XR16C864CQ(2004) Ver la hoja de datos (PDF) - Exar Corporation

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XR16C864CQ
(Rev.:2004)

2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO

Exar Corporation 

áç

REV. 2.0.1

XR16C864

2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO

FIGURE 12. INTERNAL LOOP BACK IN CHANNELS A-D

Transmit Shift Register

(THR/FIFO)

VCC

MCR bit-4=1

Receive Shift Register

(RHR/FIFO)

VCC

RTS#

CTS#

VCC

DTR#

DSR#

VCC

OP1#

RI#

VCC

OP2#

CD#

TX A-D

RX A-D

RTS# A-D

CTS# A-D

DTR# A-D

DSR# A-D

OP1# A-D/RS485

RI# A-D

OP2# A-D

CD# A-D

21

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