A replacement PCB for the Kyuu keyboard
Components (27)
| Reference | Value | Description |
|---|---|---|
| Q1-Q3 | 2N7002 | |
| U1 | BL24C256A-SFRC | TSSOP-8 non-volatile 256Kb (32K x 8) I2C EEPROM |
| U2 | STM32F411CEU6 | 32-bit ARM Cortex-M0+ 128kBytes flash microcontroller |
| U3 | SRV05-4-P-T7 | |
| U4 | MCP1700T-3302E/TT | |
| C1-C4,C10,C13 | 100n | |
| C5,C12 | 10u | Tantallum capacitor 10V or more |
| C6,C14,C15 | 1u | |
| C7 | 10n | |
| C8,C9 | 16p | MLCC 10V or more |
| C11 | 4.7u | MLCC 10V or more |
| D1-D68 | 1N4148W | |
| D69 | RB060M-60 | |
| F1 | mSMD110-16V | |
| FB1 | GZ2012D601TF | |
| J2 | TYPE-C-31-M-12 | |
| R1,R2,R4 | 1.5k | |
| R3,R8,R11,R12,R16 | 10k | |
| R5 | 0R | |
| R6 | 1k | |
| R7,R14,R15 | 100 | |
| R9 | 330k | |
| R10 | 1M | |
| R13,R19,R20 | 100k | |
| R17,R18 | 5.1k | |
| SW75 | K2-1187SQ-A4SW-06 | |
| Y1 | 7325-0800A2010-00 | 8MHz 3225-4P oscillator crystal |