Maker project
BB Q20 Keyboard with trackpad, USB/I2C/PMOD
BOM000988 · v1.0
What the project is · as the catalogue files it; the circuit functions below are BOM rule hits
Filed under “人机接口HMI” in the ezPLM catalogue.
Circuit functions included · BOM rule hits · not reviewed
- Low-dropout regulator (LDO)
- U2 AP2112K-3.3 · by part number
- Arm Cortex-M MCU
- U1 RP2040 · by part number
- Flash (SPI / QSPI / parallel)
- U3 GD25Q16xS · by part number
Helper circuits
- Crystal / oscillator
- Y1 XYDBPCNANF-12MHZ · by footprint
- USB connector (Type-C / Micro / A)
- J3 USB_C_Receptacle_USB2.0 · by part number
- Qwiic / STEMMA QT / Grove
- J1 Conn_Stemma_QT · by footprint
- mikroBUS / Pmod / UEXT
- J2 PMOD · by part number
Online view
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25 rows · 59 parts0 of 25 rows placedHover or click a row to mark its parts in the view; click a part in the view to find its row.
Looks up part numbers and makers at ezPLM, DigiKey and Mouser. What it finds are suggestions: check one before you use it.
| Designators | Value | Part | Qty | Placed | |
|---|---|---|---|---|---|
| U1 | RP2040 | No part number | 1 | ||
| U2 | AP2112K-3.3 | No part number | 1 | ||
| U3 | GD25Q16xS | No part number | 1 | ||
| U5 | ME6212C18M5G | No part number | 1 | ||
| U6 | ME6212C28M5G | No part number | 1 | ||
| Q1, Q2, Q3, Q4, Q5, Q6 | BSS138 | No part number | 6 | ||
| C12, C13 | 12pFC_0603_1608Metric | 12pF | 2 | ||
| G*** | LOGOSolderParty-New-Logo_12.5x10.6mm_SilkScreen | LOGO | 1 | ||
| D1 | D_Schottky_SmallD_SOD-323 | D_Schottky_Small | 1 | ||
| R19, R20 | 4.7KR_0603_1608Metric | 4.7K | 2 | ||
| J1 | Conn_Stemma_QTJST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | Conn_Stemma_QT | 1 | ||
| J3 | USB_C_Receptacle_USB2.0USB_C_Receptacle_HRO_TYPE-C-31-M-12 | 1 | |||
| Y1 | XYDBPCNANF-12MHZCrystal_SMD_2520-4Pin_2.5x2.0mm | 1 | |||
| H1, H2 | MountingHoleMountingHole_2.7mm_M2.5 | MountingHole | 2 | ||
| G*** | LOGOSolderParty-New-Logo_7.5x6.4mm_SilkScreen | LOGO | 1 | ||
| J2 | PMODPMODPinHeader_1x06_P2.54mm_Horizontal | PMOD | 1 | ||
| TP6 | TP_3V3TestPoint_Pad_D1.5mm | TP_3V3 | 1 | ||
| C1, C2, C3, C4, C5, C7, C8, C14, C15 | 0.1uFC_0603_1608Metric | 0.1uF | 9 | ||
| C10, C11 | 10uFC_0603_1608Metric | 10uF | 2 | ||
| R3, R22 | 1KR_0603_1608Metric | 1K | 2 | ||
| R5, R6 | 27RR_0603_1608Metric | 27R | 2 | ||
| C6, C9 | 1uFC_0603_1608Metric | 1uF | 2 | ||
| R1, R2 | 5.1KR_0603_1608Metric | 5.1K | 2 | ||
| U4 | BBQ20KBDBM20B(0.8)-40DS-0.4V | 1 | |||
| R4, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R21 | 10KR_0603_1608Metric | 10K | 14 |