LM555CN/NOPB

Programmable Timers And Oscillators Overview

The LM555CN/NOPB is a standard bipolar timer IC manufactured by Texas Instruments, belonging to the LM555 series. It operates within a supply voltage range of 4.5 V to 16 V and supports a maximum frequency of 100 kHz. The device draws a typical operating supply current of 3 mA and dissipates up to 1.18 W of power. Designed for industrial temperature ranges, it functions between 0°C and +70°C. The component is housed in an 8-pin PDIP package, providing through-hole mounting capabilities for general-purpose timing applications.

Programmable Timers And Oscillators Feature Summary

• Standard bipolar 555 timer architecture with TTL-compatible output
• Supply voltage range of 4.5 V to 16 V
• Maximum operating frequency of 100 kHz
• Industrial temperature range from 0°C to +70°C

Programmable Timers And Oscillators Applications

• Precision timing circuits
• Pulse generation
• Time delay generation
• Frequency division

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix 'CN' against the manufacturer's official datasheet to confirm the PDIP-8 package type and industrial temperature grade. Ensure the 'NOPB' designation aligns with current RoHS compliance requirements as defined in the latest Texas Instruments documentation before procurement.

Programmable Timers And Oscillators Selection Notes

Select this component when through-hole (PDIP) packaging is required for prototyping or legacy board designs. Compare the 3 mA supply current and 200 mA output drive capability against CMOS alternatives like the LMC555 if lower power consumption is a priority. Confirm that the 100 kHz frequency limit meets the application's timing speed requirements.

Programmable Timers And Oscillators Part Context

This part is a lead-free, halogen-free variant of the industry-standard LM555 timer. It maintains pin compatibility with previous generations while adhering to modern environmental standards. The CN suffix specifically denotes the plastic dual in-line package suitable for breadboard use and manual soldering.

Programmable Timers And Oscillators Replacement Considerations

Direct pin-compatible replacements include the NE555N/NOPB and SE555N. For low-power applications requiring the same functionality but reduced current draw, consider the LMC555N/NOPB, noting the difference in supply voltage range and package availability.