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Std edition STM32 Cheap-Link
No Profile
License: MIT
Description
Features:
- SWD-only, 3.3V-only targets
- PCB layout compatible with JLink OB
- both 3.3V and 5V power supply to target
- 5V USB is protected from target's 5V
- Compact form-factor
- Pain-in-the-* 0402 capacitors
In case of failure (or low voltage on 5V pin) at first check following:
- Fuse
- AO3401A FET
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 20pF | C1,C2 | 0402 | 2 |
| 2 | 100n | C3,C5,C6,C8,C9 | 0402-CAP | 5 |
| 3 | 10uF | C4 | 0603-CAP | 1 |
| 4 | 22uF | C7 | 0603-CAP | 1 |
| 5 | 1u | C10 | 0603-CAP | 1 |
| 6 | ESD5305F-6/TR | D1 | SOT23-6 | 1 |
| 7 | XH2.54-7P | DEBUG_HEADER | XH2.54-7P | 1 |
| 8 | Led | LED | LED-0603 | 1 |
| 9 | DMMT5401-7-F | Q1 | SOT-23-6 | 1 |
| 10 | AO3401A | Q3 | SOT-23(SOT-23-3) | 1 |
| 11 | 22 | R1,R2 | 0603 | 2 |
| 12 | 1.5k | R3 | 0603 | 1 |
| 13 | 100 | R4,R8,R9,R10,R11 | 0603 | 5 |
| 14 | 10k | R5 | 0603 | 1 |
| 15 | 47k | R6,R7 | 0603 | 2 |
| 16 | 1k | R13 | 0603 | 1 |
| 17 | 165Ω | R16,R17,R18 | 0603 | 3 |
| 18 | JTAG Enable | SJ1 | SOLDER JUMPER 2_PADS | 1 |
| 19 | SE8117T33HF | U2 | SOT-223-3LEAD_TABPIN2 | 1 |
| 20 | 0438002.WR | U3 | 0603 | 1 |
| 21 | U-F-M5DD-Y-L1 | USB1 | MICRO-USB-A8 | 1 |
| 22 | 8MHz | X1 | OSC-49S-1 | 1 |
| 23 | STM32F103C8T6 | U1 | LQFP-48_7X7X05P | 1 |
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