2 layers167.6 × 167.6 mm
2 layers100 × 100 mm
DevelopmentBoard
kernlpanic/devboardpcb design for a small devboard with ethernet and rs232
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 92
- Pads
- 289
- Tracks, vias
- 956, 73
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Feb 2022
- Updated
- 1 Mar 2022
Overview
DevelopmentBoard is an open-source printed circuit board by kernlpanic, from the kernlpanic/devboard repository on GitHub. It is a 2-layer board of 100 × 100 mm with 59 parts on 92 nets, routed with 956 tracks and 73 vias.
It is built around the ATMEGA32-16PU, MAX232N and LM2576T-5.0, with the IS62LV256AL-45ULI, SN74HC373NE4 and SN74HCT08N among its other parts. Its parts include 30 capacitors, 9 resistors, 8 ICs, 4 connectors and 2 diodes. It belongs with the microcontroller boards and interfaces and adapters boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
6
ATMEGA32-16PU
PDIP-40-40℃~+85℃ 10bit 16MHz 1KB 2KB 32 32KB 4.5V~5.5V 8 Bit AVR Built-in FLASH PDIP-40 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MAX232N
PDIP-160℃~+70℃ 120Kbps 2 2 4.5V~5.5V Transceiver PDIP-16 RS232 ICs ROHSTexas InstrumentsRS232 ICs
LM2576T-5.0
TO-220-5-40℃~+125℃@(TJ) 1 3A 40V 52kHz 5V 5mA Buck Buck Built-in Fixed TO-220-5 DC-DC Converters ROHSHGSEMIDC-DC Converters
IS62LV256AL-45ULI
SOP-28-40℃~+85℃ 2.97V~3.63V 20uA 256Kbit 45ns Auto power-down function SOP-28 SRAM ROHSISSISRAM
SN74HC373NE4
PDIP-20-40℃~+85℃ 10ns 13ns 2V~6V 7.8mA 7.8mA 74HC 8 8uA 9ns D Latch Tri-State PDIP-20 Latches ROHSTexas InstrumentsLatches
SN74HCT08N
PDIP-14-40℃~+85℃ 2 22ns@5.5V,50pF 2V 2uA 3.84V 330mV 4 4.5V~5.5V 4mA 4mA 74HCT Series 800mV AND Gate PDIP-14 Logic Gates ROHSTexas InstrumentsLogic Gates
README
README.mdDevboard
Description
Just a small devboard with ethernet and rs232 interface. Almost(tm) fully THD Design with two exceptions. One is the ethernet controller and the other one is the sram module. The main microcontroller is an Atmega32. The full BOM I used to build this board will soon be added here
Disclaimer
This pcb design is still work in progress and not fully testet. Still feel free to use it and to contact me if you like to give some advice for improvement
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 100n | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C3, C5, C12, C13, C14, C15, C16, C17, C18, C21, C22, C24, C28, C29, C30 +2 |
| 5 | 1u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C20, C23, C25, C26, C27 |
| 4 | 15p | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C8, C9, C10, C11 |
| 4 | 49.9, 1% | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R6, R8, R9 |
| 2 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 2 | 120 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | R3, R4 |
| 1 | 1000u | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C4 |
| 1 | 100u | Inductor_THT:L_Axial_L7.0mm_D3.3mm_P10.16mm_Horizontal_Fastron_MICC | L1 |
| 1 | 100u | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C2 |
| 1 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C19 |
| 1 | 1N5817 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1 |
| 1 | 1N5822 | Diode_THT:D_DO-201AD_P12.70mm_Horizontal | D2 |
| 1 | 2.32k, 1% | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R7 |
| 1 | ATmega32-16PU | Package_DIP:DIP-40_W15.24mm_LongPads | U3 |
| 1 | AVR-ISP-10 | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | Conn_Coaxial_Power | SamacSys_Parts:PJ037A | J1 |
| 1 | DB9_Female | Connector_Dsub:DSUB-9_Female_Horizontal_P2.77x2.84mm_EdgePinOffset7.70mm_Housed_MountingHolesOffset9.12mm | J4 |
| 1 | ENC28J60x-SP | Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm | U4 |
| 1 | Ferrite_Bead | SamacSys_Parts:INDAD2070W65L670D350 | FB1 |
| 1 | HC-49/S 25MHz | Crystal:Crystal_HC49-U_Vertical | Y2 |
| 1 | HC-49/US 16MHz | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | IS62LV256AL-45ULI | SamacSys_Parts:SOIC127P1210X305-28N | IC2 |
| 1 | Jumper | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | LM2576T-5 | Package_TO_SOT_THT:TO-220-5_Vertical | U7 |
| 1 | MAX232 | Package_DIP:DIP-16_W7.62mm_LongPads | U5 |
| 1 | MCP1700-3302E_TO92 | Package_TO_SOT_THT:TO-92_Inline_Wide | U2 |
| 1 | RJ45_Amphenol_RJMG1BD3B8K1ANR | Connector_RJ:RJ45_Amphenol_RJMG1BD3B8K1ANR | J3 |
| 1 | SN74HC373NE4 | SamacSys_Parts:DIP794W53P254L2540H508Q20N | IC1 |
| 1 | SN74HCT08N | SamacSys_Parts:DIP794W53P254L1930H508Q14N | IC3 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
Questions
How big is the DevelopmentBoard PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DevelopmentBoard use?
59 parts, built around the ATMEGA32-16PU, MAX232N, LM2576T-5.0 and IS62LV256AL-45ULI. 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 DevelopmentBoard KiCad files?
From the kernlpanic/devboard repository on GitHub, at the commit this page was made from: the board is DevelopmentBoard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the DevelopmentBoard design in my own project?
Its repository states no licence, so its author keeps all rights: ask kernlpanic before reusing the design.
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