Download LM556 Datasheet PDF
Unisonic Technologies
LM556
LM556 is DUAL TIMER manufactured by Unisonic Technologies.
UNISONIC TECHNOLOGIES CO., LTD LINEAR INTEGRATED CIRCUIT DUAL TIMER - 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 patible - Operates in Both Astable...
LM556 reference image

Representative LM556 image (package may vary by manufacturer)