4 layers91.4 × 40.6 mm
Mta1 usb dev
tillitis/tk1-pcba
PCB files for the open and flexible security key - TKey
92 parts4CERN-OHL-S-2.0
4 layers28.6 × 13.9 mm
PCB files for the open and flexible security key - TKey
- Size
- 28.6 × 13.9 mm
- Copper layers
- 4
- Thickness
- 0.8 mm
- Parts
- 70
- Nets
- 77
- Pads
- 237
- Tracks, vias
- 507, 90
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 8 Jul 2024
- Updated
- 20 Sep 2024
Overview
Tk1 is an open-source printed circuit board by tillitis, from the tillitis/tk1-pcba repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 4-layer board of 28.6 × 13.9 mm with 70 parts on 77 nets, routed with 507 tracks and 90 vias.
It is built around the CH552E, ICE40UP5K-SG48ITR50 and PT2043AT6, with the W25Q80DVUXIE, MIC5258-1.2YM5 and USBLC6-2SC6 among its other parts. Its parts include 20 capacitors, 15 resistors, 8 ICs, 2 diodes and 1 connector. It belongs with the FPGA and CPLD and 8051 (CH55x, STC, AT89) boards of this library.
Main components
10
CH552E
MSOP-1016KB 24MHz 3.3V~5V 51 Family 8bit FLASH MSOP-10 Microcontrollers (MCU/MPU/SOC) ROHSWCH (Nanjing Qinheng Microelectronics)Microcontrollers (MCU/MPU/SOC)
ICE40UP5K-SG48ITR50
QFN-48QFN-48 Programmable Logic Device (CPLDs/FPGAs) ROHSLatticeProgrammable Logic Device (CPLDs/FPGAs)
PT2043AT6
SOT-23-6-40℃~+85℃ 1 2.4V~5.5V 2uA 2uA No SOT-23-6 Touch Sensors ROHSPinTengTouch Sensors
W25Q80DVUXIE
USON-8-EP(2x3)-40℃~+85℃ 100,000 cycles 104MHz 10uA 120ms@(32KB) 2.7V~3.6V 20 Years 800us 8Mbit SPI USON-8-EP(2x3) NOR FLASH ROHSWinbond ElecNOR FLASH
MIC5258-1.2YM5
SOT-23-5-40℃~+125℃ 1 1.2V 150mA 150uA 6V Fixed Over Current Protection、Over Temperature Protection、Low ESR、ESD Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
NCD0402B1
0402-30℃~+85℃ 130° 2.6V~3.6V 20mA 45mcd 463nm~475nm 465nm 72mW Blue Discrete Diode 0402 LED Indication - Discrete ROHSFoshan NationStar OptoelectronicsLED Indication - Discrete
BLM18KG300TN1D
06031 10mΩ 30Ω@100MHz 5A ±25% 0603 Ferrite Beads ROHSMurataFerrite Beads
FC-B1010RGBT-HG
SMD-4P,1x1mm-30℃~+85℃ 0.85mm 1.6V~2.4V 120° 12mcd~35mcd 15mcd~55mcd 1mm 1mm 1mm方形灯头 2.2V~3.2V 2.3V~3.2V 24mW 2mA 2mA 32mW 32mW 3mcd~10mcd 460nm~480nm 520nm~545nm 5mA 610nm~630nm Common Anode Top-mount SMD-4P,1x1mm RGB LEDs ROHSFoshan NationStar OptoelectronicsRGB LEDs
U261-241N-4BS60
插件-40℃~+85℃ 1 10,000 cycles 12.2mm 20V 24P 5A Clamping plate Male Type-C SMD USB Connectors ROHSXKB ConnectionPre-Ordered Connectors
README
prototypes/mta1-usb-dev/README.mdmta1-usb-dev
This is the original TKey design, intended as a development platform. It is a larger PCB, that connects to a PC via a USB C cable.
Main features:
-
2 ICE40 FPGAs.
-
The first ICE40 (Interface FPGA) is connected to a USB C plug, and is loaded with a gateware that contains a soft USB device. This gateware acts as an USB-to-GPIO interface to the second ICE40.
-
The second ICE40 (application FPGA) is loaded with a RISC-V soft core containing the security firmware. User applications are run on this gateware.
-
The second ICE40 also has an input button for user presenence detection.
-
An FTDI module is included for programming both the Application and Interface FPGAs.
-
Both ICE40s can be configured to boot from included SPI flash memories, NVCM, or be live programmed from the FTDI module.
