glue logic

In electronics, glue logic is the custom electronic circuitry needed to achieve compatible interfaces between two (or more) different off-the-shelf integrated circuits. This is often achieved with a few cheap 7400- or 4000-components, or, in more complex cases, a CPLD or FPGA; the falling price of the latter two devices, combined with their reduced size and power drain compared to discrete elements, is making them common even for simple systems.
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