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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 components) • 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.
2 Features and benefits
• Supply voltage range from 2.0 V to 6.