WDC 65C21 - Features of The W65C21S

Features of The W65C21S

  • Low power CMOS N-well silicon gate technology
  • High speed/Low power replacement for Motorola / Rockwell / AMI / *MOS Technology / MOSTEK / HITACHI / ST Microelectronics / GTE / CMD 6520, 6521, 6820, 6821 PIA’s
  • Two 8-bit bidirectional I/O ports with individual data direction control.
  • Automatic “Handshake” control of data transfers
  • Two interrupts (one for each port) with program control
  • Static to 14MHz operation, with high speed Port A, CA2 outputs.
  • Industrial temperature range
  • 40 Pin Plastic Dip and 44 Pin Plastic PLCC versions
  • 5 volt ± 10% supply requirements
  • Compatible with the 65xx and 68xx family of microprocessors

Read more about this topic:  WDC 65C21

Famous quotes containing the words features of and/or features:

    “It is a tribute to the peculiar horror of contemporary life that it makes the worst features of earlier times—the stupefaction of the masses, the obsessed and driven lives of the bourgeoisie—seem attractive by comparison.”
    —Christopher Lasch (b. 1932)

    “All visible objects, man, are but as pasteboard masks. But in each event—in the living act, the undoubted deed—there, some unknown but still reasoning thing puts forth the mouldings of its features from behind the unreasoning mask. If man will strike, strike through the mask!”
    —Herman Melville (1819–1891)