RS232 transceiver with a wide supply window
Supply voltage — one part for 3.3V and 5V rails
If your BOM has a 3.3V MCU UART talking to legacy 5V RS232 gear, this part handles both sides without a second regulator or level shifter. The receiver inputs and driver outputs are specified across the full supply range, so the same device works in a 3.3V-only system or a mixed-voltage backplane.
Temperature grade — indoor equipment only
It is not specified for industrial or automotive use where the ambient might drop below freezing or exceed 70°C. For extended temperature, look at the industrial-grade MAX3232 variants in the same family.
The 0.154-inch body width is the narrower SOIC variant, so verify the land pattern if your layout was originally designed for the wider 0.300-inch SO-16.