High-Speed CMOS Dual Decade Counter 74HC390E

Overview: High-Speed CMOS Counter IC

The 74HC390E is a high-speed CMOS dual decade counter, engineered for precise frequency division and counting in digital systems. This integrated circuit combines fast performance with low power consumption, making it suitable for high-reliability applications in communications, instrumentation, industrial automation, and timing circuits.

Key Features & Technical Specifications

• Dual 4-Bit Counters: Each package includes two independent counters for flexible use in frequency division and sequential logic applications.
• High-Speed CMOS Technology: Optimized for rapid switching and low propagation delays.
• Logic Family: 74HC Series (High-Speed CMOS)
• Supply Voltage (VCC): 2V to 6V for broad compatibility with digital systems.
• Input Compatibility: CMOS logic-level inputs, ideal for direct interface with microcontrollers and programmable logic devices.
• Package: 16-pin Dual Inline Package (DIP)
• Texas Instruments Part Number: 74HC390E
• Quantity per Package: 1 IC

Applications & Usage

The 74HC390E counter IC is designed for precise event counting, frequency division, and clock signal shaping. Engineers commonly implement it in:

• Digital event counters and frequency dividers
• Timing and pulse generation circuits
• High-speed data acquisition systems
• State machine sequencing

Integration is straightforwardsimply connect the supply, configure the clock and reset inputs, and use the outputs for downstream logic or display applications.

Reliability and Performance

Built on robust CMOS fabrication, the 74HC390E counter offers superior noise immunity and dependable operation in both industrial and commercial environments. Its high switching speeds and flexible divider architecture make it ideal for both new designs and legacy system repairs requiring decade counter functionality.

This part is the equivalent replacement for the following:

1820-3207, 74HC390, 74HC390N, 8-759-203-39, CD74HC390, CD74HC390E, ECG74HC390, GD74HC390, HD74HC390, HD74HC390P, LR74HC390, M74HC390, M74HC390B1, M74HC390B1N, M74HC390P, MC74HC390, MC74HC390N, MM74HC390, MM74HC390N, MN74HC390, NJU74HC390N, NTE74HC390, PC74HC390, PC74HC390P, SK7C390, SN74HC390, SN74HC390N, TC74HC390, TC74HC390AP, TC74HC390P, UPD73HC390, UPD74HC390, UPD74HC390C