The SN74AS280NSR is an integrated circuit (IC) component designed for digital data organization and comparison purposes. Manufactured by Texas Instruments, this IC belongs to the 74AS logic family, which is known for its high-speed performance and compatibility with bipolar transistor-transistor logic (TTL) levels.
The key features of the SN74AS280NSR include:
1. Data Organization: The IC consists of nine input lines, labeled A1 to A9, and two eight-line to one-line data selectors, which are used to organize and manipulate the input data. These selectors enable the user to select one out of eight input lines based on a three-bit binary code provided at the selection inputs.
2. Data Comparison: The SN74AS280NSR has two identical 9-bit magnitude comparators, labeled C0 to C8. These comparators allow for the comparison of two 9-bit binary numbers. The magnitude comparator outputs three signals: A > B, A < B, and A = B, indicating the relative magnitudes of the two input numbers.
3. Cascading Capability: The IC has an additional carry output, Cout, which enables cascading of multiple SN74AS280NSR ICs to compare larger data words. This allows for easy expansion and scalability of the circuit when comparing multiple sets of 9-bit binary numbers
