XR28V384IM48-0A-EB Datasheet, PDF (17/42 Pages) Exar Corporation – XR28V384 3.3V QUAD LPC UART WITH 128-BYTE FIFO

XR28V384
REV. 1.0.0
3.3V QUAD LPC UART WITH 128-BYTE FIFO
1.5 Serial Transceiver Interface
The V384 is typically used with RS-232, RS-485 and IR transceivers. The following figure shows typical
connections from the UART to the different transceivers. For more information on RS-232 and RS-485/422
transceivers, go to www.exar.com or send an e-mail to [e-mail].
FIGURE 9. XR28V384 TYPICAL SERIAL INTERFACE CONNECTIONS
VCC
UART
TX
RX
DTR#
RTS#
CTS#
DSR#
CD#
R I#
GND
VCC
R S -232
T ransceiver
T1 IN
R1OUT
T 2IN
T 3IN
R2OUT
R3OUT
R4OUT
R5OUT
GND
R S -232 F ull-M od em S erial In terface
VCC
UART
TX
RX
RTS#
DTR#
CTS#
DSR#
CD#
RI #
VCC
NC
VCC
NC
RS-485
Transceiver _TX+
DI ^Full-duplex
RO
TX-
VCC
DE
RE#
RX+
RX-
GND
RS-485 Full-Duplex Serial Interface
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