DS14C535_15 Datasheet, PDF (7/14 Pages) Texas Instruments – +5V Supply EIA/TIA-232 3 x 5 Driver/Receiver

DS14C535
www.ti.com
SNLS092C – MAY 1998 – REVISED APRIL 2013
APPLICATION INFORMATION
In a typical Data Terminal Equipment (DTE) to Data Circuit-Terminating Equipment (DCE) 9-pin de-facto
interface implementation, 2 data lines and 6 control lines are required. The data lines are TXD and RXD and the
control lines are RTS, DTR, DSR, DCD, CTS and RI. The DS14C535 is a 3 x 5 Driver/Receiver and offers a
single chip solution for the DTE interface as shown in Figure 11.
Ring Indicator (RI) is used to inform the DTE that an incoming call is coming from a remote DCE. When the
DS14C535 is in SHUTDOWN (SD) mode, receiver five (R5) remains active and monitors RI circuit. This active
receiver (R5) alerts the DTE to switch the DS14C535 from SHUTDOWN to active mode.
To achieve minimum power consumption, the DS14C535 can be in SHUTDOWN mode and only activated when
communications are needed.
Figure 11. Typical DTE Application
Capacitors
Capacitors can be ceramic or tantalum. Standard surface mount in the range of 0.1 μF to 0.68 μF are readily
available from several manufacturers. A minimum 20V rating is recommended. Contact manufacturers for
specific detail on surface mounting and dielectrics. A partial list of manufacturers include:
Manufacturer
KEMET
AVX
MURATA-ERIE
Phone Number
803-963-6300
803-448-9411
800-831-9172
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Product Folder Links: DS14C535
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