Revision History
Revision 0.03.00: Updated 315-5235 pin-out to include RESET pin. Updated the 315-5365 pin-out diagram with information about the CEx inputs. Color-coded the pins on each pin-out diagram. Added description of the 351-5365 chip. Added Casino Games to 315-5365 sightings list. Submitted to S8-Dev (www.smspower.org/dev) January 27, 2002.Revision 0.02.00: Updated 315-5235 pin-out to include descriptions for pins 24, 29, and 30. Added R-Type to 315-5235 sightings. Thanks go to Leonard Silva de Oliveira. Submitted to S8-Dev (www.smspower.org/dev) August 29, 2000.
Revision 0.01.00: Added 315-5365 pin-out, corrected name of 315-5265 to 315-5365, and updated "sightings" tables. Submitted to S8-Dev (www.smspower.org/dev) July 11, 2000.
Revision 0.00.00: First version. Submitted to S8-Dev (www.smspower.org/dev) June 17, 2000.
Cartridges and Paging Chips
Cartridges that tend to contain paging chips use a white-colored circuit boards. This information can be used when determining which game cartridges contain a paging chip without actually having to open the cartridge -- simply look at the color of the card edge at the bottom of the cartridge. However, a white-colored board is not a guarantee that a cartridge contains a paging chip, plenty of examples to the contrary have been found. Conversely, a brown-colored board also does not imply that a paging chip is not present. Certain games using battery backup RAM contain a paging chips and use a brown circuit board. The "sightings" charts below indicate which color circuit board a cartridge contained. So, for example, if you have The Ninja with a white circuit board, chances are good that the cartridge contains a 315-5208 paging chip.
Examples of white and brown circuit boards (Courtesy Mike G.)
The 315-5208 Paging Chip
The 315-5208 paging chip can handle up to 8 16KByte memory pages, making it suitable for use with 1 Megabit games. The commercial SMS cartridges that use the 315-5208 for paging use a ROM chip with model number 831000. The 831000 is a 28-pin 256K*8 ROM chip.
Connect pins 1, 31, and 32 of the 27010 EPROM to +5v, and pin 24 to GROUND.
If you would like to report a 315-5208 sighting, please contact Eric Quinn
at e-quinn@elnet.com or post a message
on S8-Dev Forum.
The following diagram shows the suspected pin-out of the 315-5235.
If you would like to report a 315-5235 sighting, please contact Eric Quinn
at e-quinn@elnet.com or post a message
on S8-Dev Forum.
If you would like to report a 315-5365 sighting, please contact Eric Quinn
at e-quinn@elnet.com or post a message
on S8-Dev Forum.
Replacing a #831000 ROM with an #27010 EPROM
A 28-pin #831000 ROM can be replaced with a #27010 32-pin 1 Megabit EPROM. The following
table indicates the correct pin mapping.
831000 ROM Pin 27010 EPROM Pin
1-14 3-16
15-21 17-23
23-28 25-30
22 2
Mike G.'s Megabit EPROM Cartridge using 315-5208 Paging Chip (Courtesy Mike G.)
315-5208 Sightings
The following table lists the names of commercial game cartridges that are known to use the
315-5208 paging chip. However, the list below does not guarantee that every
cartridge of a particular title contains a 315-5208 chip. The list only indicates that at
least one example of a particular title using a 315-5208 has been found. 315-5208 Sightings
Game Size Circuit Board Color
Action Fighter 1 Megabit White
Alex Kidd in Miracle World 1 Megabit White
Astro Warrior 1 Megabit White
Gangster Town 1 Megabit White
Ghostbusters 1 Megabit Brown
Hang-On/Astro Warrior 1 Megabit ??
The Ninja 1 Megabit White
World Grand Prix 1 Megabit White
The 315-5235 Paging Chip
Currently, it is believed that the 315-5235 paging chip can handle up to 32
16KByte memory pages, making it suitable for use with 1, 2, and 4 Megabit
games. Additionally, this chip is believed to contain the logic necessary
for handling battery-backup RAM. The fact that this chip is known
to appear in a Phantasy Star (4 Megabit Plus) supports these two beliefs.
Three different sized carts all using 315-5235
315-5235 Sightings
The following table lists the names of commercial game cartridges that are known to use the
315-5235 paging chip. However, the list below does not guarantee that every
cartridge of a particular title contains a 315-5235 chip. The list only indicates that at
least one example of a particular title using a 315-5235 has been found. 315-5235 Sightings
Game Size Circuit Board Color
After Burner 4 Megabit Brown
Altered Beast 2 Megabit ??
Galaxy Force 4 Megabit Brown
Golden Axe 4 Megabit Brown
Mercs 4 Megabit Brown
Monopoly 1 Megabit, Battery Back-up RAM White
Penguin Land 1 Megabit, Battery Back-up RAM White
Phantasy Star 4 Megabit, Battery Back-up RAM Brown
R-Type 4 Megabit ??
Rastan 2 Megabit Brown
Sagaia 2 Megabit Brown
Space Gun 4 Megabit ??
Space Harrier 2 Megabit White
Spellcaster 4 Megabit Brown
The 315-5365 Paging Chip
The 315-5365 can handle 32 x 16KB ROM pages, giving a total of 512KB addressable space. It supports paging in
frames 0 (cartridge address 0x400-0x3FFF), 1 (0x4000-0x7FFF), and 2 (0x8000-0xBFFF). It is unknown whether
this chip supports SRAM.
Example of board using the 315-5365, Bubble Bobble (Courtesy Mike G.)
315-5365 Sightings
The following table lists the names of commercial game cartridges that are known to use the
315-5365 paging chip. However, the list below does not guarantee that every
cartridge of a particular title contains a 315-5365 chip. The list only indicates that at
least one example of a particular title using a 315-5365 has been found. 315-5365 Sightings
Game Size Circuit Board Color
Bubble Bobble 2 Megabit Brown
Casino Games 2 Megabit Brown
Chase HQ 2 Megabit Brown
Operation Wolf 2 Megabit Brown
Wonder Boy III: The Dragon's Trap 2 Megabit Brown