XR21V1412IL-0B-EB Exar Corporation, XR21V1412IL-0B-EB Datasheet - Page 4
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XR21V1412IL-0B-EB
Manufacturer Part Number
XR21V1412IL-0B-EB
Description
Interface Modules & Development Tools For XR21V1412 QFN32 USB, RS232;No Cables
Manufacturer
Exar Corporation
Series
-r
Specifications of XR21V1412IL-0B-EB
Interface Type
RS-232, USB
Operating Supply Voltage
3.3 V
Product
Interface Modules
Silicon Core Number
XR21V1412
Application Sub Type
UART
Kit Contents
Board
Main Purpose
Interface, USB 2.0 to UART
Embedded
No
Utilized Ic / Part
XR21V1412IL
Primary Attributes
-
Secondary Attributes
-
Silicon Manufacturer
Exar
Kit Application Type
Communication & Networking
For Use With/related Products
XR21V1412
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
XR21V1412
2-CH FULL-SPEED USB UART
PIN DESCRIPTIONS
Pin Description
UART Channel A Signals
UART Channel B Signals
GPIOA2/DSRA#
GPIOA3/DTRA#
GPIOA4/CTSA#
GPIOA5/RTSA#
GPIOA1/CDA#
GPIOA0/RIA#
GPIOB0/RIB#
N
RXA
RXB
TXA
TXB
AME
32-QFN
P
12
11
10
16
15
22
IN
6
5
9
8
7
#
T
I/O
I/O
I/O
I/O
I/O
I/O
I/O
YPE
O
O
I
I
UART Channel A Receive Data or IR Receive Data. This pin has an internal pull-up
resistor. Internal pull-up resistor is not disabled during suspend mode.
UART Channel A Transmit Data or IR Transmit Data.
UART Channel A general purpose I/O or UART Ring-Indicator input (active low) or
Remote Wakeup Input (
This pin has an internal pull-up resistor which is disabled during suspend mode. If
using this GPIO as an input, an external pull-up resistor is required to minimize the
power consumption in the suspend mode.
UART Channel A general purpose I/O or UART Carrier-Detect input (active low).
This pin has an internal pull-up resistor which is disabled during suspend mode. If
using this GPIO as an input, an external pull-up resistor is required to minimize the
power consumption in the suspend mode.
UART Channel A general purpose I/O or UART Data-Set-Ready input (active low).
See ”Section 1.5.5, Automatic DTR/DSR Hardware Flow Control” on
page 11.
mode. If using this GPIO as an input, an external pull-up resistor is required to mini-
mize the power consumption in the suspend mode.
UART Channel A general purpose I/O or UART Data-Terminal-Ready output (active
low).
on page 11.
pend mode. If using this GPIO as an input, an external pull-up resistor is required to
minimize the power consumption in the suspend mode.
UART Channel A general purpose I/O or UART Clear-to-Send input (active low).
See ”Section 1.5.4, Automatic RTS/CTS Hardware Flow Control” on
page 10.
mode. If using this GPIO as an input, an external pull-up resistor is required to mini-
mize the power consumption in the suspend mode.
UART Channel A general purpose I/O or UART Request-to-Send output (active low).
See ”Section 1.5.4, Automatic RTS/CTS Hardware Flow Control” on
page 10.
mode. If using this GPIO as an input, an external pull-up resistor is required to mini-
mize the power consumption in the suspend mode.
UART Channel B Receive Data or IR Receive Data. This pin has an internal pull-up
resistor. Internal pull-up resistor is not disabled during suspend mode.
UART Channel B Transmit Data or IR Transmit Data.
UART Channel B general purpose I/O or UART Ring-Indicator input (active low).
This pin has an internal pull-up resistor which is disabled during suspend mode. If
using this GPIO as an input, an external pull-up resistor is required to minimize the
power consumption in the suspend mode.
See ”Section 1.5.5, Automatic DTR/DSR Hardware Flow Control”
This pin has an internal pull-up resistor which is disabled during suspend
This pin has an internal pull-up resistor which is disabled during suspend
This pin has an internal pull-up resistor which is disabled during suspend
This pin has an internal pull-up resistor which is disabled during sus-
4
See ”Section 1.5.11, Remote Wakeup” on page 12.
D
ESCRIPTION
REV. 1.1.0
).