The MAX236EWG is a transceiver from Analog Devices / Maxim Integrated, designed for RS232 communication. It operates at 4.5V to 5.5V with a data rate of 120Kbps.
The Intersil HIN236CB is a full duplex transceiver supporting RS232 protocol. It features 4/3 drivers/receivers and operates over a voltage range of 4.5V to 5.5V.
The MAX206ECWG is an RS232 transceiver from Analog Devices, featuring 4 drivers and 3 receivers. It operates with a single +5V supply and supports data rates up to 120Kbps.
