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Saverio Russo

ITALY • + Follow Edit Project

SnCMuseum
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Saverio Russo

ITALY
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2

SG-1000 CART 48K 27C512.png

Components

	27C512	x 1
	SN74HCT08N TI	x 1

Description

SC-3000 GAME CART 48K - EPROM 64K

This is a PCB specifically made to generate cartridges for the Sega SC-3000, SG-1000 and I believe also the Sega Mark III and Sega Master System (Japanese). It uses the standard 27C512 64KB EPROM (only first 48KB are used). The 2x 0.1uF disc capacitors are the standard 25% tolerance 16V (even 25V) one used in almost all electronics of the time. GAME MEMORY MAP is $0000-$BFFF with 1 EPROM. The 74HCT08 AND port IC is used as negative OR to merge the /EXM2 ($0000-$7FFF) and the /EXM1 ($8000-$BFFF) signals.

Apr 12,2025

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SC-3000 GAME CART 48K - EPROM 64K

A Sega SC-3000 / SG-1000 GAME CARTRIDGE using a 64KB EPROM to have the GAME data in $0000-$BFFF 48KB range.

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Published: Apr 12,2025

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Under the Attribution-ShareAlike (CC BY-SA) License.

PCB
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Topic

DIY Electronics

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SnCMuseum Apr 13,2025
Saverio Russo Apr 12,2025

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SC-3000 GAME CART 48K - NOR FLASH 128K PLCC-32 This is a PCB specifically made to generate cartridges for the Sega SC-3000, SG-1000 and I believe a...
SC-3000 GAME CART 48K - EPROM 64K This is a PCB specifically made to generate cartridges for the Sega SC-3000, SG-1000 and I believe a...
SC-3000 GAME CART 32-48KB SC-3000 GAME CART 32K-48KThis is a PCB specifically made to generate cartridges for the Sega SC-3000...
SC-3000 GAME CART 32K This is a PCB specifically made to generate cartridges for the Sega SC-3000, SG-1000 and I believe a...
SC-3000 Sega Basic Level IIIA Sega Basic Level IIIA / Game cartridge for Sega SC-3000. It allows 2 rom layout. Now SRAM is optiona...

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