2 layers50 × 73 mm
2 layers150 × 100 mm
NFC
NafisGit/PCB- Size
- 150 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 93
- Nets
- 109
- Pads
- 356
- Tracks, vias
- 1,010, 150
- Pours
- 158
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Jan 2025
- Updated
- 11 Jan 2025
Overview
NFC is an open-source printed circuit board by NafisGit, from the NafisGit/PCB repository on GitHub. It is a 2-layer board of 150 × 100 mm with 93 parts on 109 nets, routed with 1,010 tracks and 150 vias.
It is built around the MAX7219M, ST25R3911B-AQFT and AMS1117-3.3, with the TXB0104PW, 1N4148WT and BC817 among its other parts. Its parts include 19 capacitors, 6 ICs, 6 connectors, 3 switches and 3 crystals. It belongs with the radio and wireless boards and the STM32 boards of this library.
Main components
6
MAX7219M
SOP-24-300mil10MHz 150uA 3-Wire Serial Interface 30mA 320mA 4V~5.5V 8 Segment x 8 Digit Built-in display RAM、PWM dimming、BCD input latch function、Power-up display blanking、Lamp test function、Cascadable function SOP-24-300mil Digital Tube Drivers ROHSHGSEMIDigital Tube Drivers
ST25R3911B-AQFT
QFN-32-EP(5x5)13.56MHz 2.4V~5.5V Built-in antenna driver、Data verification、Low power wake-up FeliCa,ISO 18092,ISO 14443A,ISO 14443B,ISO 15693,NFC SPI QFN-32-EP(5x5) RFID ICs ROHSSTMicroelectronicsRFID ICs
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TXB0104PW
TSSOP-14-40℃~+85℃ 1 1.2V~3.6V 1.65V~5.5V 100Mbps 4 Auto Direction Detection Bidirectional CMOS CMOS Tri-State TSSOP-14 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
1N4148WT
SOD-523-55℃~+150℃ 1.25V@150mA 100V 150mA 150mW 1uA@75V 2A 4ns Independent SOD-523 Switching Diodes ROHShongjiachengSwitching Diodes
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
Parts
93| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | C | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | Cantenne1, Cantenne2, Cantenne3, Cantenne4, Cantenne5, Cantenne6, Cantenne7, Cantenne8, Cantenne10, CTRIM1, CTRIM2, CTRIM3, CTRIM4, CTRIM5, CTRIM6, CTRIM7 +4 |
| 15 | 2.2 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2CrystalGND1, CCrystalGND1, CDecouplage1, CDecouplage1, CDecouplage2, CDecouplage2, CDecouplage3, CDecouplage4, CDecouplage5, CDecouplage7, CDecouplage8, CSTAGD1, CSTVA1, CSTVD1, CSTVRF1 |
| 15 | R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | PuSwitch2, Rantenne1, Rantenne2, Rbp1, RBp2, Rd-1, Rd+1, Rd+2, RMax72, Rpa15, Rpb9, Rpc13, Rreg1, Rtransi1, Rusb1 |
| 5 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | Dpa15, Dpb9, Dpc13, Dreg1, Dusb1 |
| 4 | 10nf | Capacitor_SMD:CP_Elec_5x5.3 | CSTAGDPola1, CSTVDPola1, CSTVGAPola1, CSTVRFPola1 |
| 4 | 30 pf | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2crystaly1, C2crystaly2, Ccrystaly1, Ccrystaly2 |
| 4 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J3, J10, J13 |
| 2 | 5 µf | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | Creg1, Creg3 |
| 2 | Crystal | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm_HandSoldering | Y1, Y2 |
| 2 | L_Iron | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1, L2 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_SKQG_WithStem | SW1, SW2 |
| 1 | 1 µf | Capacitor_SMD:CP_Elec_5x5.3 | Cbp1 |
| 1 | 10 nf | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | Creg2 |
| 1 | 1N4148WT | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | Diode1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | Antenna_Loop | tp_pcb:antenneNFClock | AE1 |
| 1 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | C | Capacitor_SMD:CP_Elec_5x5.3 | Cbp2 |
| 1 | CC56-12CGKWA | Library_AP_4201A:7 segments | U6 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | Conn_01x03_Pin | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | relaipin1 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_EuroQuartz_MJ-4Pin_5.0x3.2mm_HandSoldering | Y4 |
| 1 | FINDER-40.11 | Relay_THT:Relay_SPDT_Finder_36.11 | K1 |
| 1 | Fuse | Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F1 |
| 1 | MAX7219 | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U2 |
| 1 | ST25R3911B-AQF | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm_ThermalVias | U3 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | TXB0104PW | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U7 |
| 1 | USB_B | Connector_USB:USB_Micro-B_Molex_47346-0001 | J1 |
Questions
How big is the NFC PCB?
It measures 150 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the NFC use?
93 parts, built around the MAX7219M, ST25R3911B-AQFT, AMS1117-3.3 and TXB0104PW. 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.
Where can I download the NFC KiCad files?
From the NafisGit/PCB repository on GitHub, at the commit this page was made from: the board is NFC.kicad_pcb and its schematic NFC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the NFC design in my own project?
Its repository states no licence, so its author keeps all rights: ask NafisGit before reusing the design.
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