CD74HC390E

Counter Dividers Overview

The CD74HC390E is a high-speed CMOS logic dual decade ripple counter manufactured by Texas Instruments. It operates within a supply voltage range of 2.0 V to 6.0 V and supports asynchronous up-counting with divide-by-2 and divide-by-5 functions. The device features a 16-pin PDIP package, handles a maximum frequency of 20 MHz, and includes a load capacitance specification of 50 pF. It functions in an asynchronous mode with four-bit depth per counter element and operates reliably across a temperature range from -55°C to +125°C.

Counter Dividers Feature Summary

• Integrates two independent decade counters capable of dividing frequencies by two and five.
• Utilizes high-speed silicon gate CMOS technology for low power consumption comparable to LSTTL speeds.
• Supports asynchronous reset functionality for flexible control in digital circuits.

Counter Dividers Applications

• Digital frequency division circuits
• Time-base generation systems
• Binary-coded decimal counting applications

Counter Dividers Procurement Notes

Verify the specific suffix 'E' confirms the 16-pin PDIP through-hole package variant. Confirm RoHS compliance status matches current manufacturing standards. Ensure the operating voltage requirements align with the 2V to 6V specification before integration into the target design.

Counter Dividers Selection Notes

Select this component when a dual decade counter with through-hole mounting is required. The HC series offers compatibility with standard CMOS logic levels. Consider the HCT variant if direct interfacing with TTL logic inputs is necessary without level shifting.

Counter Dividers Part Context

This part belongs to the Texas Instruments 74HC series of logic integrated circuits. The series utilizes low-power Schottky technology to achieve performance similar to LSTTL while maintaining reduced power dissipation typical of standard CMOS devices. It is designed for general-purpose digital logic applications requiring reliable counting operations.

Counter Dividers Replacement Considerations

CD74HC390M (SOIC-16 surface mount equivalent). Verify pinout compatibility and package dimensions when transitioning between DIP and SOIC formats.