Mega Drive

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The Sega Mega Drive, known as the Genesis in North America, is a 16-bit home video game console developed and sold by Sega. The Mega Drive was Sega's third console and the successor to the Master System. Sega released it as the Mega Drive in Japan in 1988, followed by North America as the Genesis in 1989. In 1990, it was distributed as the Mega Drive by Virgin Mastertronic in Europe, Ozisoft in Australasia, and Tec Toy in Brazil.

Models

Model Image CPU Co-processor RAM ROM Graphics Display Sound Connectivity
Mega Drive Mega Drive 16-bit Motorola 68000 running at 7.61 MHz Zilog Z80 64 KB 1 MB VDP (Video Display Processor) dedicated video display processor for playfield and sprite control, 3 Planes, 2 scrolling playfields, 1 sprite plane. 64 KB VRAM. Progressive: 320x224, 256x224 (NTSC) or 320x240, 256x240 (PAL) pixels, 64 colors on-screen from a 512 colour palette.

Interlaced: 320x448, 256x448 (NTSC) or 320x480, 256x480 (PAL)

Texas Instruments SN76489 chip, Yamaha YM2612 FM chip. 6 stereo sound channels. 8 KB sound ROM. DE-9 controller port
Mega Drive 2 Mega Drive 2

Revisions

Repairs

Mods

Flash carts

Mega Everdrive

This flash cart comes in 3 versions; X3, X5, and X7.

http://www.retrotowers.co.uk/flash-carts/everdrives (UK)

https://stoneagegamer.com/flash/genesis/carts/ (US)