TS555IDTTR

Overview

The TS555IDTTR is a low-power single CMOS timer manufactured by STMicroelectronics, housed in an SOIC-8 surface-mount package. It operates within a supply voltage range of 2 V to 16 V and supports a maximum astable frequency of 2.7 MHz. The device draws a typical supply current of 110 µA at 5 V and features a propagation delay of up to 100 ns. Designed for industrial reliability, it functions across a temperature range of -40°C to +125°C with high input impedance (10^12 Ω) and output compatibility with TTL and CMOS logic.

Feature Summary

• Low power consumption: 110 µA typ at VCC = 5 V
• High frequency operation up to 2.7 MHz
• Extended industrial temperature range (-40°C to +125°C)
• Pin-to-pin compatible with bipolar NE555

Applications

• Timing delays in monostable mode
• Programmable oscillations in astable mode
• Frequency generation circuits

Procurement Notes

Verify the specific suffix 'DTTR' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official datasheets or environmental files provided by STMicroelectronics. Ensure the SOIC-8 footprint matches the target PCB design constraints.

Selection Notes

Select this component for applications requiring reduced supply current spikes compared to bipolar timers. The high input impedance allows for minimized timing capacitors. Verify that the required operating voltage falls between 2 V and 16 V and that the -40°C to +125°C temperature rating meets environmental specifications.

Part Context

This part belongs to the TS555 series of single-channel CMOS timers. It serves as a low-power alternative to standard bipolar timers like the NE555, offering improved stability and lower consumption while maintaining functional compatibility.

Replacement Considerations

The TS555CDT is listed as obsolete. Check for other active variants in the TS555 family such as TS555IDT or TS555CN if pinout and package requirements allow.