xr16v2650im Exar Corporation, xr16v2650im Datasheet - Page 4
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xr16v2650im
Manufacturer Part Number
xr16v2650im
Description
High Performance Duart With 32-byte Fifo
Manufacturer
Exar Corporation
Datasheet
1.XR16V2650IM.pdf
(47 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
xr16v2650im-F
Manufacturer:
Exar Corporation
Quantity:
10 000
XR16V2650
HIGH PERFORMANCE DUART WITH 32-BYTE FIFO
Pin Description
MODEM OR SERIAL I/O INTERFACE
RXRDYB#
DSRA#
RTSA#
CTSA#
DTRA#
OP2A#
CDA#
N
RIA#
TXA
RXA
TXB
RXB
AME
32-QFN
P
23
25
IN
5
4
6
3
-
-
-
-
-
-
#
48-TQFP
P
18
33
38
34
39
40
41
32
IN
7
5
8
4
#
T
YPE
O
O
O
O
O
O
I
I
I
I
I
I
UART channel B Receiver Ready (active low). This output provides the
RX FIFO/RHR status for receive channel B. See
used, leave it unconnected.
UART channel A Transmit Data or infrared encoder data. Standard
transmit and receive interface is enabled when MCR[6] = 0. In this
mode, the TX signal will be HIGH during reset or idle (no data). Infrared
IrDA transmit and receive interface is enabled when MCR[6] = 1. In the
Infrared mode, the inactive state (no data) for the Infrared encoder/
decoder interface is LOW. If it is not used, leave it unconnected.
UART channel A Receive Data or infrared receive data. Normal receive
data input must idle HIGH. If this pin is not used, tie it to VCC or pull it
high via a 100k ohm resistor.
UART channel A Request-to-Send (active low) or general purpose out-
put. This output must be asserted prior to using auto RTS flow control,
see EFR[6], MCR[1], and IER[6].
UART channel A Clear-to-Send (active low) or general purpose input.
It can be used for auto CTS flow control, see EFR[7], and IER[7]. This
input should be connected to VCC when not used.
UART channel A Data-Terminal-Ready (active low) or general purpose
output. If it is not used, leave it unconnected.
UART channel A Data-Set-Ready (active low) or general purpose input.
This input should be connected to VCC when not used. This input has
no effect on the UART.
UART channel A Carrier-Detect (active low) or general purpose input.
This input should be connected to VCC when not used. This input has
no effect on the UART.
UART channel A Ring-Indicator (active low) or general purpose input.
This input should be connected to VCC when not used. This input has
no effect on the UART.
Output Port 2 Channel A - The output state is defined by the user and
through the software setting of MCR[3]. INTA is set to the active mode
and OP2A# output LOW when MCR[3] is set to a logic 1. INTA is set to
the three state mode and OP2A# output HIGH when MCR[3] is set to a
logic 0. See MCR[3]. If INTA is used, this output should not be used as
a general output else it will disturb the INTA output functionality.
UART channel B Transmit Data or infrared encoder data. Standard
transmit and receive interface is enabled when MCR[6] = 0. In this
mode, the TX signal will be HIGH during reset or idle (no data). Infrared
IrDA transmit and receive interface is enabled when MCR[6] = 1. In the
Infrared mode, the inactive state (no data) for the Infrared encoder/
decoder interface is LOW. If it is not used, leave it unconnected.
UART channel B Receive Data or infrared receive data. Normal receive
data input must idle HIGH. If this pin is not used, tie it to VCC or pull it
high via a 100k ohm resistor.
4
D
ESCRIPTION
Table 2
. If it is not
REV. 1.0.2