SE555DR

Programmable Timers And Oscillators Overview

The SE555DR is a standard timer integrated circuit manufactured by Texas Instruments, belonging to the SE555 series. It features a single timer configuration with TTL-compatible output in an SOIC-8 surface-mount package. The device operates within a supply voltage range of 4.5 V to 18 V and supports a wide operating temperature range from -55°C to +125°C. Key electrical specifications include a high-level output current of 200 mA, a low-level output current of -200 mA, and a typical operating supply current of 4 mA.

Programmable Timers And Oscillators Feature Summary

• Single timer configuration with TTL output compatibility
• Wide operating temperature range: -55°C to +125°C
• High drive capability with ±200 mA output currents
• SOIC-8 surface-mount packaging

Programmable Timers And Oscillators Applications

• Precision timing circuits
• Pulse generation applications
• Time delay generation

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix (e.g., DRG4) against the datasheet to confirm RoHS compliance status, as suffixes may indicate environmental variations without changing function. Confirm the manufacturer source directly from official component documents rather than distributor hosting pages. Check for any Product Change Notices (PCN) related to material or design updates before procurement.

Programmable Timers And Oscillators Selection Notes

Select the SE555DR when a military-grade or extended temperature range (-55°C to +125°C) is required compared to commercial variants like the NE555. Ensure the application demands the specific 4.5V to 18V supply range and TTL output levels. Verify that the SOIC-8 package dimensions fit the PCB layout constraints.

Programmable Timers And Oscillators Part Context

The SE555DR is part of the SE555 family, which typically denotes enhanced or specific performance variants of the classic 555 timer architecture. It serves as a direct replacement for through-hole or other surface-mount 555 timers where extended temperature stability and high output drive are necessary. The 'DR' suffix specifically identifies the SOIC-8 tape and reel packaging format.

Programmable Timers And Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.