74HC4520D,118

Counter Dividers Overview

The Nexperia 74HC4520D,118 is a dual 4-bit internally synchronous binary counter housed in an SO-16 (SOT109-1) package. It features two clock inputs per counter (nCP0 and nCP1), buffered outputs for all four bit positions (nQ0 to nQ3), and an asynchronous master reset input (nMR). The device operates within a supply voltage range of 2.0 V to 6.0 V and supports CMOS logic levels. It includes clamp diodes on inputs to allow interfacing with voltages exceeding VCC using current limiting resistors.

Counter Dividers Feature Summary

• Dual independent 4-bit counters with internal synchronization
• Flexible clocking via positive or negative edge-triggered inputs
• Asynchronous master reset capability independent of clock signals
• Input clamp diodes for over-voltage tolerance

Counter Dividers Applications

• Multistage synchronous counting
• Multistage asynchronous counting
• Frequency dividers

Counter Dividers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the package type and temperature range. Ensure that the procurement channel provides valid traceability for the component. Confirm compliance requirements such as RoHS status prior to finalizing orders.

Counter Dividers Selection Notes

Select this component when dual independent 4-bit counting functionality is required within a single integrated circuit. Consider the wide supply voltage range and high noise immunity for robust operation in varying electrical environments. Verify that the SO-16 package dimensions fit the available PCB space constraints.

Counter Dividers Part Context

This part belongs to the 74HC series of logic components, designed for general-purpose digital applications. It is manufactured by Nexperia USA Inc. and is distinct from the 74HCT variant which utilizes TTL input levels. The device is specified for industrial temperature ranges up to +125 °C.

Counter Dividers Replacement Considerations

The 74HC4520PW serves as a direct functional replacement utilizing a TSSOP16 package instead of the SO-16 configuration. Both variants share identical logical operations and pin functions.