G-1007 — Congo Bongo

The board inside Congo Bongo, photographed front and back — as sold by Sega.

This Cartridge PCB uses only one ROM from HITACHI named HN613256P. This chip is a CMOS Mask Programmable Read Only Memory, designed especially for use in a bus-organized systems.

Its built in memory matrix has 32,768 x 8bit word, which means 32 Kbytes of data available. It has an address decoder which interfaces directly to the computer through cartridge connector and a 3-State Output Buffer for data output which is driven by two signals by the computer.

The Congo Bongo cartridge, as sold by Sega — Congo Bongo as it was sold — Sega

Here there are the graphic tiles relative to different game stages/screens stored on ROM:

Graphics stored in the ROM of Congo Bongo

Datasheets

The chips on these boards, as their makers described them.

HN613256P