2 layers49 × 53 mm
Sdcard
trcwm/HD6309-Computer
A computer based on the HD6309 CPU, done for the Retro Challenge 2017/04.
12 parts17
2 layers133 × 82 mm
HD6309 computer
trcwm/HD6309-Computer17A computer based on the HD6309 CPU, done for the Retro Challenge 2017/04.
- Size
- 133 × 82 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 52
- Nets
- 82
- Pads
- 382
- Tracks, vias
- 1,696, 196
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 30 Apr 2017
- Updated
- 23 Oct 2019
Overview
HD6309 computer is an open-source printed circuit board by trcwm, from the trcwm/HD6309-Computer repository on GitHub. It is a 2-layer board of 133 × 82 mm with 52 parts on 82 nets, routed with 1,696 tracks and 196 vias.
It is built around the HD63C09ERP, 74HC541D and 74HCT245, with the 74HC574D among its other parts. Its parts include 12 capacitors, 12 ICs, 11 resistors, 5 connectors and 3 diodes. It belongs with the retro computing and games boards and the FPGA and CPLD boards of this library.
Main components
4
HD63C09ERP
-Others - Microcontrollers (MCU/MPU/SOC) ROHSRenesas ElectronicsMicrocontrollers (MCU/MPU/SOC)
74HC541D
SO-20-300mil-40℃~+125℃ 1 12ns@4.5V,50pF 160uA 2V~6V 7.8mA 7.8mA 74HC 8 Output enable Tri-State Unidirectional SO-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers
74HCT245
DIP-20-40℃~+85℃ 28ns@4.5V 4.5V~5.5V 6mA 6mA 74HCT 8 8uA Bidirectional TTL-compatible CMOS Tri-State DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core Elec74 Series74HC574D
SOP-20L-40℃~+125℃ 1 13ns 15ns@6V,50pF 2.7V~6V 20uA 28MHz 5ns 6.5pF 7.8mA 7.8mA 74HC Series 8 D-Type Enable Rising Edge Tri-State SOP-20L Flip Flops ROHSMDDFlip Flops
README
README.mdHD6309-Computer
A computer based on the HD6309 CPU, done for the Retro Challenge 2017/04.
Read the blog: https://namoseley.wordpress.com/category/retrochallenge/
Features:
- HD6309 CPU
- Binary compatible to MC6809
- ..but faster instruction execution,
- ..extended registers,
- ..additional instructions,
- and lots more!
- 1MB of RAM:
- mapped in 32K pages at 0x0000 .. 0x7FFF
- fixed page at 0x8000 .. 0xDFFF
- 2KB of IO space:
- SC16C550B UART at 0xE000
- 8-bit expansions port at 0xE010(untested!)
- Memory map register:
- 5-bit entry sets A15..A19 on RAM
- reg at address 0xE800
- 4KB of ROM:
- Memory check
- SREC loader
Licence: CERN Open Hardware Licence v1.2
Development time provided by: http://www.moseleyinstruments.com
Parts
52| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100n | Capacitors_SMD:C_0805_HandSoldering | C3, C4, C5, C6, C7, C8, C9, C10, C11, C12 |
| 7 | 10k | Resistors_SMD:R_0805_HandSoldering | R1, R2, R3, R5, R6, R7, R8 |
| 4 | MountingHole3mm | Mounting_Holes:MountingHole_3.2mm_M3_DIN965 | M1, M2, M3, M4 |
| 3 | 330 | Resistors_SMD:R_0805_HandSoldering | R4, R9, R10 |
| 3 | LED | mi_footprints:LED_D3.0mm_centered | D1, D2, D3 |
| 2 | 74HC541 | Housings_SOIC:SOIC-20W_7.5x12.8mm_Pitch1.27mm | U5, U8 |
| 2 | ATF16V8B | Housings_DIP:DIP-20_W7.62mm_LongPads | U2, U4 |
| 1 | 10u | Capacitors_SMD:CP_Elec_6.3x5.3 | C1 |
| 1 | 12 MHz osc | mi_footprints:OSCSMD7x5 | U3 |
| 1 | 1u | Capacitors_SMD:CP_Elec_6.3x5.3 | C2 |
| 1 | 2N3904 | TO_SOT_Packages_THT:TO-92_Inline_Wide | Q1 |
| 1 | 4k7 | Resistors_SMD:R_0805_HandSoldering | R11 |
| 1 | 7.3728 MHz | mi_footprints:OSCSMD7x5 | U9 |
| 1 | 74HC574 | Housings_SOIC:SOIC-20W_7.5x12.8mm_Pitch1.27mm | U7 |
| 1 | 74HCT245 | Housings_SOIC:SOIC-20W_7.5x12.8mm_Pitch1.27mm | U6 |
| 1 | AS6C8008 | mi_footprints:TSOP-II_44pin_W400mil | U10 |
| 1 | AT28C64B | Housings_DIP:DIP-28_W15.24mm_LongPads | U12 |
| 1 | CONN_01X02 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | P2 |
| 1 | CONN_01X05 | Pin_Headers:Pin_Header_Straight_1x05_Pitch2.54mm | P5 |
| 1 | CONN_01X08 | Pin_Headers:Pin_Header_Straight_1x08_Pitch2.54mm | P3 |
| 1 | CONN_01X10 | Pin_Headers:Pin_Header_Straight_1x10_Pitch2.54mm | P4 |
| 1 | HD63C09 | Housings_DIP:DIP-40_W15.24mm_LongPads | U1 |
| 1 | Logo | mi_footprints:HD6309_computer_name | LOGO3 |
| 1 | Logo | mi_footprints:moseley_instruments_logo_smaller | LOGO1 |
| 1 | Logo | mi_footprints:retro_challenge_logo | LOGO2 |
| 1 | SC16C550B | Housings_QFP:LQFP-48_7x7mm_Pitch0.5mm | U11 |
| 1 | SW_PUSH_SMALL_H | Buttons_Switches_ThroughHole:SW_PUSH_6mm | SW1 |
| 1 | USB_B | Connect:USB_B | P1 |
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Questions
How big is the HD6309 computer PCB?
It measures 133 × 82 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HD6309 computer use?
52 parts, built around the HD63C09ERP, 74HC541D, 74HCT245 and 74HC574D. 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 HD6309 computer KiCad files?
From the trcwm/HD6309-Computer repository on GitHub, at the commit this page was made from: the board is kicad/HD6309_computer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the HD6309 computer design in my own project?
Its repository states no licence, so its author keeps all rights: ask trcwm before reusing the design.