XR16M890IL32 datasheet(11/63 Pages) EXAR

Part #	XR16M890IL32

Description	UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS

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Manufacturer	EXAR [Exar Corporation]

Direct Link	http://www.exar.com

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XR16M890

11

REV. 1.0.0

UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS

1.2

Serial Interface

The M890 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 7. XR16M890 TYPICAL SERIAL INTERFACE CONNECTIONS

VCC_UART

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

VCC_UART

DE

RE#

VCC_UART

V C C_ UA RT

VC C _ U AR T

R S -232 F u ll-M o d em S erial In ter face

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 UT

R4 O UT

R5 O U T

GN D

UA R T

R S -232

T rans c eiv er

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XR16M890IL32 Datasheet(PDF) 11 Page - Exar Corporation

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