Isa8 eth main
theos10·isa8_eth-main·KiCad/ISA8_Ethernet.kicad_pcb
About the Isa8 eth main PCB
Isa8 eth main is an open source PCB design by theos10, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 104.2 × 58.7 mm, with 25 components from 18 distinct parts.
Other key parts include the RTL8019AS and 93LC46C. By type, the board carries 9 capacitors, 8 resistors, 3 switches, 2 ICs, 1 crystal and 1 connector.
From the project
ISA 8-Bit Ethernet Controller
Clean the PCB with alcohol Apply fluid flux to SMD components pads Solder U1 RTL8019 IC Solder R1 - R7 resistors and RN1 - RN4 resistor arrays Note that RN1 - RN3 are only required if using DIP switches for configuration. They are not required for jumperless configuration Solder C1 - C8 ceramic capacitors Solder C9 and C10 tantalum capacitors Solder Y1 crystal Optional: Program U3 EEPROM. Make sure to use unique MAC address Note: EEPROM can be programmed later using PG8019 utility Solder U3 EEPROM Optional: Solder SW1 - SW4 DIP switches and U2 IC socket Solder J1 Ethernet jack with integrated…

Main components on the Isa8 eth main
Isa8 eth main bill of materials (BOM)
25 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RTL8019AS | IC_PQFP-100_14x20mm_P0.65mm_Hand_Soldering | U1 |
| 1 | 93LC46C | SO-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | 20MHz | Crystal_HC-49U_Vert | Y1 |
| 1 | RJMG1BD3B8K1ANR | RJ45_Amphenol_RJMG1BD3B8K1ANR | J1 |
| 1 | BUSPC_DEV | Conn_Edge_PCB_ISA8 | BUS1 |
| 1 | CONFIG | Switch_DIP_2_Positions | SW1 |
| 1 | IRQ | Switch_DIP_2_Positions | SW2 |
| 1 | IO_ADDR | Switch_DIP_4_Positions | SW3 |
| 2 | 10pF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2 |
| 2 | 0.01uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4 |
| 3 | 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C6, C8 |
| 2 | 22uF | CP_EIA-3528-15_AVX-H_Pad1.50x2.35mm_HandSolder | C9, C10 |
| 1 | 200 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 2 | 470 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3 |
| 1 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 27k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | 1M | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 2 | 10k | R_Array_Convex_4x0603 | RN1, RN2 |
Isa8 eth main design files
The KiCad project lives in the theos10/isa8_eth-main repository on GitHub; these links point at the commit this page was built from.
- LayoutKiCad/ISA8_Ethernet.kicad_pcb
- SchematicKiCad/ISA8_Ethernet.kicad_sch
Isa8 eth main: common questions
How big is the Isa8 eth main PCB?
The Isa8 eth main measures 104.2 × 58.7 mm, has 2 copper layers and is 1.6002 mm thick.
How many components are on the Isa8 eth main?
25 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the Isa8 eth main design files?
From the theos10/isa8_eth-main repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Isa8 eth main design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which theos10 chose for the repository.