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Rochester Electronics CD74HC390EE4 Environmental and export classification status description

The Texas Instruments CD74HC390EE4 is a high-speed CMOS integrated circuit dual 4-stage binary ripple counter with a clock and a reset. It operates from a wide range of supply voltages ranging from 2V to 6V. This part is part of the CD54HC/HC74HC series of high-speed CMOS logic, offering excellent performance with low power consumption. Functions: 1. Dual 4-stage binary ripple counter 2. Clock inputs (A and B) for each counter 3. Reset capability for individual counters 4. High-speed operation Applications: 1. Frequency dividers 2. Clock frequency multiplication 3. Digital counters in various digital systems 4. Timing circuits Alternative Components: 1. 74LS193: Synchronous 4-bit binary up/down decade counter 2. 74HC93: 4-bit binary ripple counter 3. 74HC4040: 12-stage binary ripple counter Embedded Modules: 1. Clock inputs for each counter 2. Reset inputs for each counter 3. Flip-flops for storage elements 4. Binary counter stages Related Q&A: 1. Q: What is the maximum clock frequency supported by the CD74HC390EE4? A: The CD74HC390EE4 supports high-speed operation and can typically handle clock frequencies up to 60 MHz. 2. Q: Can I cascade multiple CD74HC390EE4 counters together? A: Yes, multiple CD74HC390EE4 counters can be cascaded by connecting the carry-out (CO) of one counter to the clock (CLK) of the next counter. 3. Q: How does the reset function work in the CD74HC390EE4? A: The individual reset inputs (R1 and R2) of the CD74HC390EE4 allow you to asynchronously reset each counter independently. 4. Q: What are some common applications of binary ripple counters like the CD74HC390EE4? A: Binary ripple counters are commonly used in frequency division, clock generation, digital counting, and time measurement applications. 5. Q: Can the CD74HC390EE4 operate at lower voltages below 2V? A: The CD74HC390EE4 is designed to operate within a supply voltage range of 2V to 6V, and it may not function reliably below this range.