ICEBreaker Bitsy
About the ICEBreaker Bitsy PCB
ICEBreaker Bitsy is an open source FPGA PCB design by murkyshelf, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 35.6 × 17.8 mm, with 82 components from 59 distinct parts.
Its main chip is the ICE40UP5K-SG48ITR, from the FPGA family. Other key parts include the TLV75533PDBV, W25Q128JVS, W25Q128JVxxM and ICE40UP5K-SG48. By type, the board carries 37 connectors, 19 capacitors, 14 resistors, 6 ICs, 4 diodes and 1 crystal.
It belongs with the dev boards & breakouts designs in this gallery.
Main components on the ICEBreaker Bitsy
ICEBreaker Bitsy bill of materials (BOM)
82 components, 59 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ICE40UP5K-SG48ITR USBLC6-2 | SOT-666 | U1 |
| 1 | TLV75533PDBV TLV75533PDRV | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U2 |
| 1 | TLV75533PDBV TLV75512PDRV | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U3 |
| 1 | W25Q128JVS LY68L6400 | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | W25Q128JVxxM | WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm | U5 |
| 1 | ICE40UP5K-SG48 | QFN-48-1EP_7x7mm_Pitch0.5mm | U6 |
| 1 | 12MHz | Oscillator_SMD_SCTF_S2DXX-4Pin_2.5x2.0mm | X1 |
| 1 | USB_C | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | 0 | Pin_Header_Straight_Round_1x01_Castellated | P0 |
| 1 | 1 | Pin_Header_Straight_Round_1x01_Castellated | P1 |
| 1 | 2 | Pin_Header_Straight_Round_1x01_Castellated | P2 |
| 1 | 3 | Pin_Header_Straight_Round_1x01_Castellated | P3 |
| 1 | 4 | Pin_Header_Straight_Round_1x01_Castellated | P4 |
| 1 | 5 | Pin_Header_Straight_Round_1x01_Castellated | P5 |
| 1 | 6 | Pin_Header_Straight_Round_1x01_Castellated | P6 |
| 1 | 7 | Pin_Header_Straight_Round_1x01_Castellated | P7 |
| 1 | 8 | Pin_Header_Straight_Round_1x01_Castellated | P8 |
| 1 | 9 | Pin_Header_Straight_Round_1x01_Castellated | P9 |
| 1 | 10 | Pin_Header_Straight_Round_1x01_Castellated | P10 |
| 1 | 11 | Pin_Header_Straight_Round_1x01_Castellated | P11 |
Show 39 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 12 | Pin_Header_Straight_Round_1x01_Castellated | P12 |
| 1 | 13 | Pin_Header_Straight_Round_1x01_Castellated | P13 |
| 1 | 14 | Pin_Header_Straight_Round_1x01_Castellated | P14 |
| 1 | 15 | Pin_Header_Straight_Round_1x01_Castellated | P15 |
| 1 | 16 | Pin_Header_Straight_Round_1x01_Castellated | P16 |
| 1 | 17 | Pin_Header_Straight_Round_1x01_Castellated | P17 |
| 1 | 18 | Pin_Header_Straight_Round_1x01_Castellated | P18 |
| 1 | 19 | Pin_Header_Straight_Round_1x01_Castellated | P19 |
| 1 | 20 | Pin_Header_Straight_Round_1x01_Castellated | P20 |
| 1 | 21 | Pin_Header_Straight_Round_1x01_Castellated | P21 |
| 1 | 22 | Pin_Header_Straight_Round_1x01_Castellated | P22 |
| 1 | 23 | Pin_Header_Straight_Round_1x01_Castellated | P23 |
| 3 | GND | Pin_Header_Straight_Round_1x01_Castellated | P24, P25, P26 |
| 2 | 3V3 | Pin_Header_Straight_Round_1x01_Castellated | P27, P28 |
| 1 | VIN | Pin_Header_Straight_Round_1x01_Castellated | P29 |
| 1 | CDONE | Pin_Header_Straight_Round_1x01_Castellated | P30 |
| 1 | CRESET | Pin_Header_Straight_Round_1x01_Castellated | P31 |
| 1 | CS | Pin_Header_Straight_Round_1x01 | P36 |
| 1 | SCK | Pin_Header_Straight_Round_1x01 | P37 |
| 1 | MISO | Pin_Header_Straight_Round_1x01 | P38 |
| 1 | MOSI | Pin_Header_Straight_Round_1x01 | P39 |
| 1 | TACT | SW_SPST_3x4x2.5 | SW1 |
| 1 | RED | D_0603 | D1 |
| 1 | GRN | D_0603 | D2 |
| 1 | BLU | D_0603 | D3 |
| 1 | FM-B2020RGBA-HG | LED_TRI_2020 | D4 |
| 3 | 1u | C_0402 | C1, C15, C18 |
| 4 | 4u7 | C_0603 | C2, C3, C4, C5 |
| 9 | 100n | C_0402 | C6, C7, C8, C9, C10, C11, C12, C14 +1 |
| 2 | 10n | C_0402 | C13, C16 |
| 1 | 10u | C_0603 | C19 |
| 1 | 1M | R_0402 | R1 |
| 2 | 5k1 | R_0402 | R2, R3 |
| 2 | 22E | R_0402 | R4, R5 |
| 1 | 1k5 | R_0402 | R6 |
| 3 | 10k | R_0402 | R7, R8, R10 |
| 1 | 10k | R_Array_Convex_4x0402 | R9 |
| 3 | 2k2 | R_0402 | R11, R12, R13 |
| 1 | 100E | R_0402 | R14 |
ICEBreaker Bitsy design files
The KiCad project lives in the murkyshelf/fpga_dev_board repository on GitHub; these links point at the commit this page was built from.
ICEBreaker Bitsy: common questions
What microcontroller does the ICEBreaker Bitsy use?
The ICEBreaker Bitsy is built around the ICE40UP5K-SG48ITR, from the FPGA family.
How big is the ICEBreaker Bitsy PCB?
The ICEBreaker Bitsy measures 35.6 × 17.8 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ICEBreaker Bitsy?
82 components, from 59 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 ICEBreaker Bitsy design files?
From the murkyshelf/fpga_dev_board 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 ICEBreaker Bitsy design in my own project?
Yes, under the terms of its Apache-2.0 license, which murkyshelf chose for the repository.
Can I test firmware for the ICEBreaker Bitsy 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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