DS1489A driver equivalent, quad line driver.
n n n n n Four separate receivers per package Programmable threshold Built-in input threshold hysteresis “Fail safe” operating mode: high output for open inputs Inputs wi.
Using the Response Control Pin Noise Filter See Figure 7 Threshold Shift See Figures 3, 4 Noise Filter and Threshold Shi.
The DS1489/DS1489A are quad line receivers designed to interface data terminal equipment with data communications equipment. They are constructed on a single monolithic silicon chip. These devices satisfy the specifications of EIA Standard RS-232D. T.
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