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2 layers478 × 183 mmHC2000, the printed circuit board in 3D

HC2000 Project

Size
478 × 183 mm
Copper layers
2
Thickness
1.6 mm
Parts
259
Nets
479
Pads
1,929
Tracks, vias
6,876, 1,147
Pours
12
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
5 Apr 2023
Updated
23 Jul 2023

Overview

HC2000 is an open-source printed circuit board by badrianiulian, from the badrianiulian/HC2000 repository on GitHub. It is a 2-layer board of 478 × 183 mm with 259 parts on 479 nets, routed with 6,876 tracks and 1,147 vias.

It is built around the 74LS125DC, 74LS74PC and 74LS161DC, with the 74LS257PC, 74LS32SC and 74LS04PC among its other parts. Its parts include 77 resistors, 17 capacitors, 8 diodes, 5 connectors and 1 transistor.

Main components

12

README

README.md

HC2000

Note în limba română

Proiect de reconstrucție HC2000

Ce s-a folosit pentru a crea acest proiect:

  • Versiunea originală a schemei HC-2000 Rev B care a fost obținută prin intermediul grupului Romanian Home Computer (mulțumiri speciale domnului George Chirtoacă)
  • Schema Eagle a HC-2000 Rev B realizată de dl. Liviu Grama, care este de asemenea membru al grupului Romanian Home Computer
  • Un exemplar fizic al unui HC-2000 Rev E furnizat de dl. Oică Cezar pentru reparații

Note despre diferențe:

  • HC2000_ORIGINAL este proiectul realizat folosind scanările cablajului exemplarului fizic HC-2000 Rev E
  • gerberele au fost create folosind proiectul HC2000, care este Rev E modificată pentru a include firele lipite peste cablaj
  • observați că unele componente au două valori precum R28, R40 și R41 egale cu 220/1K: prima valoare 220 este pentru Rev B și a doua valoare 1K este pentru Rev E
  • unde se întâlnește un "-", înseamnă că acea componentă lipsește pe cablajul Rev E, dar locul de amplasare al componentei este disponibil
  • pentru conectorul de alimentare am adăugat pe lângă locul de amplasare al conectorului original, un conector cu 6 pini DIN

IMPORTANT: În prima revizie a proiectului s-au strecurat câteva greșeli:

- Au rămas două circuite cu titulatura veche de pe proiectul original care a fost convertit

English notes

HC2000 rebuild project

What was used to create this project:

  • Original version of the schematic of HC-2000 Rev B that was obtained through the Romanian Home Computer group (special thanks to mr. George Chirtoacă)
  • Eagle schematic of the HC-2000 Rev B made by mr. Liviu Grama also a member of the Romanian Home Computer group
  • A physical HC-2000 Rev E provided by mr. Oică Cezar for repairs

Notes on the diferences:

  • HC2000_ORIGINAL is the project made using PCB scans of the physical HC-2000 Rev E
  • gerbers were created using HC2000 project witch is the modified Rev E witch includes the over-the-PCB soldered wires
  • notice some components have two values like R28, R40 and R41 equal 220/1K: first value 220 is for Rev B and second value 1K is for Rev E
  • where a "-" is encountered, it means that the component is missing on Rev E but the footprint is available
  • for the power connector I added side by side with the original connector's footprint, a 6-pin DIN connector

IMPORTANT: In the original project a few mistakes slipped in.

