xr16m670 Exar Corporation, xr16m670 Datasheet - Page 7

• Manufacturer Part Number: xr16m670
• Description: 1.62v To 3.63v High Performance Uart With 32-byte Fifo
• Manufacturer: Exar Corporation

REV. 1.0.0
The M670 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,
check www.exar.com or contact with uarttechsupport @exar.com.
F
2.2
IGURE
4. XR16M670 T
Serial Interface
UART
YPICAL
U A R T
DTR#
RTS#
DSR#
CTS#
GND
S
CD#
VCC
RI #
TX
RX
ERIAL
R S - 2 3 2 F u ll -M o d e m S e r ia l In te r fa c e
D T R #
D S R #
R T S #
C T S #
RS-485 Full-Duplex Serial Interface
G N D
C D #
V C C
R I#
T X
R X
I
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
NTERFACE
NC
NC
VCC
V C C
C
VCC
ONNECTIONS
7
VCC
DI
RO
DE
RE#
Transceiver
Full-duplex
T r a n s c e iv e r
R 1 O U T
T 1 IN
T 2 IN
T 3 IN
R 5 O U T
R 2 O U T
R 3 O U T
R 4 O U T
G N D
RS-485
R S -2 3 2
TX+
TX-
RX+
RX-
XR16M670