AS2650 board
About the AS2650 board
AS2650 board is an open source PCB design by AvalonSemiconductors, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 96.9 × 67.9 mm, with 76 components from 26 distinct parts.
Other key parts include the SN74LV1T34DCK, W25Q32FVSS, caravel-M.2-card, AMS1117-3.3 and IS61C256. By type, the board carries 37 resistors, 13 ICs, 11 capacitors, 6 connectors, 5 diodes and 2 switches.
From the project
Hardware and Software used during bring-up of the GFMPW-0 AS2650.
HW - PCB design for the custom bring-up board with 8KiB of SRAM
GAL - AND term listing for the GAL device on the PCB - Can be assembled using galette.
Firmware - Management Controller Firmware for the PCB - Must be used together with the headers and utils from caravel_board.
Programs - Programs written in AS2650 assembly - contains its own README.
Bugs - Contains a README documenting all silicon bugs, their severity, and possible workarounds.
Main components on the AS2650 board
AS2650 board bill of materials (BOM)
76 components, 26 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | SN74LV1T34DCK | SOT-353_SC-70-5 | U1, U2, U3, U4 |
| 2 | W25Q32FVSS | DIP-8_W7.62mm | U5, U13 |
| 1 | caravel-M.2-card | M.2-CONNECTOR-E | U6 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U7 |
| 1 | IS61C256 | DIP-28_W7.62mm | U8 |
| 1 | MCP1319MT-29LE-OT | PoR_5_SOT23 | U9 |
| 1 | TLC555xP | DIP-8_W7.62mm | U10 |
| 1 | MCP23S17_SS | SSOP-28_5.3x10.2mm_P0.65mm | U11 |
| 1 | GAL22V10 | DIP-24_W7.62mm_Socket | U12 |
| 1 | CXO_DIP8 | Oscillator_DIP-8 | X1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_bornier-2_P5.08mm | J1 |
| 1 | Conn_02x03_Odd_Even | PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | Conn_01x08 | PinSocket_1x08_P2.54mm_Vertical | J3 |
| 1 | Conn_01x06 | PinSocket_1x06_P2.54mm_Vertical | J4 |
| 1 | Conn_01x13 | PinSocket_1x13_P2.54mm_Vertical | J5 |
| 1 | Conn_01x18_Socket | PinSocket_1x18_P2.54mm_Vertical | J6 |
| 1 | MICROMOD-Standoff | MicroMod-Standoff | H1 |
| 2 | SW_Push | SW_PUSH_6mm | SW1, SW2 |
| 5 | LED | LED_2010_5025Metric_Pad1.52x2.65mm_HandSolder | D1, D2, D3, D4, D5 |
| 8 | 0.1µF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C5, C6, C7, C9, C10, C11 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1µF | CP_Radial_D4.0mm_P2.00mm | C3 |
| 2 | 10µF | CP_Radial_D4.0mm_P2.00mm | C4, C8 |
| 4 | 100K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R4, R5 |
| 12 | 10K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R6, R11, R14, R16, R31, R32, R33 +4 |
| 20 | 1K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R7, R8, R9, R10, R12, R15, R17, R18 +12 |
| 1 | 470R | R_2010_5025Metric_Pad1.40x2.65mm_HandSolder | R13 |
AS2650 board design files
The KiCad project lives in the AvalonSemiconductors/AS2650-bring-up repository on GitHub; these links point at the commit this page was built from.
- LayoutV1/HW/AS2650_board.kicad_pcb
- SchematicV1/HW/AS2650_board.kicad_sch
AS2650 board: common questions
How big is the AS2650 board?
The AS2650 board measures 96.9 × 67.9 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the AS2650 board?
76 components, from 26 distinct parts. The full bill of materials is listed on this page.
Where can I download the AS2650 board design files?
From the AvalonSemiconductors/AS2650-bring-up repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the AS2650 board design in my own project?
Yes, under the terms of its Apache-2.0 license, which AvalonSemiconductors chose for the repository.
