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Z80C CTC Counter/Timer Channel CMOS Version DIP-28

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  • Jameco Part no.: 2288015
  • Manufacturer: STMicroelectronics
  • Manufacturer no.: Z84C30AB6
  • HTS code: 8542218088
    • Electronics Parts Locator
  • This item is discontinued and is not
    recommended for new designs.
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Z80C CTC Counter/Timer Channel CMOS Version DIP-28

The Z80C CTC four-channel counter/timer can be programmed by system software for a broad range of counting and timing applications. The four independently programmable channels of the CTC satisfy common microcomputer system requirements for event counting, interrupt and interval timing, and general clock rate generation.


  • Four independently programmable counter/timer channels, each with a readable downcounter and a selectable 16 or 256 prescaler. Down-counters are reloaded automatically at zero count
  • Three channels have zero count/timeout outputs capable of driving Darlington transistors
  • Selectable positive or negative trigger initiates timer operation
  • Standard Z80C family daisy-chain interrupt structure provides fully-vectored, prioritized interrupts without external logic. The CTC may also be used as an interrupt controller
  • Single 5V power supply

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Specification Value
Supplier PackageDIP-28

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