NA556 Datasheet - Texas Instruments

NA556 Dual Precision Timers

The Nx556 and Sx556 devices provide two independent timing circuits of the NA555, NE555, SA555, or SE555 type in each package. These circuits operate in an astable or monostable mode with external resistor-capacitor (RC) timing control. The basic timing provided by the RC time constant is controlle.

NA556 Features

* Two precision timing circuits per package

* Astable or monostable operation

* TTL-compatible output can sink or source up to 200mA

* Active pullup or pulldown 2 Applications

* Precision timers from microseconds to hours

* Pulse-shaping circuits

NA556-etcTI.pdf