CD74HC390E – TEXAS INSTRUMENTS

The CD74HC390E is a high-speed CMOS decade counter with a synchronous clear input, offering a versatile solution for frequency division and counting applications. This specific part, unlike asynchronous alternatives, ensures glitch-free operation even at high clock frequencies thanks to its synchronous design. It operates from a wide voltage range of 2V to 6V, making it adaptable to various power supply configurations. Packaged in a space-saving 16-pin SOIC (Small Outline Integrated Circuit), it integrates eight internal flip-flops arranged as a divide-by-ten counter. Its outputs are readily available in both binary and decade counting modes._x000D_
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The CD74HC390E boasts low power consumption, typically under 10µA in standby mode, making it suitable for battery-powered systems. Its high noise immunity, characteristic of CMOS technology, enhances reliability in noisy environments. Common use cases include digital clock circuits, frequency synthesizers, motor control systems requiring precise pulse generation, and general-purpose counting applications where synchronous operation is crucial. Its advantages stem from the combination of high speed, low power, and synchronous counting capabilities, offering a robust and efficient solution compared to less integrated or asynchronous alternatives. Careful consideration of its maximum clock frequency (specified in the datasheet) is necessary for optimal performance.