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ACIA USB

Fred72z·ORIC·BUS_ORIC/Extensions/Communication_ACIA_USB/Kicad5/ACIA_USB.kicad_pcb

ACIA USB PCB layout, top view — open source board by Fred72z
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About the ACIA USB PCB

ACIA USB is an open source PCB design by Fred72z, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 76.2 × 49.5 mm, with 18 components from 16 distinct parts.

Other key parts include the 65C51, 74LS04, 74LS30 and CH340G. By type, the board carries 8 capacitors, 4 ICs, 2 crystals, 2 connectors, 1 diode and 1 resistor.

From the project

Extensions pour ORIC1-ATMOS

Cette platine se branche sur la platine d'extension de bus et permet d'ajouter une liaison USB (émulation port série de 50 à 19200 bauds) à l'ORIC. Elle occupe les mêmes adresses que l'ACIA du telestrat soit 31C-31F

10 POKE#31F,30:POKE#31E,11 15 REM EMISSION 20 A$="HELLO" 30 FOR I=1 TO LEN(A$) 40 IF (PEEK(#31D) AND 16)<>16 THEN 40 50 POKE #31C,ASC(MID$(A$,I,1)) 60 NEXT 70 REM RECEPTION 80 IF (PEEK(#31D) AND 8)<>8 THEN 80 90 PRINT CHR$(PEEK(#31C)); 100 GOTO 80

ACIA USB, from the project README
From the project README

Main components on the ACIA USB

65C5174LS0474LS30CH340G

ACIA USB bill of materials (BOM)

18 components, 16 distinct parts.

QtyPartRefs
1
65C51
U1
1
74LS04
U2
1
74LS30
U3
1
CH340G
U4
1
1.8432MHz
Y1
1
12MHz
Y2
1
SLOT1
J1
1
USB_B
J2
1
1N4148
D1
1
47µF
C1
2
100nF
C2, C3
2
22pF
C4, C6
1
100nF
C5
1
100nF
C7
1
22pF
C8
1
1M
R1

ACIA USB design files

The KiCad project lives in the Fred72z/ORIC repository on GitHub; these links point at the commit this page was built from.

ACIA USB: common questions

How big is the ACIA USB PCB?

The ACIA USB measures 76.2 × 49.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ACIA USB?

18 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the ACIA USB design files?

From the Fred72z/ORIC repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the ACIA USB design in my own project?

Yes, under the terms of its GPL-2.0 license, which Fred72z chose for the repository.

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