-
All GPIO lines between the two FPGAs, as well as all programming signals, are exposed on 0.1" headers for probing.
Parts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 0.10uF | mta1:CAPC1005X06L | C7, C13, C16, C17, C18, C19, C20, C21, C22, C23, C26 |
| 9 | 10k | mta1:ERJ2G(0402)_L | R1, R2, R19, R20, R22, R23, R24, R25, R26 |
| 7 | 10uF | mta1:CAPC1608X09L | C1, C2, C3, C4, C5, C6, C25 |
| 4 | 1k | mta1:ERJ2G(0402)_L | R3, R16, R17, R18 |
| 2 | Fiducial | Fiducial:Fiducial_0.75mm_Mask1.5mm | FID1, FID2 |
| 1 | 0402 indicator LED, blue | LED_SMD:LED_0402_1005Metric | D1 |
| 1 | 1V2 | mta1:TestPoint_Pad_D1.0mm | TP4 |
| 1 | 1pF | mta1:CAPC1005X06L | C27 |
| 1 | 1uF | Capacitor_SMD:C_1206_3216Metric | C8 |
| 1 | 2V5 | mta1:TestPoint_Pad_D1.0mm | TP3 |
| 1 | 2k | mta1:ERJ2G(0402)_L | R30 |
| 1 | 3V3 | mta1:TestPoint_Pad_D1.0mm | TP2 |
| 1 | 5.1k | mta1:ERJ2G(0402)_L | R29 |
| 1 | 5V | mta1:TestPoint_Pad_D1.0mm | TP1 |
| 1 | APP_CDONE | mta1:TestPoint_Pad_D1.0mm | TP17 |
| 1 | APP_CRESET | mta1:TestPoint_Pad_D1.0mm | TP16 |
| 1 | APP_GND | mta1:TestPoint_Pad_D1.0mm | TP5 |
| 1 | APP_GPIO1 | mta1:TestPoint_Pad_D1.0mm | TP18 |
| 1 | APP_GPIO2 | mta1:TestPoint_Pad_D1.0mm | TP19 |
| 1 | APP_GPIO3 | mta1:TestPoint_Pad_D1.0mm | TP20 |
| 1 | APP_GPIO4 | mta1:TestPoint_Pad_D1.0mm | TP21 |
| 1 | APP_ICE_MISO | mta1:TestPoint_Pad_D1.0mm | TP15 |
| 1 | APP_ICE_MOSI | mta1:TestPoint_Pad_D1.0mm | TP14 |
| 1 | APP_ICE_SCK | mta1:TestPoint_Pad_D1.0mm | TP12 |
| 1 | APP_ICE_SS | mta1:TestPoint_Pad_D1.0mm | TP13 |
| 1 | BLM18KG300TN1D | mta1:Ferritbead_0603_1608Metric | FB3 |
| 1 | CH552E | Package_SO:MSOP-10_3x3mm_P0.5mm | U3 |
| 1 | GND | mta1:TestPoint_Pad_D1.0mm | TP28 |
| 1 | ICE40UP5K-SG48ITR | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U6 |
| 1 | INT_CTS | mta1:TestPoint_Pad_D1.0mm | TP9 |
| 1 | INT_RTS | mta1:TestPoint_Pad_D1.0mm | TP8 |
| 1 | INT_RX | mta1:TestPoint_Pad_D1.0mm | TP7 |
| 1 | INT_TX | mta1:TestPoint_Pad_D1.0mm | TP6 |
| 1 | LED_ARGB | mta1:0402rgb-1010 | D3 |
| 1 | MCP1824T-2502EOT | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | MIC5258-1.2YM5 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | NCP752BSN33T1G | mta1:NCP752BSN33T1G | U9 |
| 1 | PT2043AT6 | Package_TO_SOT_SMD:SOT-23-6 | U10 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U5 |
| 1 | USB_C_Plug | mta1:U261-241N-4BS60 | P1 |
| 1 | W25Q80DVUXIE | mta1:W25Q80DVUXIE | U8 |
The 69 most common of 70 parts.
Questions
How big is the Tk1 PCB?
It measures 28.6 × 13.9 mm and has 4 copper layers, 0.8 mm thick.
What parts does the Tk1 use?
70 parts, built around the CH552E, ICE40UP5K-SG48ITR50, PT2043AT6 and W25Q80DVUXIE. 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 Tk1 KiCad files?
From the tillitis/tk1-pcba repository on GitHub, at the commit this page was made from: the board is hw/tk1.kicad_pcb and its schematic hw/application_fpga.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tk1 design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 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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