Eth8019
About the Eth8019 PCB
Eth8019 is an open source PCB design by ddraig68k, published on GitHub under the MIT license. It is a 4-layer board measuring 100 × 62.5 mm, with 30 components from 18 distinct parts.
Other key parts include the 74LS125, XC9536PC44 and RTL8019AS. By type, the board carries 10 capacitors, 10 resistors, 3 ICs, 3 connectors, 3 diodes and 1 crystal.
From the project
Schematic and CAD files for my 68K based computer
The Realtek RTL8019AS is a fully integrated, single-chip NE2000-compatible Ethernet controller with an 8/16-bit ISA-style bus interface and an integrated packet buffer, which makes it straightforward to attach to a simple non-DMA host bus like the 68000's.
A Xilinx XC9536PC44 CPLD provides the address decoding and glue logic between the expansion bus and the RTL8019AS, including the IOCS16B signalling used to negotiate 8/16-bit bus width with the host, as on ISA NE2000 cards.
Main components on the Eth8019
Eth8019 bill of materials (BOM)
30 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS125 | SO-14_5.3x10.2mm_P1.27mm | U1 |
| 1 | XC9536PC44 | PLCC-44 | U2 |
| 1 | RTL8019AS | RTL8019AS | U3 |
| 1 | 20Mhz | Crystal_SMD_HC49-SD | Y1 |
| 1 | D68K_64PIN_BOARD | DIN41612_C_2x32_Male_Horizontal_THT | J1 |
| 1 | JTAG | PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | RJ45 | RJ45_Amphenol_RJMG1BD3B8K1ANR | J3 |
| 1 | Amber | LED_1206_3216Metric | D1 |
| 2 | LED | LED_1206_3216Metric | D2, D3 |
| 6 | 100nF | C_0805_2012Metric | C1, C2, C3, C4, C6, C8 |
| 2 | 10nF | C_0805_2012Metric | C5, C7 |
| 2 | 47uF | CP_Elec_4x5.7 | C9, C10 |
| 1 | 220R | R_0805_2012Metric | R1 |
| 1 | 27K | R_0805_2012Metric | R2 |
| 2 | 10K | R_0805_2012Metric | R3, R4 |
| 1 | 10M | R_0805_2012Metric | R5 |
| 1 | 200R | R_0805_2012Metric | R6 |
| 4 | 680R | R_0805_2012Metric | R7, R8, R9, R10 |
Eth8019 design files
The KiCad project lives in the ddraig68k/hardware repository on GitHub; these links point at the commit this page was built from.
Eth8019: common questions
How big is the Eth8019 PCB?
The Eth8019 measures 100 × 62.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Eth8019?
30 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the Eth8019 design files?
From the ddraig68k/hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Eth8019 design in my own project?
Yes, under the terms of its MIT license, which ddraig68k chose for the repository.
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