.The MAX232EWE+T is an RS-232 Interface IC +5V-Powered, Multichannel RS-232 Drivers/Receivers manufactured by Analog Devices. It is a low power ESD-protected transceiver that allows serial communication of TTL/CMOS levels at data rates up to 250 kbps with a low voltage (5 V) powering option. It features 16 transceivers in a single package with four selectable standards: RS-232, RS-422, RS-485, and half duplex RS-485. It has integrated two 50-mA LSTTL load drivers and two LSTTL-to-RS-232 converter circuits. The device also features 0 V to 5 V input and output levels, low power sleep mode, and selectable shutdown of the drivers to reduce power consumption. The MAX232EWE+T is a popular choice for many applications such as cellular phones, PDAs, modems, embedded systems, set-top boxes, and highly integrated PC peripherals.