

Dream 6800
- Size
- 208.3 × 146.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 121
- Nets
- 137
- Pads
- 695
- Tracks, vias
- 1,949, 81
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 20 Mar 2020
- Updated
- 13 Apr 2026
Overview
Dream 6800 is an open-source printed circuit board by SteveJustin1963, from the SteveJustin1963/BOOKS repository on GitHub. It is a 2-layer board of 208.3 × 146.1 mm with 121 parts on 137 nets, routed with 1,949 tracks and 81 vias.
It is built around the 74LS367PC, LM2576-5.0WU and LT1054CP, with the 74LS04PC, 74LS93SC and 74LS10PC among its other parts. Its parts include 36 capacitors, 31 resistors, 27 ICs, 12 connectors and 8 diodes.
Main components
1274LS367PC
PDIP-16Buffers, Drivers, Receivers, TransceiversTexas InstrumentsLM2576-5.0WU
TO-263-5-40℃~+125℃@(TJ) 1 3A 4V~40V 52kHz 5V Buck Buck Built-in Fixed No TO-263-5 DC-DC Converters ROHSMicrochip TechnologyDC-DC ConvertersLT1054CP
PDIP-8-5V 0℃~+70℃ 100mA 10Ω 2.5mA 25kHz 3.5V~15V Inverted Low-power standby、Adaptive switching frequency PDIP-8 Charge Pumps ROHSTexas InstrumentsDC-DC Converters74LS04PC
PDIP-140℃~+70℃ 4.75V~5.25V 6 6.6mA 74LS PDIP-14 InvertersonsemiInverters74LS93SC
-- Counters, DividersTexas InstrumentsCounters, Dividers74LS10PC
PDIP-140℃~+70℃ 3 3.3mA 4.75V~5.25V 74LS Series NAND Gate PDIP-14 Logic GatesonsemiLogic Gates74LS11DC
CDIP-140℃~+70℃ 18ns@5V,50pF 2V 3 4.5V~5.5V 400uA 6.6mA 74LS Series 800mV 8mA AND Gate CDIP-14 Logic GatesTexas InstrumentsLogic Gates74LS123FP-E
-Reset input、Adjustable pulse width、Retriggerable function - Monostable Multivibrators ROHSRenesas ElectronicsMonostable Multivibrators74LS20P-E
DIP-14-20℃~+75℃ 15ns@5V,15pF 2 2.7V 2V 4 4.75V~5.25V 400mV、500mV 400uA 74LS 800mV 8mA NAND Gate DIP-14 Logic Gates ROHSRenesas ElectronicsLogic Gates74LS74PC
DIP-140ns 0℃~+70℃ 1 2 20MHz 3.5pF 35ns@5V,50pF 4.5ns 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Complementary D-Type Rising Edge Set and Reset DIP-14 Flip FlopsTexas InstrumentsFlip FlopsCD4014BE
DIP-16-55℃~+125℃ 1 3V~18V 4000B 500mW 60ns@15V,50pF 8 8.5MHz Parallel or Serial to Serial DIP-16 Shift Registers ROHSTexas InstrumentsShift RegistersCD4040BM
SOIC-16-55℃~+125℃ 1 12 12MHz 3V~18V 500mW 65ns Asynchronous CD4000 Divide-by-2 Falling Edge Reset function Up Counter SOIC-16 Counters, Dividers ROHSTexas InstrumentsCounters, Dividers
README
README.mdParts
121| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 100nF | C2 | C11, C19, C20, C21, C22, C23, C24, C25, C26, C27, C28, C29, C30, C31, C32, C33 +1 |
| 6 | 2k2 | R4 | R4, R5, R9, R22, R27, R29 |
| 5 | 10k | R4 | R11, R14, R18, R23, R28 |
| 4 | 1N4148 | DO-41 | D1, D2, D3, D4 |
| 4 | CONN_1 | 1pin | P7, P8, P9, P10 |
| 3 | 100uF | C1V8 | C13, C16, C17 |
