NE555DR

Overview

The NE555DR is a single precision timer integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 16V and draws a typical supply current of 10 mA. The device supports frequencies up to 100 kHz and functions in both monostable and astable modes. It is housed in an 8-SOIC package with a width of 3.90 mm, designed for surface-mount installation. The component is rated for operation between 0°C and 70°C.

Feature Summary

• Single-channel 555-type timer/oscillator IC
• Supply voltage range: 4.5V to 16V
• Maximum operating frequency: 100 kHz
• 8-pin SOIC (0.154" / 3.90mm wide) surface-mount package

Applications

• Precise time delay generation
• Pulse generation circuits
• Logic clock signal sources
• Waveform generation applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements for the intended assembly process. Check for any recent product design change notices that may affect pinout or electrical parameters.

Selection Notes

Select this component when a standard bipolar 555 timer is required in a surface-mount configuration. Ensure the application voltage stays within the 4.5V to 16V limit. Consider the TLC555CDR if lower power consumption (360 µA) or higher frequency capability (2.1 MHz) is needed, as it utilizes LinCMOS technology instead of bipolar.

Part Context

The NE555DR belongs to the NE555 family of single precision timers from Texas Instruments. This series includes variants such as the DIP-8 NE555P and CMOS-based TLC555CDR. The DR suffix specifically denotes the SOIC surface-mount package variant of the standard NE555 timer circuit.

Replacement Considerations

Direct pin-compatible alternatives include the SN55555J (military grade) and other NE555 derivatives from Texas Instruments. Cross-manufacturer equivalents like the LM555 or STMicroelectronics NE555N offer functional compatibility but require verification of specific electrical parameter tolerances.