MC14518BFR2

Counter Dividers Overview

The MC14518BFR2 is a dual BCD up counter manufactured by onsemi, utilizing CMOS technology. It integrates two independent 4-stage counters within a single SOIC-16 package. The device operates on a supply voltage range of 3 V to 18 V and supports an operating temperature range from -55 °C to +125 °C. Key electrical parameters include propagation delays of 560 ns, 230 ns, and 160 ns. Each counter features internal synchronization and allows for interchangeable clock and enable lines to facilitate cascading applications.

Counter Dividers Feature Summary

• Dual independent 4-stage BCD up counters with internally synchronous operation
• Interchangeable Clock and Enable lines for flexible cascading configurations
• Diode protection provided on all input pins
• Capable of clearing undefined states within two clock periods

Counter Dividers Applications

• Multi-stage synchronous counting circuits
• Ripple counting applications requiring low power dissipation
• Digital systems requiring high noise immunity
• Low-power TTL load driving interfaces

Counter Dividers Procurement Notes

Verify the specific suffix 'FR2' against official datasheets to confirm tape-and-reel packaging specifications. Ensure compatibility with RoHS directives and lead-free requirements. Confirm moisture sensitivity levels and recommended storage conditions prior to assembly. Validate that the SOIC-16 footprint matches the target PCB design constraints.

Counter Dividers Selection Notes

Select this component when dual independent BCD counting functionality is required in a compact surface-mount package. Consider the wide supply voltage range and industrial temperature rating for harsh environments. Evaluate the interchangeability of clock and enable inputs for simplified logic design compared to binary-only alternatives like the MC14520B.

Counter Dividers Part Context

This part belongs to the MC14518B series of dual up counters produced by onsemi. It is part of the broader 14500/4000 series of CMOS logic devices. The FR2 suffix typically indicates a reel-based packaging format suitable for automated surface-mount assembly processes.

Counter Dividers Replacement Considerations

The MC14520B serves as a functional alternative but provides dual binary counters instead of BCD counters. Verify logic output encoding requirements before substitution. Other compatible parts may exist within the same logic family; consult official cross-reference guides for verified equivalents.