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74HC5555 Datasheet Programmable Delay Timer

Manufacturer: Nexperia

Overview: 74HC5555 Programmable delay timer with oscillator Rev. 4 — 5 July 2018 Product data sheet 1.

General Description

The 74HC5555 is a precision programmable delay timer which consist of: • 24-stage binary counter • integrated oscillator (using external timing ponents) • retriggerable/non-retriggerable monostable • automatic power-ON reset • output control logic • oscillator control logic • overriding asynchronous master reset (MR).

The 74HC5555 inputs include clamp diodes.

This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Key Features

  • Supply voltage range from 2.0 V to 6.0 V.
  • CMOS input levels.
  • Positive and negative edge triggered.
  • Retriggerable or non-retriggerable.
  • Programmable delay:.
  • minimum: 100 ns.
  • maximum: depends on input frequency and division ratio.
  • Divide-by range of 2 to 224.
  • Direct reset terminates output pulse.
  • Very low power consumption in triggered start mode.
  • 3 oscillator operating modes:.
  • RC oscillato.

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74HC5555 Distributor