MC74HC390ADG Dual 4-Stage Binary Ripple Counter | High-Speed CMOS | SOIC-16 SMD

Description

The MC74HC390 is a high-speed, silicon-gate CMOS Dual 4-Stage Binary Ripple Counter. This device consists of two independent 4-stage binary counters, each containing a divide-by-2 section and a divide-by-5 section. These can be cascaded to create a divide-by-10 (decade) counter or used separately for flexible frequency division.

The counter stages advance on the negative-going transition of the clock input. Each of the two sections features an independent master reset (MR) input that, when taken HIGH, resets the counter stages to zero. This IC is highly versatile for frequency synthesis, timing, and counting applications where multiple counter stages or specific division ratios (like BCD or binary) are required.

Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.

Features

• Dual independent 4-stage ripple counters
• Each section features a divide-by-2 and divide-by-5 counter
• Cascadable for decade (divide-by-10) or binary counting
• Asynchronous Master Reset (MR) for each section
• High-speed CMOS (HC) technology
• Wide operating voltage range (2V to 6V)
• Low power consumption
• Compact SOIC-16 SMD package

Benefits

• Highly flexible: configure as two separate counters or cascade for higher division
• Ideal for generating BCD signals
• Standardized pinout compatible with high-speed CMOS systems
• Reliable reset functionality for accurate system initialization

Applications

• Frequency Division and Synthesis
• BCD Counter/Display Driver Interface
• Time-Delay Generation
• Sequential Logic Controllers
• Digital Pulse Counting

Package Includes

• 1 x MC74HC390ADG Dual 4-Stage Binary Ripple Counter IC (SOIC-16 SMD)

Specifications