Grzegorz GienekP

POLAND • + Follow

lmasko

POLAND
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1

Components

	M29F160FT55N3E2 Alliance Memory	x 2
	ATF22V10C-7PX Microchip	x 1
	ATF16V8B-15SU Microchip	x 1
	C0805C104M3RAC7210 KEMET	x 4
	MHSS1105 Apem	x 1

Tools, APP Software Used etc.

XCartFlasher

GienekP

Description

XCart - 4MB ATARI XE/XL Cartridge

XCart - ATARI XE/XL cartridge compatible with MegaCart 4MB (code 63) with small differences (*).

A bank-switched cartridge that occupies 16 KB of address space between

$8000 and $BFFF. It is controlled by a byte written to $D500-$D5FF. Values

0-254 select one of the first 255 banks, and the value 255 disables the

cartridge. Bank 255 is not available.

PCB compatible with SikorSoft enclosures.

Cartridge dedicated to "Street Fighter 2" ;)

(*) Differences:

Mega: write to $D500-$D51F; XCart: write to $D500-$D5FF

Mega: one memory chip; XCart: two memory chips (use XCart flasher)

Mega: read $D500-$D51F give last value; XCart read $FF

Mega: start bank 254, XCart start bank 0

Code

GALs JED files

GALs.7z

Schematic and Layout

Schematic file

XCart_SCH.pdf

Download BOM(Bill of materials)

Oct 11,2025

244 views

XCart - 4MB ATARI XE/XL Cartridge

2 Layers PCB 75.6 x 59.6 mm FR-4, 1.6 mm, 1, Immersion gold, Black Solder Mask, White silkscreen

ATARI XE/XL cartridge compatible witch MegaCart 4MB (code 63)

244

Published: Oct 11,2025

Standard PCB

BOM(Bill of materials)

Other files for Assembly

PCBWay Donate 10% cost To Author

File Last Updated: 2025/11/15 (GMT+8)

File update record

2025-11-1521:41:08

Other files for Assembly are updated.

2025-10-1803:16:06

Gerber file is updated.

2025-10-1502:12:44

Gerber file is updated.

2025-10-1314:20:39

Parts List (BOM) is updated.

2025-10-1313:57:37

Gerber file is updated.

2025-10-1114:54:43

Gerber file is updated.

2025-10-1114:04:51

Gerber file is updated.

2025-10-1106:20:15

Gerber file is updated.

2025-10-1105:40:06

Gerber file is updated.

2025-10-1105:30:35

Gerber file is updated.

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Topic

Computers & USB

Retro Stuffs

8th Design Contest-Electronic Project

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M29F160FT55N3E2

ATF22V10C-7PX

ATF16V8B-15SU

C0805C104M3RAC7210

MHSS1105

XCartFlasher

XCart - 4MB ATARI XE/XL Cartridge

XCart - 4MB ATARI XE/XL Cartridge

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