2 layers38.3 × 27.4 mm
V2.1 breakout
iank/julia_lcd
TFT LCD panel, capacitive touch controller, Xilinx Cyclone IV FPGA, SDR SDRAM
14 parts3
4 layers63.2 × 47.8 mm
Julia v2.1.1.0
iank/julia_lcd3TFT LCD panel, capacitive touch controller, Xilinx Cyclone IV FPGA, SDR SDRAM
- Size
- 63.2 × 47.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 104
- Nets
- 140
- Pads
- 633
- Tracks, vias
- 1,505, 301
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 1 Nov 2020
- Updated
- 6 Apr 2021
Overview
Julia v2.1.1.0 is an open-source printed circuit board by iank, from the iank/julia_lcd repository on GitHub. It is a 4-layer board of 63.2 × 47.8 mm with 104 parts on 140 nets, routed with 1,505 tracks and 301 vias.
It is built around the EFM8BB21F16I-C-QFN20, EP4CE6F17C8 and W25Q80DVSNIG, with the AS4C4M32S-7BCN and MBR0540 among its other parts. Its parts include 37 capacitors, 28 resistors, 8 ICs, 5 diodes and 4 connectors. It belongs with the fPGA and programmable logic and radio and wireless boards and the FPGA and CPLD and Silicon Labs (EFR32, EFM) boards of this library.
Main components
5
EFM8BB21F16I-C-QFN20
QFN-20(3x3)-40℃~+125℃ 12bit 16 16KB 2.25KB 2.2V~3.6V 50MHz 51 Family 8 Bit Built-in FLASH QFN-20(3x3) Microcontrollers (MCU/MPU/SOC) ROHSSilicon LabsMicrocontrollers (MCU/MPU/SOC)
EP4CE6F17C8
BGA256Cyclone IV E Family, FPGA, 6272 LEs, 179 I/Os, 256-Pin FBGA, Commercial Grade, Speed Grade 8ALTERAUncategorised
W25Q80DVSNIG
SOIC-8-40℃~+85℃ 100,000 cycles 104MHz 10uA 2.7V~3.6V 20 Years 200ms@(64KB) 800us 8Mbit Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8 NOR FLASH ROHSWinbond ElecNOR FLASHAS4C4M32S-7BCN
TFBGA-90(8x13)0℃~+70℃ 128Mbit 143MHz 3V~3.6V 3mA High-speed clock synchronization、Auto precharge、Auto refresh TFBGA-90(8x13) SDRAM ROHSAlliance MemorySDRAM
MBR0540
SOD-123-55℃~+150℃ 1 Independent 20uA@40V 40V 5.5A 500mA 510mV@500mA SOD-123 Schottky Diodes ROHSonsemiSchottky Diodes
README
README.mdjulia_lcd
TFT LCD panel, capacitive touch controller, Xilinx Cyclone IV FPGA, SDR SDRAM
Parts
104| Qty | Value | Footprint | References |
|---|---|---|---|
| 26 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C2, C3, C10, C11, C12, C13, C16, C18, C22, C24, C25, C27, C28, C29, C31, C32 +10 |
| 14 | TestPoint | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14 |
| 11 | 10k | Resistor_SMD:R_0402_1005Metric | R5, R6, R7, R8, R11, R12, R13, R14, R22, R27, R28 |
| 4 | 470 | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R4 |
| 4 | MountingHole_Pad | ik:MountingHole_2.2mm_M2_Pad | H1, H2, H3, H4 |
| 3 | 0 | Resistor_SMD:R_0402_1005Metric | R18, R23, R25 |
| 3 | 0-DNP | Resistor_SMD:R_0402_1005Metric | R20, R21, R24 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric | R26, R30, R31 |
| 3 | 27 | Resistor_SMD:R_0402_1005Metric | R15, R16, R29 |
| 3 | 4.7uF | Capacitor_Tantalum_SMD:CP_EIA-2012-15_AVX-P | C5, C17, C46 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C7, C8 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C41, C45 |
| 2 | 22uF | Capacitor_SMD:C_0603_1608Metric | C14, C15 |
| 2 | green | LED_SMD:LED_0603_1608Metric | D1, D3 |
| 2 | red | LED_SMD:LED_0603_1608Metric | D2, D4 |
| 1 | 10uH | ik:Murata_D53LC_A915AY-100M | L1 |
| 1 | 220nF | Capacitor_SMD:C_0402_1005Metric | C44 |
| 1 | 3.3 | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C43 |
| 1 | 50MHz | ik:Oscillator_SMD_EuroQuartz_XO91-4Pin_7.0x5.0mm | X1 |
| 1 | 600R/1A | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | AS4C4M32S-7BCN | ik:AS4C4M32S-7BCN | U8 |
| 1 | AZ1117-2.5 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | AZ1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | Barrel_Jack_Switch | ik:BarrelJack_GCT_DCJ200-05-A-K1-A_SMD_Horizontal | J1 |
| 1 | EFM8BB21F16I-C-QFN20 | ik:SiliconLabs_QFN-20-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U6 |
| 1 | EP4CE6F17 | Package_BGA:BGA-256_17.0x17.0mm_Layout16x16_P1.0mm_Ball0.5mm_Pad0.4mm_NSMD | U1 |
| 1 | Fuse_Small | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | JTAG/C2/UART Header | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J2 |
| 1 | MBR0540 | Diode_SMD:D_SOD-123 | D5 |
| 1 | Molex 0522710679 | ik:Molex_52271-0679_1x06-1MP_P1.00mm_Horizontal | J5 |
| 1 | Molex 0541044031 | ik:Molex_54104-4031_1x40-P0.5mm_Horizontal | J4 |
| 1 | NCP565ST12T3G | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | TPS61165_SOT23 | Package_TO_SOT_SMD:SOT-23-6 | U7 |
| 1 | W25Q80DVSNIG | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5 |
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Questions
How big is the Julia v2.1.1.0 PCB?
It measures 63.2 × 47.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Julia v2.1.1.0 use?
104 parts, built around the EFM8BB21F16I-C-QFN20, EP4CE6F17C8, W25Q80DVSNIG and AS4C4M32S-7BCN. 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 Julia v2.1.1.0 KiCad files?
From the iank/julia_lcd repository on GitHub, at the commit this page was made from: the board is cad/v2.1.1.0/julia_v2.1.1.0/julia_v2.1.1.0.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Julia v2.1.1.0 design in my own project?
Its repository states no licence, so its author keeps all rights: ask iank before reusing the design.