MOS Technology 6502 - Variations and Derivatives

Variations and Derivatives

There were several variants of the NMOS 6502 produced:

  • The MOS Technology 6507 had reduced memory addressing capability and no interrupts.
  • The MOS Technology 6510 has a built-in 6-bit programmable input/output port.
  • The Ricoh 2A03 was a 6502 variant lacking the BCD Mode, used in the Nintendo Entertainment System.
  • The 6502C (Sally) was a customized 6502 chip used in later Atari 8-bit computers. It has a HALT signal on pin 35 and a second R/W on pin 36 (these pin are N/C on a standard 6502).

Read more about this topic:  MOS Technology 6502

Famous quotes containing the word variations:

    “I may be able to spot arrowheads on the desert but a refrigerator is a jungle in which I am easily lost. My wife, however, will unerringly point out that the cheese or the leftover roast is hiding right in front of my eyes. Hundreds of such experiences convince me that men and women often inhabit quite different visual worlds. These are differences which cannot be attributed to variations in visual acuity. Man and women simply have learned to use their eyes in very different ways.”
    —Edward T. Hall (b. 1914)