LM555J/883

Programmable Timers And Oscillators Overview

The LM555J/883 is a CMOS timer integrated circuit manufactured by Texas Instruments, designed for military and aerospace applications under the MIL-PRF-38534 standard (indicated by the /883 suffix). It operates within a supply voltage range of 4.5 V to 16 V and supports timing durations from microseconds to hours. The device features TTL-compatible outputs capable of sourcing or sinking up to 200 mA. It is housed in an 8-pin ceramic dual in-line package (DIP) suitable for high-reliability environments.

Programmable Timers And Oscillators Feature Summary

• CMOS technology ensuring low power consumption
• TTL-compatible output with 200 mA drive capability
• Military-grade reliability per MIL-PRF-38534 specifications
• Wide supply voltage operation: 4.5 V to 16 V

Programmable Timers And Oscillators Applications

• Precision timing circuits in defense systems
• Pulse generation for aerospace telemetry
• Logic timing devices in ruggedized electronics
• Frequency division in critical communication equipment

Programmable Timers And Oscillators Procurement Notes

Verify that the component carries the official /883 designation confirming compliance with MIL-PRF-38534 standards. Ensure documentation includes a Certificate of Compliance (CoC) and traceability records required for military procurement. Confirm RoHS status as non-compliant due to lead content typical of hermetic ceramic packages.

Programmable Timers And Oscillators Selection Notes

Select this part when hermetic sealing and radiation hardness are required. Compare against commercial LM555 variants if environmental constraints allow lower cost options. Verify package integrity and pinout compatibility with existing DIP-8 footprints during design integration.

Programmable Timers And Oscillators Part Context

This component belongs to the 555 timer family, a legacy analog-digital hybrid circuit widely used for oscillation and timing. The J suffix denotes a military-grade ceramic DIP package, while /883 indicates qualification under federal microcircuit standards. It serves as a direct replacement for SE555J/883 in legacy designs.

Programmable Timers And Oscillators Replacement Considerations

Direct equivalents include SE555J/883 and NE555J/883. Commercial alternatives like LM555CM lack hermeticity and military screening. Verify pin compatibility and thermal performance before substituting non-hermetic packages.