Isa8 backplane
About the Isa8 backplane PCB
Isa8 backplane is an open source PCB design by Vakon84, published on GitHub under the GPL-3.0 license. It is a board measuring 116.8 × 154.9 mm, with 60 components from 22 distinct parts.
Other key parts include the 74HCT74, 74HCT14 and LM7905CT. By type, the board carries 22 capacitors, 7 resistors, 4 diodes, 3 ICs, 3 connectors and 1 switch.
From the project
Please refer to Building Instructions page for detailed instructions.
Please refer to Building Instructions page for detailed instructions.
Note: -5V is not provided by most ATX power supplies. It is generated using an on board voltage regulator instead
ISA 8-bit Backplane project on Mouser.com - View and order all components except of the PCB.
ISA 8-bit Backplane project on OSH Park - View and order the PCB.
Component type | Reference | Description | Quantity | Possible sources and notes ------------------ | --------- | --------------------------------- | -------- | -------------------------- PCB | | ISA 8-bit Backplane PCB - Version 1.0 | 1 | Refer to the…
Main components on the Isa8 backplane
Isa8 backplane bill of materials (BOM)
60 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HCT74 | IC_DIP14_300 | U1 |
| 1 | 74HCT14 | IC_DIP14_300 | U2 |
| 1 | LM7905CT | IC_TO220-3_Horiz | U3 |
| 1 | POWER | Conn_Power_ATX_20pin | P1 |
| 1 | POWER_SW | Conn_Pin_Header_2x1_2.54mm | P2 |
| 1 | POWER_LED | Conn_Pin_Header_2x1_2.54mm | P3 |
| 1 | BUSPC_DEV | Conn_Edge_ISA8 | BUS1 |
| 6 | BUSPC_HOST | Conn_Edge_ISA8 | BUS2, BUS3, BUS4, BUS5, BUS6, BUS7 |
| 8 | HOLE | Hole_4mm | HOLE1, HOLE2, HOLE3, HOLE4, HOLE5, HOLE6, HOLE7, HOLE8 |
| 3 | 10k | Conn_SIL10 | RR1, RR2, RR3 |
| 1 | 10k | Conn_SIL6 | RR4 |
| 1 | 4.7k | Conn_SIL6 | RR5 |
| 1 | POWER | Switch_Tactile_6mm | SW1 |
| 1 | POWER | LED_3mm | D1 |
| 1 | ACTIVITY | LED_3mm | D2 |
| 2 | 1N4148 | Diode_762 | D3, D4 |
| 19 | 10uF | Cap_Tant_508 | C1, C2, C3, C4, C5, C6, C7, C8 +11 |
| 1 | 1uF | Cap_Tant_508 | C20 |
| 2 | 0.1uF | Cap_Cer_508 | C21, C22 |
| 2 | 10k | Res_762 | R1, R2 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1k | Res_762 | R3 |
| 4 | 470 | Res_762 | R4, R5, R6, R7 |
Isa8 backplane design files
The KiCad project lives in the Vakon84/isa8_backplane repository on GitHub; these links point at the commit this page was built from.
Isa8 backplane: common questions
How big is the Isa8 backplane PCB?
The Isa8 backplane measures 116.8 × 154.9 mm and is 1.6002 mm thick.
How many components are on the Isa8 backplane?
60 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Isa8 backplane design files?
From the Vakon84/isa8_backplane repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Isa8 backplane design in my own project?
Yes, under the terms of its GPL-3.0 license, which Vakon84 chose for the repository.