XR-L556 Datasheet - Exar

XR-L556 Micropower Dual Timer

The XR-L556 dual timer contains two independent micropower timer sections on a monolithic chip. It is a direct replacement for the conventional 556-type dual timers, for applications requiring very low power dissipation. Each section of the XR-L556 dual timer is equivalent to Exar's XR-L555 micropo.

XR-L556 Features

* as timing accuracy and stability. At 5 volt operation, typical power dissipation of the dual-timer circuit is less than 2 mW; and it can operate in excess of 500 hours with only two 300 mA-Hr NiCd batteries. The two timer sections of the circuit have separate controls and outputs, but share common

XR-L556-Exar.pdf