HardLabs

286 to bboard

hfvermeer·286_to_bboard·kicad/286_to_bboard.kicad_pcb

286 to bboard PCB layout, top view — open source board by hfvermeer

About the 286 to bboard PCB

286 to bboard is an open source PCB design by hfvermeer, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 33.5 × 78.7 mm, with 28 components from 10 distinct parts.

Other key parts include the 74HC244. By type, the board carries 9 resistors, 8 diodes, 6 capacitors, 3 connectors and 1 IC.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Quick adapter in order to use a 80286 with PLCC package on a breadboard

The debugging leds are optional, and may be left unpopulated if desired. The debugging leds may be switched off too by cutting the solder jumper 'JP1', or re-enabled again by soldering the bridge. It is enabled by default.

The adapter may also use J3 to provide power pins on the bottom side that directly connect to the breadboard power lines.

Pin | Description --- | ----------- 1 | HLDA 2 | PEACK 3 | COD/INT 4 | Lock 5 | M//IO 6 | BHE 7 | S1 8 | S0 9 | D15 10 | D14 11 | D13 12 | D12 13 | D11 14 | D10 15 | D9 16 | D8 17 | D7 18 | D6 19 | D5 20 | D4 21 | D3 22 | D2 23 | D1 24 | D0 25 | ERROR…

286 to bboard, from the project README
From the project README

Main components on the 286 to bboard

74HC244

286 to bboard bill of materials (BOM)

28 components, 10 distinct parts.

QtyPartRefs
1
74HC244
U1
2
Conn_01x30
J1, J2
1
Conn_01x02
J3
1
80286_PLCC
UA1
2
RED
D1, D2
6
HLDA
D3, D4, D5, D6, D7, D8
5
C
C1, C2, C3, C4, C6
1
C
C5
8
1k
R1, R2, R3, R4, R5, R6, R7, R8
1
1k
R9

286 to bboard design files

The KiCad project lives in the hfvermeer/286_to_bboard repository on GitHub; these links point at the commit this page was built from.

286 to bboard: common questions

How big is the 286 to bboard PCB?

The 286 to bboard measures 33.5 × 78.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 286 to bboard?

28 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the 286 to bboard design files?

From the hfvermeer/286_to_bboard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 286 to bboard design in my own project?

Yes, under the terms of its GPL-3.0 license, which hfvermeer chose for the repository.

Similar boards