N74F521D,623

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The N74F521D/623 are high-speed, open-collector output, low-power Schottky TTL (LSTTL) comparsators. They have multiple input selection options and specially designed logic circuitry for high-speed operation. The N74F521D/623 are TTL compatible, dual-output devices with open-collector output. They feature low high-level logic thresholds that allow high-speed logic outputs to be operated with minimal current levels. Both devices feature TTL inputs, high-capacitance output stages, and latch-up protection.The N74F521D/623 are designed to drive both non-inverting and inverting open-collector output devices. The N74F521D features two non-inverting outputs, while the N74F623 has two inverting outputs. The N74F521D/623\'s multiple output stages allow them to drive large capacitive loads, enabling them to operate at speeds up to 300ns at 3.3V. The N74F521D/623 are available in 8-pin DIP and SOIC packages.The main application fields of the N74F521D/623 comparsators include logic circuits, test and measurement systems, and analog-to-digital converters. The N74F521D/623 are well-suited for applications requiring high-speed operation and open-collector output. They are also ideal for applications with low power requirements, such as portable and battery-operated systems.The working principle of the N74F521D/623 is based on integrated circuit (IC) comparator logic. The N74F521D/623 have two inputs, A and B, and two outputs, C and D. When input A is greater than input B, output C is high and output D is low. When input A is less than input B, output C is low and output D is high. The N74F521D/623 feature fast switching times, low-power operation, and high noise immunity.In summary, the N74F521D/623 are high-speed, open-collector output, low-power Schottky TTL comparsators. They feature TTL inputs and multiple output selection options, allowing them to be used in a variety of applications. The N74F521D/623 are well-suited for fast switching applications, such as in logic circuits, test and measurement systems, and analog-to-digital converters.

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