IN555, IN556, IN558 CMOS GENERAL PURPOSE TIMER General Description The IN555, IN556, IN558 are CMOS RC timers providing significantly improved performance over the standard SE/NE555/556/558 and 355 timers, while at the same time being direct replacements for those devices in most applications.
Improved parameters include low supply current, wide operating supply voltage range, low THRESHOLD, TRIGGER, and RESET currents, no crowbarring of the supply current during output transitions, higher frequency performance and no requirement to decouple CONTROL VOLTAGE for stable operation.
Specifically, the IN555/556/558 are stable controllers capable of producing accurate time delays of frequencies.
...

Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)