2 layers26 × 30 mm
Expansion Card
FrameworkComputer/ExpansionCards
Reference designs and documentation to create Expansion Cards for the Framework Laptop
11 parts1.1kCC-BY-4.0
2 layers26 × 30 mm
Microcontroller
FrameworkComputer/ExpansionCards1.1kReference designs and documentation to create Expansion Cards for the Framework Laptop
- Size
- 26 × 30 mm
- Copper layers
- 2
- Thickness
- 0.8 mm
- Parts
- 34
- Nets
- 38
- Pads
- 165
- Tracks, vias
- 539, 110
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 17 May 2021
- Updated
- 9 May 2024
Overview
Microcontroller is an open-source printed circuit board by FrameworkComputer, from the FrameworkComputer/ExpansionCards repository on GitHub, published under the CC-BY-4.0 licence. It is a 2-layer board of 26 × 30 mm with 34 parts on 38 nets, routed with 539 tracks and 110 vias.
It is built around the ATSAMD21E18A-MF, GD25Q16CTIG and AP2112K-3.3, with the BAT20JFILM and WS2812B among its other parts. Its parts include 8 capacitors, 6 resistors, 5 connectors, 4 ICs and 2 diodes. It belongs with the computers and single-board computers boards and the SAM D and SAM boards of this library.
Main components
5
ATSAMD21E18A-MF
VFQFN-32-EP(5x5)-40℃~+125℃ 1.62V~3.6V 256KB 26 32 Bit 32KB 48MHz ARM Cortex-M0+ Built-in FLASH VFQFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
GD25Q16CTIG
SOP-8-150mil100,000 cycles 120MHz 16Mbit 2.7V~3.6V 20 Years 250ms@(64KB) 5uA 600us SPI SOP-8-150mil NOR FLASH ROHSGigaDeviceNOR FLASH
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
BAT20JFILM
SOD-3231 Independent 12uA@15V 1A 23V 5A 620mV@1A SOD-323 Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdExpansion Cards
Reference designs and documentation to create Expansion Cards for the Framework Laptop. The Framework Laptop's Expansion Card system lets you choose exactly the ports you want and which side you want them on. We've built USB-C, USB-A, HDMI, DP, MicroSD, and Storage Expansion Cards, but there is an entire world of other interesting ways to extend the capabilities of a notebook. We're releasing CAD to make it easy for you to develop your own Expansion Cards.
Check out the Expansion Card section of the Framework Community for card ideas, support, or just to show off what you're working on: https://community.frame.work/c/expansion-cards/developer-program/90
Note that you should build and test development versions before committing a design based on this CAD to mass production.
License
Expansion Cards © 2021 by Framework Computer Inc is licensed under CC BY 4.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 5.1k | Resistor_SMD:R_0603_1608Metric | R1, R3, R4, R5, R6 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1, TP2, TP3, TP4 |
| 3 | 100nF | Capacitor_SMD:C_0603_1608Metric | C2, C3, C4 |
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C7, C8 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C5, C6 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | ATSAMD21E18A-M | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm | U1 |
| 1 | BAT20JFILM | Diode_SMD:D_SOD-323 | D1 |
| 1 | Conn_01x10 | Microcontroller:PinSocket_8FM-78-0010-02-146_1x10_P2.54mm_Horizontal_SMD | J2 |
| 1 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J4 |
| 1 | Conn_ARM_JTAG_SWD_10 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J3 |
| 1 | GD25Q16CT | Package_SO:SOP-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | JST SH 1x4 | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1 |
| 1 | LOGO | Microcontroller:Framework-Logo_1.5mm_SilkScreen | G*** |
| 1 | RESET | Button_Switch_SMD:SW_SPST_B3U-3100P | SW1 |
| 1 | TLV70036_SOT23-5 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | USB_C_Plug_USB2.0 | Microcontroller:USB_C_Plug_Molex_105444 | P1 |
| 1 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D2 |
The 33 most common of 34 parts.
Questions
How big is the Microcontroller PCB?
It measures 26 × 30 mm and has 2 copper layers, 0.8 mm thick.
What parts does the Microcontroller use?
34 parts, built around the ATSAMD21E18A-MF, GD25Q16CTIG, AP2112K-3.3 and BAT20JFILM. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Microcontroller KiCad files?
From the FrameworkComputer/ExpansionCards repository on GitHub, at the commit this page was made from: the board is Electrical/Microcontroller/Microcontroller.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Microcontroller design in my own project?
Its repository publishes it under the CC-BY-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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