MC14518BDWR2

Counter Dividers Overview

The MC14518BDWR2G is a dual BCD up counter manufactured by onsemi, utilizing CMOS technology in a 16-pin SOIC Wide package. It contains two independent internally synchronous 4-stage counters with D flip-flops. The device operates within a supply voltage range of 3.0 Vdc to 18.0 Vdc and supports an operating temperature range from -55°C to +125°C. Propagation delay times vary between 80 ns and 560 ns depending on voltage, while clock pulse frequencies reach up to 8.0 MHz at 15 V.

Counter Dividers Feature Summary

• Internally synchronous architecture for high-speed counting applications
• Interchangeable Clock and Enable lines allowing incrementing on positive or negative transitions
• 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
• Systems demanding high noise immunity

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'R2G' corresponds to the tape and reel packaging format containing 1000 units per reel. Confirm that the component meets RoHS compliance standards and is lead-free. Ensure the procurement documentation aligns with the manufacturer's current datasheet revision to validate electrical characteristics and mechanical dimensions.

Counter Dividers Selection Notes

Select this component when a dual BCD counter is required instead of a binary counter variant. Consider the interchangeable clock and enable functionality if flexible triggering edges are necessary for cascading stages. Verify that the wide operating temperature range and supply voltage compatibility meet the specific environmental and power constraints of the target design.

Counter Dividers Part Context

This part belongs to the MC14518B series, which features dual independent counters constructed with MOS enhancement mode devices. It serves as the complementary counterpart to the MC14520B dual binary counter. Both devices share similar pinouts and construction but differ in their counting logic, with the MC14518B specifically designed for BCD (Binary-Coded Decimal) operations.

Counter Dividers Replacement Considerations

MC14518BDWG

Counter Dividers FAQ

How does the MC14518B handle undefined states?

The device is capable of clearing out of all undefined states within two clock periods.

What determines the propagation delay time?

Propagation delay varies based on the supply voltage and load capacitance, ranging from approximately 80 ns to 560 ns under standard test conditions.