74LCX821WMX

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The 74LCX821WMX integrated circuit is a good example of a logic flip flop, part of the family of integrated circuits known as the low-power advanced CMOS logic (LCX) line. This IC is used in mostly industrial systems, such as programmable logic controllers (PLCs) which control complex machinery operating in hard-to-reach and hazardous environments.A flip flop is an electronic component that has two stable states and essentially makes a decision as to which state it will be in based on the inputs it receives. It is more stable than one comprised of entirely transistors, depending on the logic chips in use, as it is designed to integrate multiple transistors with a miniscule size.The 74LCX821WMX flip flop features output-enable, latch-enable, parallel clear, and set-enable functions. This particular component is programmable, and can be configured to modify the complexity level of the logic, as well as the various effects of each control line on the output.The 74LCX821WMX operates with a CMOS logic family, meaning the output is active low, or state of zero. With an output-enable line, state of one, the device will retrieve the data from the data line. When the output-enable is active, state of one, the device will pass that data through, otherwise it remains in its current state.The latch-enable line can be used to store data to the flip flop, which is the normal mode of operation. It will only store the data when the latch-enable line is in a state of one and the output-enable is in a state of zero.The parallel clear line (PC) and set-enable line (SE) are both used to reset and configure the flip flop. In this case, the PC line is used to clear the register, and the SE line is used to set the register. Both can only be used when the latch-enable is in a state of zero.In summary, the 74LCX821WMX is a logic flip flop that is mostly used in industrial applications because of its ability to operate in hard-to-reach and hazardous environments. It integrates multiple transistors, allowing for control over data and the output of that data. It features an output-enable, latch-enable, parallel clear and set-enable, allowing for versatility when configuring the flip flop.

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