2 layers127 × 69.9 mm
Ezcgi
baldengineer/bit-preserve
Project for capturing vintage, classic, aka old computer schematics in KiCad.
34 parts446
2 layers76.2 × 83.8 mm
Neotron Expansion Template
Neotron-Compute/Neotron-Expansion-Template1Example Neotron Expansion card
- Size
- 76.2 × 83.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 40
- Pads
- 125
- Tracks, vias
- 212, 5
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 18 Aug 2021
- Updated
- 29 Jul 2022
Overview
Neotron Expansion Template is an open-source printed circuit board by Neotron-Compute, from the Neotron-Compute/Neotron-Expansion-Template repository on GitHub. It is a 2-layer board of 76.2 × 83.8 mm with 28 parts on 40 nets, routed with 212 tracks and 5 vias.
It is built around the 34LC02-I/P, MCP23S17-E/SP and CF14JT330R, with the C315C104M5U5TA, CF14JT10K0 and 4609X-101-103LF among its other parts. Its parts include 9 resistors, 8 diodes, 3 capacitors, 2 ICs and 1 connector.
Main components
7
34LC02-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 1MHz 2.2V~5.5V 200 Years 2Kbit 5ms Hardware write protection function、Noise suppression function、Software write protection function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM
MCP23S17-E/SP
DIP-28-40℃~+125℃ 1.8V~5.5V 10MHz 16 Interrupt Output Reset function、Cascading and address extension SPI DIP-28 I/O Expanders ROHSMicrochip TechnologyI/O Expanders
CF14JT330R
插件,D2.3xL6mm-400ppm/℃~0ppm/℃ -55℃~+155℃ 250mW 330Ω Carbon Film Resistor ±5% 插件,D2.3xL6mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole Resistors
C315C104M5U5TA
插件100nF 50V Z5U ±20% Plugin Multilayer Ceramic Capacitors MLCC - Leaded ROHSKEMETMultilayer Ceramic Capacitors MLCC - Leaded
CF14JT10K0
插件,D2.3xL6mm-500ppm/℃~0ppm/℃ -55℃~+155℃ 10kΩ 250mW Carbon Film Resistor ±5% 插件,D2.3xL6mm Through Hole Resistors ROHSStackpole Electronics (SEI)Through Hole Resistors
4609X-101-103LF
SIP-9-2.54mm10kΩ 200mW 8 9 ±100ppm/℃ ±2% SIP-9-2.54mm Resistor Networks, Arrays ROHSBournsResistor Networks & ArraysDS01C-254-L-08BE
插件,P=2.54mm-40℃~+85℃ 2.54mm 24V 25mA 8 SPST 插件,P=2.54mm DIP Switches ROHSCUIDIP Switches
README
README.mdNeotron Expansion Template
This repository contains a template PCB you can use as the start of a new Neotron Expansion Card design.
It contains an MCP23S17 SPI I/O expander, connected to the SPI bus. It also contains an I²C EEPROM connected to the I²C bus and the unique slot address lines. The I/O expander has eight LEDs and eight switches fitted.
There is a jumper which will allow you to program the EEPROM from your Neotron system. Normally this jumper is not fitted, making the EEPROM read-only. The contents of the EEPROM are TBD, but will describe the expansion card to the Neotron OS so that it can be auto-configured and any necessary drivers loaded.
Using this template
To use this template, simply copy the files in this repository and edit away! You'll probably want to delete everything on the schematic except the edge connector and the EEPROM (unless you really need an SPI I/O exander...).
Licence
This schematic and PCB design is Copyright (c) 2022 The Neotron Developers, et al.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Contribution Agreement
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be licensed as above, without any additional terms or conditions.
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R3, R4, R5, R6, R7, R8, R9 |
| 8 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8 |
| 3 | 100n | Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm | C1, C2, C3 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.7mm_M2.5_Pad | H1, H2 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 10k | Resistor_THT:R_Array_SIP9 | RN1 |
| 1 | 34LC02 | Package_DIP:DIP-8_W7.62mm | U2 |
| 1 | MCP23S17 | Package_DIP:DIP-28_W7.62mm | U1 |
| 1 | Neotron-Expansion-Edge | Neotron-Common-Hardware:Neotron-Expansion-Edge | J1 |
| 1 | SW_DIP_x08 | Package_DIP:DIP-16_W7.62mm_LongPads | SW1 |
| 1 | Two-way Jumper | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
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Questions
How big is the Neotron Expansion Template PCB?
It measures 76.2 × 83.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Neotron Expansion Template use?
28 parts, built around the 34LC02-I/P, MCP23S17-E/SP, CF14JT330R and C315C104M5U5TA. 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 Neotron Expansion Template KiCad files?
From the Neotron-Compute/Neotron-Expansion-Template repository on GitHub, at the commit this page was made from: the board is Kicad/Neotron-Expansion-Template.kicad_pcb and its schematic Kicad/Neotron-Expansion-Template.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Neotron Expansion Template design in my own project?
Its repository states no licence, so its author keeps all rights: ask Neotron-Compute before reusing the design.