RS-232 transceiver in a 16-pin DIP — what it is and where it fits
The Maxim Integrated MAX202EEPE+ is a full-duplex RS-232 transceiver with two drivers and two receivers, packaged in a 16-lead PDIP for through-hole assembly. It operates from a single 4.5 V to 5.5 V supply and handles data rates up to 120 kbps. The industrial temperature range (-40°C to 85°C) suits it for factory-floor serial links, PLC programming ports, and bench-top test equipment where a DIP package is preferred for socketed prototyping or high-reliability solder joints.
120 kbps data rate — what it means for the serial link
At 120 kbps, this transceiver is sized for standard UART communication at 115200 baud and below — common for industrial sensors, terminal interfaces, and configuration ports. It will not support higher-speed RS-232 applications like video or high-throughput data loggers that need 1 Mbps or more. The 500 mV receiver hysteresis provides noise immunity on longer cable runs, reducing the chance of false start bits in electrically noisy environments.
5 V only — plan the power rail accordingly
The supply range is 4.5 V to 5.5 V, so this part is a 5 V-only device. If your design uses a 3.3 V logic core, you will need a separate 5 V rail or a level translator between the UART and the transceiver. The through-hole PDIP package (16-DIP, 0.300" width) is a legacy footprint — verify board clearance and hole size if retrofitting into an existing layout.
Active lifecycle — no end-of-life concern
The MAX202EEPE+ is listed as Active and ROHS3 compliant.