nrf52840-promicro
sasodoma
Reverse engineering the nRF52840 ProMicro (SuperMini) board
Components (38)
| Reference | Value | Description |
|---|---|---|
| Q1 | AO3401A | -4.0A Id, -30V Vds, P-Channel MOSFET, SOT-23 |
| U1 | nRF52840 | Multiprotocol BLE/ANT/2.4 GHz/802.15.4 Cortex-M4F SoC, AQFN-73 |
| U2 | ME6217 | 500mA low dropout linear regulator, shutdown pin, 6.5V max input voltage, 3.3V fixed positive output, SOT-23-5 |
| U3 | TP4054 | Constant-current/constant-voltage linear charger for single cell lithium-ion batteries with 2.9V Trickle Charge, 4.5V to 6.5V VDD, -40 to +85 degree Celsius, TSOT-23-5 |
| U4 | USBLC6-2P6 | Very low capacitance ESD protection diode, 2 data-line, SOT-666 |
| AE1 | Antenna | Antenna |
| C1,C2,C4,L1 | 10u | Inductor,Unpolarized capacitor |
| C3,C9,C19-C21 | 100n | Unpolarized capacitor |
| C5,C6 | 15p | Unpolarized capacitor |
| C7,C8 | 12p | Unpolarized capacitor |
| C10 | 100p | Unpolarized capacitor |
| C11 | 47n | Unpolarized capacitor |
| C12,C18 | 1u | Unpolarized capacitor |
| C13 | 820p | Unpolarized capacitor |
| C14,C22-C24 | 4u7 | Unpolarized capacitor |
| C15 | 0p8 | Unpolarized capacitor |
| C16 | 0p5 | Unpolarized capacitor |
| C17 | NC | Unpolarized capacitor |
| D1 | BAT60B | Diode |
| D2,D3 | LED | Light emitting diode |
| J1 | 918-418K2024S40000 | USB 2.0-only 16P Type-C Receptacle connector |
| J2,J3 | Conn_01x13_Pin | Generic connector, single row, 01x13, script generated |
| J4 | Conn_01x03_Pin | Generic connector, single row, 01x03, script generated |
| L2 | 15n | Inductor |
| L3 | 3u3 | Inductor |
| L4 | 4n7 | Inductor |
| R1,R2 | 5k1 | Resistor |
| R3 | 100k | Resistor |
| R4 | 10M | Resistor |
| R5 | 10k | Resistor |
| R6 | 2k | Resistor |
| R7 | 0R | Resistor |
| R8 | 1k | Resistor |
| R9-R11 | R | Resistor |
| R12,R13 | 27R | Resistor |
| TP1-TP4 | TestPoint | test point |
| Y1 | 32 MHz | Four pin crystal, GND on pins 2 and 4 |
| Y2 | 32.768kHz | Two pin crystal |