STMicroelectronics

SA556DT  

Programmable Timers and Oscillators

SA556DT Description

The SA556DT is a dual 555-type timer/oscillator IC manufactured by STMicroelectronics, designed for a wide range of timing and oscillation applications. This device is housed in a 14-pin SOIC package and is suitable for surface mount applications. The SA556DT operates within a supply voltage range of 4.5V to 16V and draws a supply current of 20 mA. It is capable of generating frequencies up to 500kHz, making it ideal for various timing and clocking requirements.

SA556DT Features

• Dual Functionality: The SA556DT integrates two independent 555-type timer/oscillator circuits, offering enhanced flexibility and functionality in a single package.
• Wide Operating Voltage Range: With a supply voltage range of 4.5V to 16V, the SA556DT can be used in a variety of power supply environments, ensuring compatibility with different voltage levels.
• High Frequency Capability: The device can operate at frequencies up to 500kHz, providing precise timing and oscillation for demanding applications.
• Low Supply Current: Drawing only 20 mA, the SA556DT is energy-efficient, making it suitable for battery-operated and low-power systems.
• Surface Mount Technology (SMT): The SA556DT is designed for surface mount applications, facilitating automated assembly processes and reducing the overall footprint on the PCB.
• Compliance and Safety: The SA556DT is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the SA556DT is highly resistant to moisture, making it suitable for storage and use in various environmental conditions.

SA556DT Applications

The SA556DT is ideal for a wide range of applications due to its dual functionality, high-frequency capability, and wide operating voltage range. Some specific use cases include:

• Timing Circuits: The SA556DT can be used to create precise timing circuits for applications such as pulse generation, delay generation, and timing intervals.
• Oscillator Circuits: Its ability to generate frequencies up to 500kHz makes it suitable for oscillator circuits in communication systems, signal processing, and clock generation.
• Battery-Operated Devices: The low supply current of 20 mA makes the SA556DT an excellent choice for battery-operated devices where power efficiency is critical.
• Automotive and Industrial Applications: The wide operating voltage range and moisture sensitivity level of 1 (Unlimited) make the SA556DT suitable for harsh environments commonly found in automotive and industrial applications.
• Consumer Electronics: The SA556DT can be used in consumer electronics for timing and oscillation functions, such as in digital clocks, timers, and other devices requiring precise timing.

Conclusion of SA556DT

The SA556DT from STMicroelectronics is a versatile dual 555-type timer/oscillator IC that offers a wide range of technical specifications and performance benefits. Its dual functionality, wide operating voltage range, and high-frequency capability make it suitable for a variety of applications, from timing circuits to oscillator circuits. The SA556DT's low supply current, surface mount technology, and compliance with environmental and safety standards further enhance its appeal. Despite its obsolete status, the SA556DT remains a reliable and efficient choice for applications requiring precise timing and oscillation.

SA556DT Documents

Download datasheets and manufacturer documentation for SA556DT