xr20m1280 Exar Corporation, xr20m1280 Datasheet - Page 12

• Manufacturer Part Number: xr20m1280
• Description: I2c/spi Uart With 128-byte Fifo And Integrated Level Shifters
• Manufacturer: Exar Corporation

XR20M1280
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
F
IGURE
11. XR20M1280 T
U A R T
YPICAL
UART
VCC_UART
V C C _ U A R T
S
RTS#
DTR#
DSR#
CTS#
ERIAL
GND
CD#
D S R #
RI #
D T R #
R TS #
C TS #
G N D
TX
RX
C D #
R I#
TX
R X
RS-485 Half-Duplex Serial Interface
I
NTERFACE
NC
Infrared C o nn ectio n
VCC_UART
PRELIMINARY
N C
N C
VCC_UART
V C C _U A R T
C
12
ONNECTIONS
V C C _U A R T
DI
RO
DE
RE#
Transceiver
Half-duplex
RS-485
Transceiver
TX D
R X D
IR
Y
Z
A
B
REV. P1.1.1