Programmable Timer Module (PTM) DIP-28

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$9.95 ea

26 In Stock

  • Jameco Part no.: 2302623
  • Manufacturer: TI
  • Manufacturer no.: MC68B40S
  • HTS code: 8541500040
  • Web Exclusive
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Programmable Timer Module (PTM) DIP-28

Designed to provide variable system time intervals, the MC6840 has three 16-bit binary counters, three corresponding control registers, and a status register.


  • Operates from a single 5V power supply
  • Fully TTL-compatible
  • Single system clock required (enable)
  • Selectable pre-scaler on timer 3 capable of 8 MHz
  • Programmable interrupts (IRQ) output to MPU
  • Readable down counter indicated counts to go until time-out
  • Selectable gating for frequency or pulse-width comparison
  • Three asynchronous external clock and gate trigger inputs internally synchronized
  • Three masked outputs
  • DIP-28

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