CD74HCT390EG4

Counter Dividers Overview

The CD74HCT390EG4 is a high-speed CMOS logic dual decade ripple counter manufactured by Texas Instruments. It integrates two independent asynchronous decade counters within a single 16-pin PDIP package. Each counter supports up-counting sequences and provides divide-by-2 and divide-by-5 functions. The device operates on a supply voltage range of 4.5 V to 5.5 V and is rated for an extended industrial temperature range from -55 °C to +125 °C.

Counter Dividers Feature Summary

• Dual independent decade counters with asynchronous reset capability
• High-speed CMOS technology ensuring low power consumption
• Supports both divide-by-2 and divide-by-5 frequency division

Counter Dividers Applications

• Digital counting circuits requiring decade sequencing
• Frequency division networks in timing applications
• Asynchronous reset logic systems

Counter Dividers Procurement Notes

Verify the suffix 'G4' indicates lead-free composition and RoHS compliance per Texas Instruments standards. Confirm the PDIP-16 through-hole package matches the target PCB footprint. Ensure the HCT logic family compatibility aligns with the system's TTL input requirements.

Counter Dividers Selection Notes

Select this component when dual independent decade counters are required in a through-hole DIP package. The HCT series ensures compatibility with standard TTL logic levels while offering CMOS power efficiency. Verify that the asynchronous reset functionality meets the system control requirements.

Counter Dividers Part Context

This part belongs to the Texas Instruments 74HCT logic family, designed for high-speed operation with CMOS power characteristics. The CD74HCT390 variant specifically provides dual decade counters, distinguishing it from single-counter or binary counter alternatives within the same logical architecture.

Counter Dividers Replacement Considerations

CD74HCT390E serves as a direct functional equivalent without the specific G4 environmental marking.