4 layers24 × 24 mm
4 layers24 × 24 mm
TFRAS TOP
geus-clan/TFRAS- Size
- 24 × 24 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 67
- Pads
- 176
- Tracks, vias
- 474, 59
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 30 Aug 2021
- Updated
- 9 Jul 2024
Overview
TFRAS TOP is an open-source printed circuit board by geus-clan, from the geus-clan/TFRAS repository on GitHub. It is a 4-layer board of 24 × 24 mm with 28 parts on 67 nets, routed with 474 tracks and 59 vias.
It is built around the ATMEGA4809-AF, MAX3471EUA+ and 74HCT4051BQ, with the AMS1117-3.3 among its other parts. Its parts include 8 capacitors, 6 resistors, 5 ICs, 3 connectors and 1 inductor. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATMEGA4809-AF
TQFP-48(7x7)-40℃~+125℃ 1.8V~5.5V 10bit 20MHz 256Byte 41 48KB 6KB 8 Bit AVR Built-in FLASH TQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MAX3471EUA+
MSOP-8-40℃~+85℃ 1 1 1.6uA 2.5V~5.5V 64Kbps Half-Duplex Transceiver MSOP-8 RS-485 / RS-422 ICs ROHSMaxim Integrated (Analog Devices)RS-485 / RS-422 ICs
74HCT4051BQ
DHVQFN-16-EP(2.5x3.5)-40℃~+125℃ 1 29ns 31ns 4.5V~5.5V 5ns 80Ω 8:1 Level shifting DHVQFN-16-EP(2.5x3.5) Analog Switches, Multiplexers ROHSNexperiaAnalog Switches, Multiplexers
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
README
README.mdTFRAS
PCB prototype for sensor board used with resistive automatic ablation sensor.
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C4, C5, C6, C7, C8 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R7 |
| 2 | 13 | Resistor_SMD:R_1206_3216Metric | R3, R4 |
| 2 | 74HCT4051BQ | Rare flowers:SOT763-1(DHVQFN16) | U4, U5 |
| 2 | Conn_01x02_Female | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | JPWR1, RS4851 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 100uF | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 10uF | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | 10uH | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | ATmega4809-A | Package_QFP:TQFP-48_7x7mm_P0.5mm | U1 |
| 1 | BOTTOM | Connector_FFC-FPC:Molex_200528-0170_1x17-1MP_P1.00mm_Horizontal | J1 |
| 1 | MAX3471 | Package_SO:MSOP-8_3x3mm_P0.65mm | U3 |
| 1 | RTERM | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8 |
| 1 | TOP | Connector_FFC-FPC:Molex_200528-0170_1x17-1MP_P1.00mm_Horizontal | J4 |
| 1 | TestPoint_Small | TestPoint:TestPoint_Pad_1.0x1.0mm | RST1 |
| 1 | Thermistor_NTC_100K | Resistor_SMD:R_0603_1608Metric | TH1 |
| 1 | UPDI-POGO | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J3 |
| 1 | logo | Rare flowers:TFRAS | H1 |
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Questions
How big is the TFRAS TOP PCB?
It measures 24 × 24 mm and has 4 copper layers, 1.6 mm thick.
What parts does the TFRAS TOP use?
28 parts, built around the ATMEGA4809-AF, MAX3471EUA+, 74HCT4051BQ and AMS1117-3.3. 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 TFRAS TOP KiCad files?
From the geus-clan/TFRAS repository on GitHub, at the commit this page was made from: the board is Schematics and PCBs/TFRAS_TOP/TFRAS_TOP.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the TFRAS TOP design in my own project?
Its repository states no licence, so its author keeps all rights: ask geus-clan before reusing the design.