Part 74HC5555
Description Programmable delay timer
Category Timer
Manufacturer Philips Semiconductors
Size 142.57 KB
Philips Semiconductors
74HC5555

Overview

  • 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 oscillator - Crystal oscillator - External oscillator
  • Device is unaffected by variations in temperature and VCC when using an external oscillator
  • Automatic power-ON reset
  • Schmitt trigger action on both trigger inputs