NE555DR1G4

Overview

The NE555DR1G4 is a single precision timer integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 4.5V to 16V and features a maximum frequency of 3MHz. The device draws a typical supply current of 10mA and functions across an operating temperature range of -40°C to 125°C. Packaged in an 8-SOIC surface-mount housing with a width of 3.90mm, this component supports astable or monostable operation modes.

Feature Summary

• Supports timing durations ranging from microseconds to hours
• Capable of both astable and monostable operational modes
• Features adjustable duty cycle control
• Output is TTL-compatible and can source or sink current

Applications

• Missing-pulse detection circuits
• Timing pulse generation
• Logic time delays
• Pulse stretching applications

Procurement Notes

Verify the specific ordering suffix 'G4' against the manufacturer's latest documentation to confirm compliance with environmental standards and material composition requirements. Ensure that the package designation matches the required surface-mount footprint for PCB layout compatibility. Cross-reference the datasheet revision date to validate any recent design changes or pinout adjustments before finalizing procurement orders.

Selection Notes

Select this component when precise timing intervals are required in space-constrained designs utilizing surface-mount technology. The 8-SOIC package offers a compact form factor suitable for high-density layouts. Consider the 3MHz frequency limit and 16V maximum supply voltage to ensure the application parameters remain within the specified operating conditions for reliable performance.

Part Context

This part belongs to the NE555 family of single precision timers, which are industry-standard components for timing and oscillation tasks. The 'DR' suffix indicates the 8-SOIC package type, while 'G4' typically denotes lead-free and RoHS-compliant manufacturing. It serves as a direct replacement for legacy through-hole variants in modern surface-mount assemblies.

Replacement Considerations

The NA555DR is a functionally equivalent alternative from Texas Instruments. Verify pin compatibility and thermal characteristics when substituting. Other generic 555 timer ICs may require circuit adjustments due to variations in internal transistor thresholds and output drive capabilities.