LM555CMX/NOPB

Programmable Timers And Oscillators Overview

The LM555CMX/NOPB is a standard bipolar timer IC from Texas Instruments, housed in an SOIC-8 surface-mount package. It operates on a supply voltage range of 4.5 V to 16 V with a typical operating current of 3 mA. The device features TTL-compatible outputs capable of sourcing or sinking up to 200 mA. It supports frequencies up to 100 kHz and functions within a commercial temperature range of 0°C to +70°C. The component includes one internal timer circuit and dissipates up to 1.18 W of power.

Programmable Timers And Oscillators Feature Summary

• Standard bipolar 555 timer architecture with TTL-compatible output
• High drive capability with 200 mA source/sink output current
• Operates on supply voltages from 4.5 V to 16 V
• Available in compact SOIC-8 surface-mount packaging

Programmable Timers And Oscillators Applications

• Precision timing circuits for pulse generation
• Sequential timing and delay applications
• Time delay oscillators and frequency dividers
• Logic clock pulses and pulse width modulation

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and electrical tolerances. Confirm RoHS compliance status through the latest datasheet revision. Ensure the SOIC-8 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Programmable Timers And Oscillators Selection Notes

Select this component when high output drive current is required compared to CMOS alternatives. It is suitable for applications requiring operation between 4.5 V and 16 V. Consider the commercial temperature range limits for environmental suitability. Compare power dissipation specifications against thermal management capabilities in the final design.

Programmable Timers And Oscillators Part Context

This part belongs to the LM555 family of single timers, representing the industry-standard bipolar version. It serves as a direct replacement for legacy NE555 designs while offering surface-mount convenience. The NOPB suffix indicates lead-free construction compliant with environmental directives.

Programmable Timers And Oscillators Replacement Considerations

LM555CMX is the predecessor without the NOPB suffix. NE555DR is listed as a parameter-equivalent alternative.