MC74HC390AFG

Counter Dividers Overview

The MC74HC390AFG is a high-performance silicon-gate CMOS dual 4-stage binary ripple counter with divide-by-two and divide-by-five sections. It operates within a voltage range of 2.0 to 6.0 V and supports a maximum clock frequency of 50 MHz at 6.0 V. The device features asynchronous reset inputs for each counter, negative-edge triggered flip-flops, and an operating temperature range from -55°C to +125°C. Packaged in a 16-SOEIAJ (F suffix) format, it contains two independent counters capable of cascading up to a ÷100 divider.

Counter Dividers Feature Summary

• Dual independent 4-bit counters with separate divide-by-two and divide-by-five sections
• Outputs directly interface to CMOS, NMOS, and TTL loads
• Asynchronous reset functionality for both counters
• Negative-edge triggered internal flip-flops

Counter Dividers Applications

• BCD decade counting applications
• Bi-quinary count sequence generation
• Cascaded frequency division circuits
• Digital timing and control logic systems

Counter Dividers Procurement Notes

Verify the specific F suffix indicates the SOEIAJ-16 package configuration. Confirm RoHS compliance status if lead-free material is required for assembly processes. Ensure the design accommodates the specified operating temperature range and supply voltage limits during integration.

Counter Dividers Selection Notes

Select this component when dual independent decimal or bi-quinary counters are required in a compact surface-mount footprint. The HC series compatibility ensures direct interfacing with standard CMOS logic families. Verify that the asynchronous reset requirement aligns with system initialization needs.

Counter Dividers Part Context

This part belongs to the MC74HC390A family of high-speed CMOS logic devices. It serves as a functional equivalent to the LS390 pinout while offering CMOS input/output characteristics. The device is designed for general-purpose digital counting and frequency division tasks within industrial and consumer electronics.

Counter Dividers Replacement Considerations

Direct substitutes include the MC74HC390ADR2G. Other compatible alternatives may include parts from Nexperia or Texas Instruments within the same 74HC390 logical family, provided package and electrical specifications match.