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eddyem
Code samples and ready projects based on bare-metal STM32
| Reference | Value | Description |
|---|---|---|
| Q1 | AO3401 | P-MOSFET transistor, gate/source/drain |
| Q2,Q3,Q5-Q7 | B0505S-1W | |
| Q4 | B0505S-2W | isolated DC-DC |
| U1 | ISO1050DUB | |
| U2 | MAX3232 | 3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceivers Using Four 0.1μF External Capacitors |
| U3 | ISO3086 | |
| U4 | LM1117MP-3.3 | 800mA Low-Dropout Linear Regulator, 3.3V fixed output, SOT-223 |
| U5 | USBLC6-2SC6 | Very low capacitance ESD protection diode, 2 data-line, SOT-23-6 |
| U6 | STM32F303RBT6 | STMicroelectronics Arm Cortex-M4 MCU, 128KB flash, 40KB RAM, 72 MHz, 2.0-3.6V, 52 GPIO, LQFP64 |
| U7-U9 | ISO3088DW | 20 Mbps, Isolated 5-V Half-Duplex RS-485 transceiver, SOIC-16 |
| U10-U13 | H11L1 | Schmitt Trigger Output Optocoupler, High Speed, DIP-6, 1.6mA turn on threshold |
| C1,C6,C8 | 0.47 | Unpolarized capacitor |
| C2,C9,C14,C15 | 1u | |
| C3-C5,C7,C10,C11,C13,C16-C18,C21-C32 | 0.1 | Unpolarized capacitor |
| C12 | 22u | Unpolarized capacitor |
| C19,C20 | 12 | Unpolarized capacitor |
| D1 | PESD1CAN | |
| D2-D5 | SMAJ15CA | 400W bidirectional Transient Voltage Suppressor, 15.0Vr, SMA(DO-214AC) |
| D6,D8,D10-D12 | SM712_SOT23 | 7V/12V, 600W Asymmetrical TVS Diode Array, SOT-23 |
| D7,D9 | 1N5817 | Schottky diode |
| F1-F6 | 0.5A | Fuse |
| J1,J2,J4,J5 | HOLE | Generic connector, single row, 01x01, script generated |
| J6-J8,J12-J14 | Term_3 | Generic screw terminal, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J9 | Screw_Terminal_01x02 | Generic screw terminal, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J10 | SSI/422 | 9-pin D-SUB connector, socket (female), Mounting Hole |
| J11 | USB_B | |
| JP1,JP2,JP4-JP6 | Jumper_3_Open | Jumper, 3-pole, both open |
| JP3 | Jumper_2_Open | Jumper, 2-pole, open |
| R1 | 120 | |
| R2-R9 | 510 | Resistor |
| R10,R14,R16 | 10k | Resistor |
| R11,R13,R15 | 22 | Resistor |
| R12 | 1k5 | Resistor |
| R17 | 330 | Resistor |
| R18 | 1k | |
| SW1 | SW_DIP_x01 | |
| SW2-SW4 | SW_Push | |
| Y1 | 8MHz |