Dual RS422/RS485 line driver in 8-SOIC
The SN75158D is a dual-channel line driver from Texas Instruments' 75000 series, designed for RS422 and RS485 bus interfaces. It provides 2 drivers and 0 receivers in an 8-SOIC package, making it a pure transmit-side component for differential pair signaling. The supply voltage range of 4.75V to 5.25V ties it to a 5V nominal rail — common in legacy telecom and industrial control backplanes.
Package and footprint reality
Housed in an 8-SOIC (0.154", 3.90mm width) surface-mount package, the SN75158D uses the standard SOIC-8 footprint shared by hundreds of logic and interface parts. The 1.27 mm pin pitch is board-friendly — two-layer PCBs fan out easily, and rework with a hot-air station is straightforward. The supplier device package is listed as 8-SOIC, confirming the industry-standard body width. For reel/tape quantities, confirm the alternate ordering code with your distributor.
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No stock-holding claim is made here — we source per RFQ.
