New developments in RS232 interfaces
Robert Dobkin
Abstract
New developments in RS232 interface design are described.
Keywords
RS232 interface
RS232 driver
RS232 receiver
New RS232 interface chips have been developed that offer significant advantages over older devices such as the 1488 and 1489. The new RS232 interface ICs improve speed, power, voltage supply requirements, and protection over older devices. Further, the new chips are easier to use, requiring fewer external components and may be turned off to a “zero” power supply current condition for use in battery-powered systems.
The new RS232 drivers are implemented in a monolithic bipolar technology. A unique output stage was designed that provides large output swings, ...
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