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Saturday, 28 March 2015 09:35

IBM 72X8287 (VGA)

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IBM 72X8287 (VGA)

Onboard IBM VGA chip used in PS/2 model 80 machines.

 

Info by equari : used on IBM 8580 Type 1 and 2 Planar boards with 386 cpu's. Chip is designated as Integrated 16-bit VGA display adapter (256 Kb, max. 320x200, 256 colours or 640x480, 16 colours).
Inmos IMSG171P-35 is 35MHz Ramdac designed to be compactible with IBM PS/2 VGA graphics systems. Datasheet is here.

Vlask's chip:

IBM 72X8287
IBM 72X8287
IBM 72X8287
 
IBM 72X8287 output
IBM 72X8287 output
IBM 72X8287 output

Additional Info

  • Made by: IBM
  • Bus: Integrated
  • Memory Size: 256kB
  • Max Memory Size: 256kB
  • Memory Type: DRAM
  • Year: 1987
  • Announce Date: Thursday, 02 April 1987
  • Card Type: VGA
  • Manufacturer: IBM
  • Owned by: Vlask (chip/not working)
  • Outputs: 15 pin D‐sub
  • Core Clock (MHz): 28
  • Sold by: IBM
  • Ramdac (MHz): 35
  • Press info: ardent-tool
  • Info: 8580 Type 1 Planar
  • Info: 8580 Type 2 Planar
  • Info: computinghistory
  • Documentation: Board schematics
Read 13913 times Last modified on Tuesday, 30 May 2023 08:39
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