DS14C238 Single Supply TIA/EIA-232 4 x 4 Driver/Receiver
July 2002
DS14C238
Single Supply TIA/EIA-232 4 x 4 Driver/Receiver
General Description
The DS14C238 is a four driver, four receiver device which
conforms to the TIA/EIA-232-E standard and CCITT V.28
recommendations. This device eliminates
±
12V supplies by
employing an internal DC-DC converter to generate the nec-
essary output levels from a single +5V supply. Driver slew
rate control and receiver noise filtering have also been inter-
nalized to eliminate the need for external slew rate control
and noise filtering capacitors.
Features
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Conforms to TIA/EIA-232-E and CCITT V.28
Internal DC-DC converter
Operates with single +5V supply
Low power requirement — I
CC
10 mA max
Internal driver slew rate control
Receiver noise filtering
Operates above 120 kbits/sec
Direct replacement for MAX238
Connection Diagram
Functional Diagram
01128201
Order Number DS14C238WM, DS14C238WMX
See NS Package Number M24B
01128202
© 2002 National Semiconductor Corporation
DS011282
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