NB2872ASNR2

Overview

The NB2872ASNR2G is a clock/frequency synthesizer IC manufactured by onsemi, designed for generating precise timing signals. It features a single PLL circuit with a 1:2 input-to-output ratio and supports CMOS or crystal inputs to produce CMOS outputs. The device operates within a supply voltage range of 3V to 3.6V and supports maximum frequencies up to 30MHz. Packaged in a compact TSOT-23-6 (SOT-23-6 Thin) surface-mount format, it functions within an industrial temperature range of 0°C to 70°C. This component integrates frequency multiplication capabilities but lacks differential output configurations.

Feature Summary

• Integrated Phase-Locked Loop (PLL) for clock synthesis
• 1:2 Input-to-Output Ratio with Frequency Multiplication
• CMOS Input and Output Logic Levels
• Compact TSOT-23-6 Surface-Mount Package

Applications

• General-purpose clock generation in embedded systems
• Timing signal distribution for digital circuits
• Frequency synthesis for low-speed communication interfaces

Procurement Notes

The NB2872ASNR2G is officially listed as discontinued by the manufacturer. Availability is restricted to secondary market distributors such as Rochester Electronics, LLC, which may hold limited stock. Verification of part authenticity and storage history is critical when sourcing from non-original channels due to the end-of-life status. Standard procurement quantities typically follow the original 2,500-unit reel packaging if available.

Selection Notes

Designers should verify that the required output frequency does not exceed the 30MHz maximum limit. The device requires a 3V to 3.6V power supply; ensure compatibility with system voltage rails. Since the unit is discontinued, alternative components with similar PLL architectures and TSOT-23-6 footprints must be evaluated for pin-to-pin compatibility and electrical parameter alignment during new product development.

Part Context

This component belongs to the NB2872 family of clock synthesizers. It shares the core NB2872 architecture but is distinguished by its specific package suffix 'SNR2G' indicating the TSOT-23-6 form factor and RoHS compliance. It serves as a fixed-function solution compared to programmable variants in broader clock generator families.

Replacement Considerations

As the part is discontinued, direct substitutes are not explicitly confirmed in public documentation. Engineers must evaluate other onsemi PLL clock synthesizers in the TSOT-23-6 package that support 30MHz operation and CMOS I/O levels. Cross-referencing datasheets for equivalent supply voltage ranges and input/output logic types is necessary to ensure functional replacement.