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).
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.