2 layers99.8 × 99.8 mm 6809ide, the printed circuit board in 3D

6809ide

HD6309 8 bit IDE

Size: 99.8 × 99.8 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 23
Nets: 101
Pads: 233
Tracks, vias: 649, 111
Pours: 1
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 28 Oct 2023
Updated: 28 Oct 2023

Overview

6809ide is an open-source printed circuit board by jimbro1000, from the jimbro1000/6309ide repository on GitHub. It is a 2-layer board of 99.8 × 99.8 mm with 23 parts on 101 nets, routed with 649 tracks and 111 vias.

It is built around the 74LS245SC and 74LS574N. Its parts include 5 capacitors, 5 resistors, 5 ICs, 4 connectors and 1 diode. It belongs with the retro computing and games boards and the FPGA and CPLD boards of this library.

Main components

README

README.md

8 Bit IDE for 6309 SBC

Inspired (and partially copied from) Breadbording Labs (https://www.youtube.com/@breadboardinglabs) which is, in turn, taken from other existing 8 bit IDE projects.

This design is configured to work with my 6309 SBC project.

Status

This is a work in progress and is not ready for production. The two SEL lines are not wired and need some address selection logic to fit the design to the available mapped memory

Drivers

The IDE operation requires software drivers to simplify operation. It also needs programming for the GAL

GAL Definition

Input (1-9):
A0, A4, A5, A6, A6, E, SEL0, RW, SEL1

Output (19-12):
!UDW, !UDR, !LDW, !IOW, !IOR, !CS0, !CS1, !LDR

ACT = !A5 & !A6 & !A7 & !SEL0

CS0 = !A4 & ACT
CS1 = A4 & ACT
IOR = !A0 & ACT & RW
IOW = A0 & ACT & !RW
LDR = !A0 & ACT & RW
LDW = !A0 & ACT & !RW
UDR = A0 & ACT & RW
UDW = A0 & ACT & !RW

(note: IOR and LDR are the same)

Category and platform

Retro computing and games FPGA and CPLD

Project files

Show this board on your page

https://pcbkit.io/boards/jimbro1000/6309ide

The board's own page, for a message or a post.

Source

Repository: jimbro1000/6309ide
Board file: 6809ide.kicad_pcb
Commit: aeef387
Licence: Not stated

Parts

Qty	Value	Footprint	References
4	2uF	Capacitor_SMD:CP_Elec_4x3	C1, C2, C3, C4
2	2K2	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4, R5
2	74LS245	Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm	U1, U2
2	74LS574	Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm	U3, U4
2	Power Link	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J1, J3
1	10K	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3
1	10uF	Capacitor_SMD:CP_Elec_6.3x3	C5
1	330R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1
1	3K9	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2
1	Expansion Port	Connector_PinHeader_2.54mm:PinHeader_2x30_P2.54mm_Vertical	J2
1	GAL16V8	Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm	U5
1	IDE IDC	Connector_IDC:IDC-Header_2x20_P2.54mm_Vertical	J4
1	LED	LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder	D1
1	LKA	Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm	JP1
1	LKB	Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm	JP2
1	NPN	Package_TO_SOT_SMD:SOT-23-3	Q1

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Questions

How big is the 6809ide PCB?

It measures 99.8 × 99.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the 6809ide use?

23 parts, built around the 74LS245SC and 74LS574N. 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 6809ide KiCad files?

From the jimbro1000/6309ide repository on GitHub, at the commit this page was made from: the board is 6809ide.kicad_pcb and its schematic 6809ide.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the 6809ide design in my own project?

Its repository states no licence, so its author keeps all rights: ask jimbro1000 before reusing the design.