The MAX232ECN is a Maxim Integrated RS232 transceiver in a 16-pin PDIP through-hole package. It provides two drivers and two receivers (2/2) for full-duplex serial communication at data rates up to 250 kbps. It is a member of the industry-standard MAX232 family, widely used for legacy RS232 port interfaces in industrial PCs, test equipment, and embedded systems that still require a true ±12 V swing from a 5 V rail.
At 250 kbps, this transceiver is sized for standard UART traffic up to 115200 baud with margin — not for high-speed RS232 links above 1 Mbps. The 500 mV receiver hysteresis provides decent noise immunity on the receive lines, adequate for cable runs up to a few metres inside a cabinet.
It belongs in office equipment, benchtop instruments, and indoor industrial controllers — not in engine bays, outdoor telecom cabinets, or cold storage. For extended-temperature applications, look at the MAX232E or MAX232A variants that carry industrial or automotive temperature grades.
Lifecycle status and sourcing
For new designs, it is a safe choice if the 16-DIP through-hole package and 5 V-only supply fit your BOM.