The ALD7555 from Advance Linear Devices is a high-performance monolithic analog RC timing circuit  that redefines accuracy, stability, and efficiency. Operating at 2.5MHz typical oscillation under 5V, this timer excels in high-speed applications. It offers the benefits of high input impedance, allowing smaller timing capacitors and a longer timing cycle. It provides high speed, low power dissipation for battery-operated environments, and reduced supply current spikes, enabling the use of smaller and lower-cost decoupling capacitors.

Its increased 80mA discharge sinking current at 5V allows users to utilize this output as a driver for various applications, eliminating the need for additional output drivers or buffer circuitry. With a wide operating supply voltage range of 2V to 10V, the timer seamlessly integrates into various voltage environments. Functionally equivalent to popular alternatives like NE555, SE555, TLC555, and ICM7555, the ALD7555 ensures a smooth transition for existing designs. The timing circuit delivers precision sequential timing in both monostable and astable modes, enabling accurate time delays and oscillations.

Key features:

Improved accuracy and temperature stability

High speed operation -- 2.5MHz typical oscillation at 5V

High Discharge Sinking Current of 80mA at 5V

Guaranteed low operating supply voltage of 2V to 10V

Functional equivalent to and same pin-out as NE555/NE556, SE555, TLC555, ICM7555/ICM7556

Low supply current, typically 50µA

Extremely low trigger, threshold and reset currents, with a typical value of 10pA

Operates in both monostable and astable modes

Low supply current spikes

Rail to rail output

Pricing and Availability:

Available now at Digi-Key and Mouser in 8-pin SOIC (ALD7555SAL) and 8-pin Plastic DIP (ALD7555PAL) packages starting at $1.95 each per 100.