CD4521BNSR

Counter Dividers Overview

The CD4521BNSR is a CMOS frequency divider and rate multiplier integrated circuit manufactured by Texas Instruments. It operates within the CD4000 series logic family and features a single circuit configuration housed in a 16-pin SOIC surface-mount package. The device supports a wide operating supply voltage range from 3 V to 18 V and functions reliably across an extended temperature range of -55°C to +125°C. This component serves as a programmable divider capable of handling high-frequency signals for timing and counting applications.

Counter Dividers Feature Summary

• Provides programmable frequency division capabilities using binary or BCD counters
• Supports both rate multiplication and frequency division operations
• Features high noise immunity typical of CMOS technology
• Compatible with standard digital logic interfaces

Counter Dividers Applications

• Frequency synthesizer circuits
• Digital clock generation systems
• Rate multipliers in timing applications
• Programmable counter designs

Counter Dividers Procurement Notes

Verify the specific suffix NSR indicates tape and reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SOIC-16 footprint matches the target PCB layout dimensions. Check for any recent product change notifications regarding pinout or electrical characteristics updates.

Counter Dividers Selection Notes

Select this component when a single-channel programmable divider is required for CMOS logic environments. Consider the 3 V to 18 V supply range for flexibility in power design. Evaluate the -55°C to +125°C operating temperature range against environmental conditions. Compare against other CD4500 series devices if multiple logic functions are needed on one chip.

Counter Dividers Part Context

This part belongs to the Texas Instruments CD4500 series, which encompasses various CMOS logic functions including counters, dividers, and timers. The CD4521B variant specifically focuses on frequency division tasks. It is distinct from binary up-counters like the CD4520B or BCD dividers like the CD4522B, offering unique rate multiplication features.

Counter Dividers Replacement Considerations

Check for CD4521BP or CD4521D for equivalent functionality in different package types such as DIP or PDIP. Verify compatibility with CD4021B if parallel load features are not required. Ensure substitute parts maintain the same SOIC-16 footprint if board space is constrained.