STMicroelectronics

TS556IDT

TS556IDT Description

The TS556IDT from STMicroelectronics is a dual 555-type timer/oscillator IC designed for precision timing and oscillation applications. Packaged in a 14-SOIC surface-mount form factor, it operates within a 2V to 16V supply range, making it versatile for both low-voltage and standard industrial applications. With a 2.7MHz frequency capability and a low 130 µA supply current, it balances performance and power efficiency. The device is RoHS3 compliant and REACH unaffected, ensuring adherence to environmental regulations. Though marked as obsolete, it remains a reliable choice for legacy designs requiring stable timing solutions.

TS556IDT Features

• Dual 555 Timer/Oscillator: Integrates two independent timers in a single package, saving board space.
• Wide Voltage Range (2V–16V): Supports diverse applications from battery-powered devices to industrial systems.
• Low Power Consumption (130 µA): Ideal for energy-sensitive designs.
• High Frequency (2.7MHz): Enables precision timing for fast-response circuits.
• Surface-Mount (14-SOIC): Compact and suitable for automated assembly.
• RoHS3/REACH Compliant: Meets stringent environmental standards.
• MSL 1 (Unlimited): No moisture sensitivity concerns during storage or handling.

TS556IDT Applications

The TS556IDT excels in:

• Pulse Generation: Precision timing for PWM, delay circuits, and clock signals.
• Industrial Controls: Motor drives, sensor interfacing, and automation timing.
• Consumer Electronics: LED flashers, tone generators, and power management.
• Medical Devices: Low-power timing for portable equipment.
• Legacy System Maintenance: Replacing older 555 timers in existing designs.

Conclusion of TS556IDT

The TS556IDT offers a robust, dual-timer solution with wide voltage compatibility, low power draw, and high-frequency performance. While obsolete, its reliability and compliance make it a pragmatic choice for engineers maintaining or designing systems requiring precise timing. Its compact SOIC package and dual functionality provide a space-efficient alternative to discrete timers, particularly in industrial and consumer applications.