- Two circuits retained the old names from the original converted project

Parts

259
QtyValueFootprintReferences
25u1HC2000:C025-024X044CD1, CD11, CD13, CD15, CD16, CD17, CD19, CD20, CD21, CD22, CD24, CD25, CD26, CD27, CD30, CD31 +9
241kHC2000:0204_7R1, R2, R3, R4, R13, R14, R34, R37, R38, R44, R47, R49, R51, R53, R55, R58 +8
1110kHC2000:0204_7R7, R8, R9, R11, R15, R16, R18, R20, R25A0, R29, R52
10-HC2000:C025-024X044CD2, CD4, CD7, CD8, CD10, CD14, CD28, CD29, CD34, CD38
81N4148HC2000:DO35-10D1, D2, D3, D4, D5, D6, D7, D8
874LS74HC2000:DIL14UB1, UD3, UD10, UE10, UF4, UF10, UG12, UH12
6100uHC2000:C025-024X044CD3, CD5, CD12, CD18, CD23, CX0
674LS161HC2000:DIL16UD12, UE5, UF2, UF5, UG5, UH7
5470HC2000:0204_7R19, R19B0, R33, R43, R50A0
574LS08HC2000:DIL14UD1, UE2, UG10, UG11, UH5
574LS138HC2000:DIL16UA9, UB10, UE4, UF8, UH10
574LS257HC2000:DIL16UC4, UC5, UD5, UG7, UH6
574LS32HC2000:DIL14UC3, UE3, UF9, UG9, UH8
4220/1kHC2000:0204_7R28, R40, R41, R56
44n7HC2000:C025-025X050C12, C13, C16, C17
474LS04HC2000:DIL14UC1, UE11, UG0, UG4
474LS175HC2000:DIL16UC12, UF3, UG3, UH1
3330/-HC2000:0204_7R26, R42, R45
3560HC2000:0204_7R39, R46, R57
374LS374HC2000:DIL20UD6, UF6, UG6
3CLOSED with 1 EPROMHC2000:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mmJX2, JX3, JX4
2-HC2000:JP1JP2, JP5
2.HC2000:HC-POWERJ4, J6
2100nHC2000:C025-030X050C1, C3
2270pHC2000:C025-025X050C10, C11
22kHC2000:0204_7R12, R17
22k x 4bit CMOS RAM/-HC2000:DIL18UA8, UC8
2330/300HC2000:0204_7R5, R60
23k9HC2000:0204_7R54, R61
2510HC2000:0204_7R65, R71
274LS00HC2000:DIL14UB2, UH3
274LS09HC2000:DIL14UA23, UA34
274LS174HC2000:DIL16UB9, UF7
274LS244HC2000:DIL20UA1, UC7
275/69HC2000:0204_7R30, R48
2910HC2000:0204_7R62, R67
2BC177HC2000:TO18T4, T5
2FDD-CONHC2000:2X17J7, J8
2TMM41464AP-12HC2000:DIL18UD7, UE7
1.HC2000:10X04MTAJ9
110-60pFHC2000:CTRIM808-BCCT0
1100HC2000:0204_7R36
1100HC2000:PIS2816L1
1100p/180pHC2000:C025-030X050C14
110kHC2000:SIL9RP1
110k/470kHC2000:0204_7R21
110p/15pHC2000:C025-030X050C7
110uHC2000:C025-024X024C15
11488HC2000:DIL14UA10
11489HC2000:DIL14UF12
1150pHC2000:C025-030X050C6
117,734HC2000:HC18U-HQ1
11N4148HC2000:DO35-7DX1
11k1HC2000:0204_7R70
11k5HC2000:0204_7R32
11k8/1k6HC2000:0204_7R66
1220HC2000:0204_7R23
1220pHC2000:C025-030X050C9
1220p/-HC2000:C025-030X050C8
1240/270HC2000:0204_7R31
1270pHC2000:C025-030X050C5
127128P/-HC2000:DIL28-6UE8A0
127C256/27C512HC2000:DIL28UB6
127kHC2000:0204_7R59
12M2/2MHC2000:0204_7R6
12N2369/2N2368HC2000:TO18T2
12N2369/BC108AHC2000:TO18T3
12k7HC2000:0204_7R69
13,3uF/4,7uFHC2000:C025-024X044C4
1430HC2000:0204_7R24
147HC2000:0204_7R27A0
147kHC2000:0204_7R10
14n7HC2000:C025-030X050C2
15k6/5k1HC2000:0204_7R68
1680HC2000:0204_7R35
174LS05HC2000:DIL14UG8
174LS06HC2000:DIL14UA11
174LS125HC2000:DIL14UC9
174LS14HC2000:DIL14UD11
174LS153HC2000:DIL16UB12

The 228 most common of 259 parts.

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Questions

How big is the HC2000 PCB?

It measures 478 × 183 mm and has 2 copper layers, 1.6 mm thick.

What parts does the HC2000 use?

259 parts, built around the 74LS125DC, 74LS74PC, 74LS161DC and 74LS257PC. 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 HC2000 KiCad files?

From the badrianiulian/HC2000 repository on GitHub, at the commit this page was made from: the board is HC2000.kicad_pcb and its schematic HC2000.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the HC2000 design in my own project?

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