RS_232_transmitter_receiver_with_external_power

Published:2009/7/24 11:59:00 Author:Jessie | From:SeekIC

This circuit shows a DS1229 that is connected as a triple RS-232 transmitter/receiver. The DS1229 has two internal charge pumps that are used to generate ±10 V, and six level translators. Three of the translators are RS-232 that convert TTL/CMOS inputs into +9-V RS-232 outputs. The other three translators are RS-232 receivers that convert RS-232 inputs to 5-V TTL/CMOS outputs. Figurd 6-46B shows some typical RS-232 interconnections. Dallas Semiconductors, Product Data Book, 1992/1993, p. 10-33, 10-34.



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