STM32 Cheap-Link

1 year ago 570
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

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

Documents

Schematics

PCB

BOM

ID Name Designator Footprint Quantity BOM_Manufacturer Part
1 100n C9,C8,C3,C5,C6 0402-CAP 5 GRM155R61A104KA01D
2 20pF C1,C2 0402 2 0402CG200J500NT
3 XH2.54-7P DEBUG_HEADER XH2.54-7P 1 ?
4 U-F-M5DD-Y-L1 USB1 MICRO-USB-A8 1 U-F-M5DD-Y-L1
5 Led LED LED-0603 1 BL-HB336G-TRB
6 1k R13 0603 1 RTT031001FTP
7 22 R1,R2 0603 2 RS-03K220JT
8 1.5k R3 0603 1 0603WAF1501T5E
9 JTAG Enable SJ1 SOLDER JUMPER 2_PADS 1 ?
10 100 R4,R8,R9,R10,R11 0603 5 ?
11 10k R5 0603 1 RTT031002FTP
12 DMMT5401-7-F Q1 SOT-23-6 1 DMMT5401-7-F
13 AO3401A Q3 SOT-23(SOT-23-3) 1 AO3401A
14 47k R6,R7 0603 2 ?
15 1u C10 0603-CAP 1 CL10A105KO8NNNC
16 165Ω R16,R17,R18 0603 3 0603WAF1650T5E
17 ESD5305F-6/TR D1 SOT23-6 1 ESD5305F-6/TR
18 SE8117T33HF U2 SOT-223-3LEAD_TABPIN2 1 SE8117T33HF
19 0438002.WR U3 0603 1 0438002.WR
20 22uF C7 0603-CAP 1 CC0603MRX5R5BB226
21 10uF C4 0603-CAP 1 CL10A106MQ8NNNC
22 8MHz X1 OSC-49S-1 1 X49SD8MSD2SC
23 DMMT5401-7-F Q2 SOT-23-6 1 DMMT5401-7-F
24 STM32F103C8T6 U1 LQFP-48_7X7X05P 1 STM32F103C8T6

Attachments

None

Members

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