LM556

DESCRIPTION

The UTC LM556 dual monolithic circuit is a highly stable 

controller capable of producing accurate delays or oscillation. 

The UTC LM556 is the dual of UTC NE555; timing is provided 

an external resistor and capacitor for each function. The two 

timers operate independently of each other, sharing only VCC

and GND. The circuits may be triggered and reset on falling 

wave forms. The output structures may sink or source 200mA.

FEATURES 

*High Current Driver Capability(=200mA) 

*Adjustable Duty Cycle 

*Timing From μSec to Hours 

*Temperature Stability of 0.005%/°C 

*TTL Compatible 

*Operates in Both Astable and Monostable Modes 

规格书LM556