FBanna/Clock_pcbMy Clock CAD files
Clock is an open-source printed circuit board by FBanna, from the FBanna/Clock_pcb repository on GitHub. It is a 2-layer board of 51.4 × 39.9 mm with 136 parts on 74 nets, routed with 1,042 tracks and 104 vias.
It is built around the STM32F072CBT6, AP2112K-3.3 and MCP73871-2CCI/ML, with the USBLC6-2SC6 among its other parts. Its parts include 75 diodes, 25 resistors, 17 capacitors, 4 ICs and 4 connectors. It belongs with the lEDs and displays boards and the STM32 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 72 | LED_Small | LED_SMD:LED_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24 +56 |
| 10 | 50R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3, R16, R17, R18, R19, R20, R21, R22, R23, R24 |
| 6 | 100nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2, C3, C4, C6, C13, C14 |
| 4 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C5, C16, C17 |
| 3 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7, C18, C19 |
| 3 | SW_SPST | FB_clock_lib:SW_push | SW1, SW2, SW5 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4, R9 |
| 2 | 10kR | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R7 |
| 2 | 10pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C11, C12 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2 |
| 2 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J4 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 1 | 1.1k / 500R for 900/1000 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R5 |
| 1 | 100R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R12 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C8 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C15 |
| 1 | 110k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R11 |
| 1 | 180R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R13 |
| 1 | 1kR | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R14 |
| 1 | 2kR | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R15 |
| 1 | 300R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R31 |
| 1 | 30k / 20k for 900/1000 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R8 |
| 1 | 330k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R10 |
| 1 | 8MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | Battery | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J5 |
| 1 | Buzzer | FB_clock_lib:Buzzer | BZ1 |
| 1 | D_Schottky | Diode_SMD:D_SOD-123F | D76 |
| 1 | D_Small | Diode_SMD:D_SOD-123F | D1 |
| 1 | LED | LED_SMD:LED_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D74 |
| 1 | MCP73871-2CC | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U4 |
| 1 | NMOS-SI2302 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | NPN | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q2 |
| 1 | Polyfuse | Fuse:Fuse_0805_2012Metric_Pad1.15x1.40mm_HandSolder | F1 |
| 1 | STM32F072CBT6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_SPDT | FB_clock_lib:SW_slide | SW4 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_Palconn_UTC16-G | J1 |
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It measures 51.4 × 39.9 mm and has 2 copper layers, 1.6 mm thick.
136 parts, built around the STM32F072CBT6, AP2112K-3.3, MCP73871-2CCI/ML and USBLC6-2SC6. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the FBanna/Clock_pcb repository on GitHub, at the commit this page was made from: the board is clock.kicad_pcb and its schematic LED.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask FBanna before reusing the design.