CD4521BM

Counter Dividers Overview

The CD4521BM is a CMOS frequency divider integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 18 V and features a single circuit configuration with 24 stages. The device utilizes negative-edge triggering for its flip-flops and supports asynchronous reset functionality. Designed for surface-mount installation, it is housed in a 16-SOIC package. The component ensures reliable operation across an extended temperature range from -55°C to +125°C.

Counter Dividers Feature Summary

• Provides 24-stage frequency division capability using cascaded divide-by-2 flip-flops.
• Supports asynchronous reset to initialize the counter state immediately.
• Operates on negative-edge triggered clock inputs for precise timing control.

Counter Dividers Applications

• Digital frequency synthesis systems
• Clock signal generation and distribution networks
• Timing control circuits requiring stable frequency reduction

Counter Dividers Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape/reel specifications. Ensure compatibility with operating voltage requirements ranging from 3 V to 18 V. Confirm RoHS compliance status through current manufacturer notices. Validate that the procurement source provides genuine components matching the Texas Instruments part number.

Counter Dividers Selection Notes

Select this component when a high-stage count frequency divider is required in a compact surface-mount form factor. Consider the wide operating temperature range for industrial or automotive environments. Verify that the input signal characteristics align with the negative-edge triggering requirement. Ensure the design accommodates the power supply constraints defined in the datasheet.

Counter Dividers Part Context

This device belongs to the CD4500B logic family, known for high noise immunity and low power consumption in CMOS technology. It serves as a fundamental building block for digital timing applications where precise frequency division is necessary. The SOIC package allows for efficient PCB layout in space-constrained designs.

Counter Dividers Replacement Considerations

CD4521BM96 is listed as a manufacturer-recommended alternative. Other potential substitutes include HEF4521BT from Nexperia and MC14521BDG from onsemi, though pinout and electrical parameter verification is essential.