IC - 28 pin DIP sound generator w/IO

Programmable Sound Generator, 28 pin DIP made by General Instrument and MicroChip. Used in several 1980's vintage machines.

The AY-3-8912 is a LSI circuit that produces a wide variety of sounds under software control. Requirements to operate this programmable sound generator include, a single 5.0V power supply, A TTL compatible clock , and microprocessor controller.

DC CHARACTERISTICS:

• Input Voltage Levels
• - Low Level: 0.7V max.
• - High level: 2.2V min.
• Output Voltage Levels (except Analog Channel Outputs)
• - Low Level: 0.4V max.
• - High Level: 2.4V min.
• Analog Channel Outputs: 2000uA max.
• Power Supply Current: 85mA max.

  AC CHARACTERISTICS:

  • Clock Input
  • - Frequency: 2.5MHz max.
  • - Rise Time: 50ns max.
  • - Fall Time: 50ns max.
  • - Duty Cycle: 40% min.
  • Reset
  • - Pulse Width: 5us min.
  • - Bus Control Delay Time: 100ns min.

    Reference:

    • AY-3-8912
    • AY-3-8912A
    • AY38912
    • 0066-289BX-XXSX