEC | SMT_15B0050E_JOT | TR1 |
| 1 | 1720BL15B0050001E | SMT_15B0050E_JOT | TR2 |
| 1 | RS1K | D_SMA | D1 |
| 7 | FerriteBead | L_0402_1005Metric_Pad0.77x0.64mm_HandSolder | FB1, FB2, FB3, FB4, FB5, FB6, FB7 |
| 1 | 10nH | L_0603_1608Metric | L1 |
| 1 | 22nH | L_0603_1608Metric | L2 |
| 1 | 33nH | L_0603_1608Metric | L3 |
| 3 | 3.9nH | L_0603_1608Metric | L4, L6, L7 |
| 1 | 15uH | L_0603_1608Metric | L5 |
| 4 | JP | L_0603_1608Metric | L8, L10, L11, L12 |
| 1 | 18nH | L_0603_1608Metric | L9 |
| 1 | 0 | L_0603_1608Metric | L13 |
| 6 | 100pF | C_0603_1608Metric | C1, C2, C3, C4, C16, C20 |
| 1 | 10uF | C_0603_1608Metric | C5 |
| 4 | 1nF | C_0603_1608Metric | C6, C63, C65, C71 |
| 14 | 1uF | C_0603_1608Metric | C7, C17, C18, C32, C38, C39, C44, C45 +6 |
| 5 | 47pF | C_0603_1608Metric | C8, C24, C57, C76, C80 |
| 17 | NC | C_0603_1608Metric | C9, C10, C11, C12, C13, C15, C21, C53 +9 |
| 1 | 47nF | C_0603_1608Metric | C14 |
| 1 | 1.2pF | C_0603_1608Metric | C19 |
| 1 | 6.8pF | C_0603_1608Metric | C22 |
| 1 | 3.3pF | C_0603_1608Metric | C23 |
| 12 | 0.1uF | C_0603_1608Metric | C25, C26, C27, C28, C30, C31, C33, C34 +4 |
| 1 | 4.7uF | C_0603_1608Metric | C29 |
| 1 | 270nF | C_0603_1608Metric | C40 |
| 1 | 4.7nF | C_0603_1608Metric | C41 |
| 2 | .22uF | C_0603_1608Metric | C42, C43 |
| 2 | .33uF | C_0603_1608Metric | C48, C49 |
| 2 | 10nF | C_0603_1608Metric | C50, C52 |
| 1 | 470nF | C_0603_1608Metric | C51 |
| 2 | 100nF | C_0603_1608Metric | C54, C55 |
| 2 | 68pF | C_0603_1608Metric | C59, C72 |
| 1 | 1pF | C_0603_1608Metric | C60 |
| 2 | 10pF | C_0603_1608Metric | C62, C66 |
| 1 | 2.2pF | C_0603_1608Metric | C74 |
| 1 | 300 | R_0603_1608Metric | R1 |
| 1 | 430 | R_0603_1608Metric | R2 |
| 1 | 82 | R_0603_1608Metric | R3 |
| 2 | 330 | R_0603_1608Metric | R4, R6 |
| 1 | 18 | R_0603_1608Metric | R5 |
| 2 | 4.7 | R_0603_1608Metric | R7, R10 |
| 1 | 10 | R_0603_1608Metric | R8 |
| 2 | 51 | R_0603_1608Metric | R9, R11 |
| 1 | 150 | R_0603_1608Metric | R12 |
| 1 | 22 | R_0603_1608Metric | R13 |
| 1 | 3.9k | R_0603_1608Metric | R14 |
| 2 | 10k | R_0603_1608Metric | R15, R18 |
| 2 | 1k | R_0603_1608Metric | R16, R19 |
| 1 | 3 | R_0603_1608Metric | R17 |
ENIAC design files
The KiCad project lives in the parsa-novin/UGA-IREC repository on GitHub; these links point at the commit this page was built from.
- LayoutKiCad/ENIAC/ENIAC.kicad_pcb
- SchematicKiCad/ENIAC/ENIAC.kicad_sch
ENIAC: common questions
How big is the ENIAC PCB?
The ENIAC measures 105.5 × 63.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ENIAC?
149 components, from 69 distinct parts. The full bill of materials is listed on this page.
Where can I download the ENIAC design files?
From the parsa-novin/UGA-IREC repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the ENIAC design in my own project?
The repository has no license, so all rights stay with parsa-novin. Use it as a reference, and ask the author before reusing the design.
More boards in UGA-IREC
STM32C6v1.0
127 × 127 mm140 parts4LNo license2
STM32Commodore 6
127 × 127 mm128 parts4LNo license2- schematic only · 81 parts
Commodore 7.67
81 parts2LNo license2 
EGSE2
101.6 × 81.3 mm79 parts4LNo license2
Bustingballscrazystylenolube
101.6 × 81.3 mm73 parts2LNo license2
AVR/ArduinoSatNOGS Rotator Controller v2.4
100 × 80 mm66 parts2LNo license2
C4
127 × 127 mm63 parts4LNo license2
PICCommodore 7
46.8 × 64.2 mm48 parts4LNo license2
STM32G6
127 × 127 mm45 parts4LNo license2
Pranav's Test Board
20.5 × 2.6 mm6 parts2LNo license2
Sasha test
30.5 × 17.5 mm3 parts2LNo license2