XR20M1280L32-0B Datasheet, PDF (12/63 Pages) Exar Corporation – I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS

XR20M1280
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
FIGURE 11. XR20M1280 TYPICAL SERIAL INTERFACE CONNECTIONS
VCC_UART
VCC_UART
UART
TX
RX
RTS#
DTR#
CTS#
DSR#
CD#
RI #
VCC_UART
NC
GND
RS-485
Transceiver Y
DI
Half-duplex
RO
Z
DE
RE#
A
B
RS-485 Half-Duplex Serial Interface
REV. 1.0.0
VCC_UART
VCC_UART
TX
RX
DTR#
NC
UART ^RTS#
NC
CTS#
DSR#
CD#
R I#
GND
VCC_UART
IR
Transceiver
TXD
RXD
Infrared Connection
12