MaxLinear

MaxLinear builds interface and connectivity ICs, and the profiles in this catalog cover its serial transceiver lines. The SP485E covers classic 5 V RS-485 buses, the SP3485 brings the same half-duplex RS-485 function to native 3.3 V rails at data rates up to 10 Mbps, and the SP3232E handles RS-232 level translation for legacy serial ports with enhanced ESD protection on the bus pins. Ordering codes specify the package body, the temperature grade and the packing form, with /TR suffixes marking tape-and-reel supply, so confirm all three against your assembly and qualification requirements before ordering. Serial transceivers are frequent second-source candidates, but the industry-standard pinouts used across this family hide real differences in supply voltage, data rate and ESD rating between vendors. Verify those three parameters against the exact ordering code before substituting a MaxLinear part into an existing design, or the other way around, and check receiver thresholds where long cables or idle-bus states matter.

Sourcing notes for MaxLinear parts. Always quote the complete manufacturer ordering code — package, temperature grade, speed or accuracy grade, and packing (reel, tube or tray) all change availability and price, and suffixes are where most mismatches happen. Check the lifecycle status on the manufacturer site before committing to a multi-year build; parts flagged not-recommended or obsolete need a last-time-buy plan or a verified alternate lined up early. With every offer, request traceability documents — date code, lot code and original packing — and confirm the inspection steps your supplier applies to high-risk lots.