| 3 | 1k5 | R4 | R15, R16, R17 |
| 3 | 22uF | C1V7 | C15, C18, C35 |
| 3 | 4k7 | R4 | R3, R7, R20 |
| 2 | 10nF | C2 | C5, C8 |
| 2 | 150pF | C2 | C1, C9 |
| 2 | 220 | R4 | R10, R25 |
| 2 | 22k | R4 | R12, R13 |
| 2 | 470 | R4 | R8, R26 |
| 2 | 6116 | DIP-24__600 | U3, U4 |
| 2 | 74LS04 | DIP-14__300 | U11, U17 |
| 2 | 74LS367 | DIP-16__300 | U5, U6 |
| 2 | 74LS93 | DIP-14__300 | U14, U15 |
| 1 | 10 | R4 | R31 |
| 1 | 100R | R4 | R2 |
| 1 | 10uF | C1V5 | C3 |
| 1 | 10uH | Choke_Ax_01 | L1 |
| 1 | 120 | R4 | R24 |
| 1 | 120uH | Choke_07 | L2 |
| 1 | 12v DC | BARREL_JACK | 12v DC |
| 1 | 1500uF | C2V12 | C14 |
| 1 | 180_DIN | 180 DIN 5p | J2 |
| 1 | 1N4002 | D4 | D8 |
| 1 | 1N5402 | MBR350 | D6 |
| 1 | 1k | R4 | R1 |
| 1 | 1nF | C2 | C6 |
| 1 | 1uF | C1V5 | C36 |
| 1 | 2.2uF | C1V5 | C2 |
| 1 | 22nF | C2 | C7 |
| 1 | 2716 | DIP-24__600 | U2 |
| 1 | 2N3904 | TO92 | Q2 |
| 1 | 2N3906 | TO92 | Q1 |
| 1 | 33nF | C2 | C4 |
| 1 | 3n3 | C2 | C10 |
| 1 | 47 | R4 | R6 |
| 1 | 47pf | C2 | C12 |
| 1 | 4Mhz | HC-49V | X1 |
| 1 | 5k | RV_Bourns3386H | RV1 |
| 1 | 5k6 | R4 | R19 |
| 1 | 6k8 | R4 | R21 |
| 1 | 74121 | DIP-14__300 | U22 |
| 1 | 7440 | DIP-14__300 | U20 |
| 1 | 74LS08 | DIP-14__300 | U12 |
| 1 | 74LS10 | DIP-14__300 | U10 |
| 1 | 74LS11 | DIP-14__300 | U18 |
| 1 | 74LS123 | DIP-16__300 | U19 |
| 1 | 74LS138 | DIP-16__300 | U25 |
| 1 | 74LS20 | DIP-14__300 | U16 |
| 1 | 74LS74 | DIP-14__300 | U21 |
| 1 | 75 | R4 | R30 |
| 1 | BAT43 | DO-41 | D5 |
| 1 | CD4014 | DIP-16__300 | U7 |
| 1 | CD4040 | DIP-16__300 | U13 |
| 1 | EPROM | PIN_ARRAY_3X1 | P1 |
| 1 | Expansion Connector | PIN_ARRAY_20X2 | P6 |
| 1 | I/O Pins | VinKK8 | P3 |
| 1 | Key Matrix | VinKK8 | P4 |
| 1 | Keys | VinKK3 | P5 |
| 1 | LM2576-5.0 | TO220-5H | U26 |
| 1 | LM741 | DIP-8__300 | U23 |
| 1 | LT1054 | DIP-8__300 | U27 |
| 1 | MBR350 | MBR350 | D7 |
| 1 | MC6800 | DIP-40__600 | U1 |
| 1 | MC6820 | DIP-40__600 | U9 |
| 1 | MC6875 | DIP-16__300 | U8 |
| 1 | NE566 | DIP-8__300 | U24 |
| 1 | Spkr | VinKK3 | P2 |
| 1 | Video_Out | PhonoSkt | J1 |
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Questions
How big is the Dream 6800 PCB?
It measures 208.3 × 146.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dream 6800 use?
121 parts, built around the 74LS367PC, LM2576-5.0WU, LT1054CP and 74LS04PC. 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 Dream 6800 KiCad files?
From the SteveJustin1963/BOOKS repository on GitHub, at the commit this page was made from: the board is DREAM 6800/Dream6800_40th_Anniv/KiCad - Dream 6800/Dream_6800.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dream 6800 design in my own project?
Its repository states no licence, so its author keeps all rights: ask SteveJustin1963 before reusing the design.