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project802
Technical information about the Kunlun keyboard
| Reference | Value | Description |
|---|---|---|
| U1 | STM32F072CBT6 | STMicroelectronics Arm Cortex-M0 MCU, 128KB flash, 16KB RAM, 48 MHz, 2.0-3.6V, 37 GPIO, LQFP48 |
| U2 | AP2112K-3.3 | 600mA low dropout linear regulator, with enable pin, 3.8V-6V input voltage range, 3.3V fixed positive output, SOT-23-5 |
| U3 | USBLC6-2SC6 | Very low capacitance ESD protection diode, 2 data-line, SOT-23-6 |
| C1,C2,C4,C8 | 100nF | Unpolarized capacitor |
| C3,C5 | 4.7uF | Unpolarized capacitor |
| C6 | 10nF | Unpolarized capacitor |
| C7,C10-C12 | 1uF | Unpolarized capacitor |
| C9 | 1nF | Unpolarized capacitor |
| D1 | SMAJ5.0CA | 400W bidirectional Transient Voltage Suppressor, 5.0Vr, SMA(DO-214AC) |
| F1 | 500mA | Fuse |
| J1 | 0532610671 | Generic connectable mounting pin connector, single row, 01x06, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J2 | 10129383-908001ALF | Generic connector, double row, 02x04, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J3 | USB4105-GF-A | USB 2.0-only 16P Type-C Receptacle connector |
| J4-J7 | 5002 | Generic connector, single row, 01x01, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J8,J9 | 5001 | Generic connector, single row, 01x01, script generated (kicad-library-utils/schlib/autogen/connector/) |
| LS1 | Speaker | Speaker |
| R1,R2 | 22 | Resistor, US symbol |
| R3 | 10k | Resistor, US symbol |
| R4,R5 | 5.1k | Resistor, US symbol |
| R6 | 1M | Resistor, US symbol |
| R7 | 100 | Resistor, US symbol |
| SW1 | KMR231NG ULC LFS | Push button switch, generic, two pins |