For high-speed scanning, the technical variations between the standard iterations of both ICs are outlined below: Feature / Parameter MaxLinear SP3232E Analog Devices / TI MAX3232 2.7V (Degrades to EIA/TIA-562) 3.0V (Strict RS-232 minimum) Standard Maximum Data Rate 235 kbps (Up to 1000 kbps for EU variants) 250 kbps (Up to 1 Mbps for High-Speed variants) Receiver Input Absolute Max ( RINcap R sub cap I cap N end-sub ) ±15Vplus or minus 15 cap V ±25Vplus or minus 25 cap V ±30Vplus or minus 30 cap V Standard Operating Current ( ICCcap I sub cap C cap C end-sub ) 300 µA (Typical, no load) 300 µA to 8 mA (Variant dependent) Driver Output Absolute Max ( DOUTcap D sub cap O cap U cap T end-sub ) ±13.2Vplus or minus 13.2 cap V ±13.2Vplus or minus 13.2 cap V Integrated TTL Logic Pull-ups Generally None (Inputs float if left open) Variant dependent (Often missing on standard ESE+) Primary Industry Footprint SOIC-16, SSOP-16, TSSOP-16 PDIP-16, SOIC-16, TSSOP-16, TQFN Technical Deep-Dive 1. Supply Voltage and Low-Power Logic Subsets
. While they are pin-compatible and often used interchangeably in serial modules, they differ primarily in their minimum operating voltage and manufacturer-specific naming conventions. TI E2E support forums Key Technical Differences MAX3222/MAX3232/MAX3237/MAX3241 * sp3232+vs+max3232+exclusive