NE556DRG4

Programmable Timers And Oscillators Overview

The NE556DRG4 is a dual precision timer integrated circuit manufactured by Texas Instruments, belonging to the NE556 series. It integrates two independent 555-type timers within a single 14-pin SOIC package. The device operates on a supply voltage range of 4.5 V to 16 V and supports frequencies up to 100 kHz. Key electrical specifications include a maximum high-level output current of 200 mA and a low-level output current of -200 mA, with a typical operating supply current of 4 mA. It is designed for surface-mount installation and functions within an ambient temperature range of 0°C to +70°C.

Programmable Timers And Oscillators Feature Summary

• Dual Timer Configuration: Contains two independent precision timers in one 14-SOIC package.
• High Current Drive: Provides 200 mA source and sink capability at the output stage.
• Wide Supply Range: Operates reliably from 4.5 V to 16 V DC.
• RoHS Compliant: Manufactured in accordance with RoHS3 standards.

Programmable Timers And Oscillators Applications

• DC-to-DC converters
• Sequential timing circuits
• Time delay generation
• Pulse width modulation

Programmable Timers And Oscillators Procurement Notes

Verify component status before procurement as the NE556DRG4 is listed with an End-of-Life (EOL) designation, indicating it will be discontinued by the manufacturer. Confirm availability through authorized distributors, noting that stock levels may be limited or subject to minimum order quantities. Ensure the specific G4 suffix aligns with required packaging and compliance specifications for the target application.

Programmable Timers And Oscillators Selection Notes

Select the NE556DRG4 when a design requires two independent timing channels in a compact surface-mount footprint. Compare against the standard NE556DR if long-term supply continuity is critical, as the DRG4 variant carries an EOL status. Verify that the 14-SOIC thermal characteristics and the 0°C to +70°C operating temperature range meet the environmental constraints of the final assembly.

Programmable Timers And Oscillators Part Context

The NE556DRG4 is part of the broader NE556 family of dual timers, which are widely used replacements for single 555 timer configurations requiring multiple channels. The 'G4' suffix typically denotes specific manufacturing lot or compliance attributes defined by Texas Instruments. This component serves as a direct functional equivalent to other industry-standard dual timer ICs, facilitating pin-compatible upgrades in existing designs.

Programmable Timers And Oscillators Replacement Considerations

The NE556DR is a verified substitute part number for the NE556DRG4, offering identical functionality. Other compatible alternatives include the NE556D from Fairchild Semiconductor. Designers should verify pinout compatibility and electrical parameter tolerances when switching between these manufacturers.