Karnix ASB-254
About the Karnix ASB-254 PCB
Karnix ASB-254 is an open source FPGA PCB design by Fabmicro-LLC, published on GitHub under the Custom license license. It is a 6-layer board measuring 85 × 56 mm, with 364 components from 87 distinct parts.
Its main chip is the LFE5U-25F-BG256C, from the FPGA family. Other key parts include the ST1S14, TLV62565DBVT, RS3236-2.5YF5, RS3236-3.3YF5 and AT24C01C-SSHM. By type, the board carries 177 resistors, 101 capacitors, 27 diodes, 17 ICs, 17 inductors and 4 transistors.
From the project
Karnaugh Interactive Extendable ASIC Simulation Board AKA Karnix ASB-254
1. Сократить число портов АЦП и ЦАП до 2+2 (плюс аудио). 2. Сагрегировать линии ЦАП и АЦП каждый в своем идином ращъеме JST 4пин. 3. Добавить тактовый сигнал для NOR Flash памяти. 4. Добавить разъем SD-карты (режим SPI). 5. Перенести кнопки в другое место, высвободить место под USB type A. 6. Добавить USB type A. 7. Добавить SDRAM 64МБ. 8. (-) Добавить сигнал LDAC на ЦАП.
Main components on the Karnix ASB-254
Karnix ASB-254 bill of materials (BOM)
364 components, 87 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ST1S14 STMicroelectronics | HSOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | TLV62565DBVT Texas Instruments Incorporated | SOT-23-5 | U2 |
| 1 | RS3236-2.5YF5 | SOT-23-5 | U3 |
| 1 | RS3236-3.3YF5 | SOT-23-5 | U4 |
| 1 | LFE5U-25F-BG256C Lattice Semiconductor | BGA256C80P16X16_1400X1400X170 | U5 |
| 1 | AT24C01C-SSHM ATMEL | SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | W25Q128JVPIQ Winbond | WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U7 |
| 1 | LAN8710AI Microchip | QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm | U8 |
| 1 | MAX487ECSA+ Maxime | SOIC-8_3.9x4.9mm_P1.27mm | U9 |
| 1 | ADC128S052CIMT | TSSOP-16_4.4x5mm_P0.65mm | U10 |
| 1 | AD5328BRUZ | TSSOP-16_4.4x5mm_P0.65mm | U11 |
| 4 | LM258A | SO-8_3.9x4.9mm_P1.27mm | U12, U14, U15, U16 |
| 1 | FT2232D | LQFP-48_7x7mm_P0.5mm | U20 |
| 1 | MT48LC32M16A2TG-75 | TSOP-II-54_22.2x10.16mm_P0.8mm | U21 |
| 1 | AO3401A | SOT-23 | Q1 |
| 3 | DMN3730 | SOT-23 | Q2, Q3, Q4 |
| 1 | 6MHz | Crystal_SMD_7050-4Pin_7.0x5.0mm | Y1 |
| 1 | 25 MHz AVX | Crystal_SMD_EuroQuartz_MT-4Pin_3.2x2.5mm | Y2 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | EEPROM RESET | PinHeader_1x02_P2.54mm_Vertical | J2 |
Show 67 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | HDMI_A_1.4 Amphenol | HDMI_A_Amphenol_10029449-x01xLF_Horizontal | J3 |
| 1 | Conn_01x07 | PinHeader_1x07_P2.00mm_Vertical | J4 |
| 3 | 0805L100WR | Fuse_0805_2012Metric | F1, F2, F3 |
| 1 | SW_DIP_x04 | SW_DIP_SPSTx04_Slide_Copal_CHS-04A_W5.08mm_P1.27mm_JPin | SW1 |
| 1 | SW_Push | SW_SPST_EVQPE1 | SW5 |
| 1 | SM13126PEL Bourns | SM13126PEL | TR1 |
| 1 | KLS2-126-5.00-02 | KLS2-126-5.00-2_Vertical | XS1 |
| 1 | DM3AT-SF-PEJM5 | HRS_DM3AT-SF-PEJM5 | XS2 |
| 1 | S2B-PH-K-S (LF)(SN) | JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | XS3 |
| 1 | RJHSE-5381 Amphenol | AMPHENOL_RJHSE-5381 | XS4 |
| 1 | Conn_02x20_Odd_Even | PinHeader_2x20_P2.54mm_Vertical | XS5 |
| 1 | S2B-PH-K-S (LF)(SN) | JST_PH_S4B-PH-K_1x04_P2.00mm_Horizontal | XS6 |
| 1 | USBA-2J | USBA-2J | XS7 |
| 1 | S4B-PH-K-S(LF)(SN) | JST_PH_S4B-PH-K_1x04_P2.00mm_Horizontal | XS10 |
| 1 | SJ-43516-SMT-BE | CUI_SJ-43516-SMT-BE | XS12 |
| 6 | FYLS-0603PGC | LED_0603_1608Metric | D1, D2, D3, D4, D5, D6 |
| 1 | BZV55-B10 | D_SOD-80 | D7 |
| 2 | STPS2L40AF | D_SMA_FLAT | D8, D23 |
| 1 | SMAJ40CA | D_SMA | D9 |
| 15 | PGB1010603NRHF | Fuse_0603_1608Metric | D10, D11, D12, D13, D14, D15, D16, D17 +7 |
| 2 | CRS08 | D_SOD-123F | D21, D22 |
| 1 | 10uH/2.3A | IHLP-2020 | L1 |
