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XR16M780 Datasheet(PDF) 9 Page - Exar Corporation

Part # XR16M780
Description  1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XR16M780 Datasheet(HTML) 9 Page - Exar Corporation

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XR16M780
9
REV. 1.0.0
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
2.2
Serial Interface
The M780 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 uarttechsupport@exar.com.
FIGURE 5. XR16M780 TYPICAL SERIAL INTERFACE CONNECTIONS
VCC
VCC
RS-485 Full-Duplex Serial Interface
GND
CD#
DSR#
CTS#
DTR#
RTS#
RX
TX
DI
RO
UART
RS-485
Transceiver
Full-duplex
TX+
TX-
RX+
RX-
RI #
NC
NC
VCC
DE
RE#
VCC
VC C
VC C
R S - 2 3 2 F u ll - M o d e m S e r ia l In t e r f a c e
GN D
RI#
CD #
DS R#
CT S #
RT S #
DT R#
RX
TX
T1 IN
R1 O U T
T2 IN
T3 IN
R2 O U T
R3 O U T
R4 O U T
R5 OU T
GN D
UA RT
R S -232
T r ans c e iv e r


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