TS555IDT

Overview

The TS555IDT is a single-channel CMOS timer from STMicroelectronics, designed as a low-power alternative to bipolar NE555 timers. It operates within a voltage range of +2V to +16V and features a typical supply current of 110 µA at 5V. The device supports high-frequency operation up to 2.7 MHz with accurate timing in both monostable and astable modes. It utilizes an SOIC-8 surface-mount package and offers extended industrial temperature performance.

Feature Summary

• Low power consumption: 110 µA typ at VCC = 5V
• High maximum astable frequency of 2.7 MHz
• Pin-to-pin functionally-compatible with bipolar NE555
• Wide voltage range: +2V to +16V

Applications

• Time delay generation
• Programmable oscillation
• Frequency division
• Pulse width modulation

Procurement Notes

Verify the specific suffix 'DT' against the manufacturer's official datasheet to confirm the exact package variant and temperature grade. Confirm current production status, as listings may indicate end-of-life or limited availability for this specific part number.

Selection Notes

Select the TS555IDT when low power consumption and high-frequency stability are required compared to standard bipolar timers. Ensure the application environment stays within the specified operating temperature range for the 'I' grade and verify that the SOIC-8 footprint matches the PCB design constraints.

Part Context

The TS555IDT belongs to the TS555 family of single CMOS timers. This series provides pin-compatible replacements for legacy bipolar timers while offering significantly lower power usage and higher speed capabilities suitable for modern low-voltage digital systems.

Replacement Considerations

The TS555CDT is a similar single-channel timer in the same package but typically rated for commercial temperature ranges rather than industrial. Verify thermal requirements before substitution.