The 74AS298 is a quadruple 2-input multiplexer with storage that provides essentially the equivalent functional capabilities of two separate MSI functions in a 16-pin package. When the word-select (WS) input is low, word 1 (A1, B1, C1, D1) is applied to the flip-flops. A high input to WS causes the selection of word 2 (A2, B2, C2, D2). The selected word is clocked to the output terminals on the negative-going edge of the clock pulse. The 74AS298 is characterized for operation from 0°C to 70°C.
Selects One of Two 4-Bit Data Sources and Synchronously Stores Data With System Clock
Dual Source for Operands and Constants in Arithmetic Processor; Can Release Processor Register Files for Acquiring New Data
Implements Separate Registers Capable of Parallel Exchange of Contents, Yet Retains External Load Capability
Has Universal-Type Register for Implementing Various Shift Patterns, Including Compound Left-Right Capability
16 pin DIP. Actual brand may vary from picture.