The MAX233CPP is a full transceiver from Analog Devices / Maxim Integrated, designed for RS232 communication. It operates with a supply voltage of 4.75V to 5.25V.
The MAX233ACPP is a full duplex RS232 transceiver from Analog Devices / Maxim Integrated. It operates from a 4.75V to 5.25V supply and features a data rate of 120Kbps.
The MAX233CPP+G36 is a full duplex transceiver from Analog Devices, operating over a 4.75V to 5.25V supply range. It supports RS232 protocol with a data rate of 120Kbps.