2 layers218 × 125 mm
EVA1 production
roberto314/EVA-1_Reproduction
Recreation of the very rare K-K Systems EVA-1 Display Adapter for the Epson HX-20 Computer
116 parts
2 layers114.3 × 106.7 mm
Xt ide
glitchwrks/xt_ide126XT-IDE 8-Bit IDE Controller
- Size
- 114.3 × 106.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 46
- Nets
- 125
- Pads
- 401
- Tracks, vias
- 1,528, 96
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 13 May 2016
- Updated
- 11 Nov 2024
Overview
Xt ide is an open-source printed circuit board by glitchwrks, from the glitchwrks/xt_ide repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 114.3 × 106.7 mm with 46 parts on 125 nets, routed with 1,528 tracks and 96 vias.
It is built around the 74LS245SC, 74LS04PC and 74LS573PC, with the 74LS32SC among its other parts. Its parts include 12 capacitors, 11 ICs, 7 connectors, 4 resistors and 2 switches. It belongs with the retro computing and games boards of this library.
Main components
474LS245SC
-0℃~+70℃ 12ns@5V,45pF 15mA 24mA 4.75V~5.25V 74LS 8 Bidirectional Output enable Schmitt trigger Tri-State - Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
74LS04PC
PDIP-140℃~+70℃ 4.75V~5.25V 6 6.6mA 74LS PDIP-14 InvertersonsemiInverters
74LS573PC
DIP-200℃~+70℃ 10ns 3ns 4.75V~5.25V 74LS 8 D Latch Tri-State DIP-20 Latches ROHSTexas InstrumentsLatches
74LS32SC
-- Logic Gates ROHSTexas InstrumentsLogic Gates
README
README.mdXT-IDE 8-Bit IDE Controller
Glitch Works continuing extension of the XT-IDE rev 2 ISA controller. This board, when used with a custom BIOS like the XT-IDE Universal BIOS, allows the use of modern 16-bit IDE devices on the 8-bit ISA bus.
More info on the Glitch Works project to provide boards, kits, and fully assembled units can be found here. A writeup on the rev 4 design process is available here.
If you're looking for the rev 3 branch, it can be found here. The README and related documentation have been preserved along with the design files.
Jumper Settings
modem7 created a great set of jumper diagrams for the rev 4 boards, available on his site.
Bill of Materials
You can find a BOM with Mouser part numbers here. Do note that you can purchase complete parts kits from The Glitch Works in addition to bare PC boards.
Slot 8 Support
If you want to use this card with an IBM 5160 PC/XT in Slot 8, you need a small daughterboard to make this happen. The project files for the board are available on GitHub. You can find a writeup on the design and assembly process here. If you'd like to order a board, parts kit, or assembled module, see the Glitch Works XT-IDE page for ordering information.
Contributors
- Scott Christensen: inspriation 16-bit ATA interface for the 8-bit ISA bus
- Jeff Leyda/Hargle: original production board work, original BIOS work
- Andrew Lynch/N8VEM: layout work, initial group buy(s) on earlier revisions
- modem7: documentation, switch/jumper drawings
Please contact me or send a pull request to get your name added to the list!
There were no authors/contributors listed in the XT-IDE rev 2 schematics/board layout I started with. If you have contributed to this project and would like your name here, on the schematic, or on the board layout, please let me know. You can open an issue or submit a pull request.
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | C | gw_axial_res_cap:AX_300 | C1, C2, C3, C4, C5, C6, C7, C8, C10, C11 |
| 3 | CONN_1 | testpoints:TH_TESTPOINT | TP1, TP2, TP3 |
| 2 | 10K | gw_axial_res_cap:AX_400 | R3, R4 |
| 2 | 10K | gw_sips:SIP10 | RP1, RP2 |
| 2 | 470R | gw_axial_res_cap:AX_400 | R1, R2 |
| 2 | 74LS04 | gw_dips:DIP-14_300_OBROUND | U4, U6 |
| 2 | 74LS245 | gw_dips:DIP-20_300_OBROUND | U3, U11 |
| 2 | 74LS573 | gw_dips:DIP-20_300_OBROUND | U1, U2 |
| 2 | 74LS688 | gw_dips:DIP-20_300_OBROUND | U8, U10 |
| 2 | CONN_1 | mounting:120mil_no_silkscreen | P6, P7 |
| 2 | CONN_2 | headers_with_detent:1x2 | J3, J4 |
| 2 | CONN_3 | headers_with_detent:1x3 | J1, J2 |
| 1 | 28C256 | gw_dips:DIP-28_600_OBROUND | U9 |
| 1 | 47uF | gw_caps_polarized:CP_RAD_250_100 | C12 |
| 1 | 74LS138 | gw_dips:DIP-16_300_OBROUND | U7 |
| 1 | 74LS32 | gw_dips:DIP-14_300_OBROUND | U5 |
| 1 | BUSPC | edge_connectors:ISA-8BIT-XT-IDE | BUS1 |
| 1 | C | gw_axial_res_cap:AX_400 | C9 |
| 1 | CONN_20X2 | gw_headers:STRAIGHT_2x20 | IDE1 |
| 1 | I/O ADDR | gw_dips:DIP-16_300_OBROUND_NO_NOTCH | SW1 |
| 1 | INTERRUPT | headers_with_detent:5x2 | J5 |
| 1 | LED | gw_leds:LED-5MM | D1 |
| 1 | ROM OPT | gw_dips:DIP-16_300_OBROUND_NO_NOTCH | SW2 |
The 44 most common of 46 parts.
Questions
How big is the Xt ide PCB?
It measures 114.3 × 106.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Xt ide use?
46 parts, built around the 74LS245SC, 74LS04PC, 74LS573PC and 74LS32SC. 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 Xt ide KiCad files?
From the glitchwrks/xt_ide repository on GitHub, at the commit this page was made from: the board is XT-IDE.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Xt ide design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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