| 1 | 2.2uH/2.5A | Murata_LQH44PN | L2 |
| 15 | 330R/1.2A | L_0603_1608Metric | L3, L4, L5, L6, L7, L8, L9, L10 +7 |
| 1 | 3.3nF/50V | C_0402_1005Metric | C1 |
| 1 | 560pF/50V | C_0402_1005Metric | C2 |
| 2 | 100uF/25V | CP_EIA-7343-43_Kemet-X | C3, C5 |
| 7 | 22uF/10V | C_0805_2012Metric | C4, C11, C12, C42, C46, C65, C69 |
| 42 | 0.1uF/50V | C_0402_1005Metric | C6, C32, C34, C35, C37, C38, C39, C40 +34 |
| 1 | DNM | C_0805_2012Metric | C7 |
| 6 | 1uF/16V | C_0402_1005Metric | C8, C9, C14, C15, C64, C87 |
| 7 | 10uF/10V | C_0603_1608Metric | C10, C48, C82, C83, C85, C89, C90 |
| 4 | 0.01uF/50V | C_0402_1005Metric | C13, C16, C74, C78 |
| 20 | 4.7uF/6.3V | C_0402_1005Metric | C17, C18, C19, C20, C21, C22, C23, C24 +12 |
| 1 | 0.47uF/50V | C_0603_1608Metric | C49 |
| 4 | 15pF/50V | C_0402_1005Metric | C50, C51, C52, C53 |
| 1 | 1000pF/100V | C_1206_3216Metric | C54 |
| 1 | 22uF/25V | C_0805_2012Metric_slim | C71 |
| 1 | 22uF/25V | C_0805_2012Metric | C77 |
| 2 | 27pF/50V | C_0402_1005Metric | C101, C102 |
| 4 | 220R/1% | R_0402_1005Metric | R1, R7, R13, R20 |
| 38 | 10K/1% | R_0402_1005Metric | R2, R8, R14, R19, R45, R46, R48, R49 +30 |
| 31 | 51R/1% | R_0402_1005Metric | R3, R4, R5, R6, R9, R10, R11, R12 +23 |
| 7 | 5.1K/1% | R_0402_1005Metric | R37, R121, R154, R160, R162, R174, R176 |
| 1 | 33K/1% | R_0402_1005Metric | R38 |
| 1 | 3K/1% | R_0402_1005Metric | R39 |
| 1 | 10.5K/1% | R_0402_1005Metric | R40 |
| 2 | RC0402FR-0710KL 10K/1% | R_0402_1005Metric | R41, R122 |
| 1 | 47K/1% | R_0402_1005Metric | R42 |
| 1 | 15K/1% | R_0402_1005Metric | R43 |
| 1 | 18K/1% | R_0402_1005Metric | R44 |
| 4 | 510R/1% | R_0402_1005Metric | R53, R54, R79, R178 |
| 13 | 110R/1% | R_0402_1005Metric | R55, R68, R69, R70, R71, R72, R73, R74 +5 |
| 1 | 1K/1% | R_0402_1005Metric | R63 |
| 7 | 1.5K/1% | R_0402_1005Metric | R66, R118, R119, R120, R159, R161, R182 |
| 1 | 12.1K/1% | R_0402_1005Metric | R80 |
| 2 | 330R/1% | R_0402_1005Metric | R81, R103 |
| 6 | DNM | R_0402_1005Metric | R84, R85, R89, R90, R94, R95 |
| 13 | 49.9R/1% | R_0402_1005Metric | R96, R97, R98, R99, R100, R110, R111, R112 +5 |
| 2 | 75R/1% | R_0402_1005Metric | R101, R102 |
| 1 | 120R/1% | R_0805_2012Metric | R106 |
| 8 | 11K/1% | R_0402_1005Metric | R123, R131, R135, R143, R149, R150, R151, R157 |
| 20 | 22R/1% | R_0402_1005Metric | R126, R127, R128, R137, R138, R153, R166, R168 +12 |
| 5 | 22K/1% | R_0402_1005Metric | R129, R133, R141, R145, R156 |
| 1 | 1M/1% | R_0402_1005Metric | R147 |
| 1 | 27K/1% | R_0402_1005Metric | R158 |
| 4 | 0R | R_0402_1005Metric | R163, R164, R165, R167 |
Karnix ASB-254 design files
The KiCad project lives in the Fabmicro-LLC/Karnix_ASB-254 repository on GitHub; these links point at the commit this page was built from.
Karnix ASB-254: common questions
What microcontroller does the Karnix ASB-254 use?
The Karnix ASB-254 is built around the LFE5U-25F-BG256C, from the FPGA family.
How big is the Karnix ASB-254 PCB?
The Karnix ASB-254 measures 85 × 56 mm, has 6 copper layers and is 1.6 mm thick.
How many components are on the Karnix ASB-254?
364 components, from 87 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Karnix ASB-254 design files?
From the Fabmicro-LLC/Karnix_ASB-254 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Karnix ASB-254 design in my own project?
It is published under Custom license, which limits how it may be reused; read the license before building on it.
Can I test firmware for the Karnix ASB-254 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug FPGA firmware against it before you order a PCB.
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