XR21V1410IL16 EXAR [Exar Corporation], XR21V1410IL16 Datasheet - Page 3

• Manufacturer Part Number: XR21V1410IL16
• Description: 1-CH FULL-SPEED USB UART
• Manufacturer: EXAR [Exar Corporation]

REV. 1.0.0
PIN DESCRIPTIONS
Pin Description
UART Signals
USB Interface Signals
I2C Interface Signals
GPIO2/DSR#
GPIO3/DTR#
GPIO4/CTS#
GPIO5/RTS#
GPIO1/CD#
GPIO0/RI#
USBD+
USBD-
N
SDA
RX
TX
AME
16-QFN
P
10
15
14
IN
11
9
8
7
6
5
4
3
#
T
OD
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
YPE
O
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.
General purpose I/O or UART Ring-Indicator input (active low). This pin
has an internal pull-up resistor. Internal pull-up resistor is disabled during
suspend mode. If using this GPIO as an input, a pull-up resistor is
required to minimize the power consumption in the suspend mode.
General purpose I/O or UART Carrier-Detect input (active low). This pin
has an internal pull-up resistor. Internal pull-up resistor is disabled during
suspend mode. If using this GPIO as an input, a pull-up resistor is
required to minimize the power consumption in the suspend mode.
General purpose I/O or UART Data-Set-Ready input (active low). This
pin has an internal pull-up resistor. Internal pull-up resistor is disabled
during suspend mode. If using this GPIO as an input, a pull-up resistor
is required to minimize the power consumption in the suspend mode.
General purpose I/O or UART Data-Terminal-Ready output (active low).
This pin has an internal pull-up resistor. Internal pull-up resistor is dis-
abled during suspend mode. If using this GPIO as an input, a pull-up
resistor is required to minimize the power consumption in the suspend
mode.
General purpose I/O or UART Clear-to-Send input (active low). This pin
has an internal pull-up resistor. Internal pull-up resistor is disabled during
suspend mode. If using this GPIO as an input, a pull-up resistor is
required to minimize the power consumption in the suspend mode.
General purpose I/O or UART Request-to-Send output (active low). This
pin has an internal pull-up resistor. Internal pull-up resistor is disabled
during suspend mode. If using this GPIO as an input, a pull-up resistor
is required to minimize the power consumption in the suspend mode.
USB port differential data plus. This pin has a 1.5 K Ohm internal pull-up
resistor.
USB port differential data minus.
I
required. An optional external I
default configurations upon power-up including the USB Vendor ID and
Device ID.
If an EEPROM is not used, this pin can be used with the SCL pin to
select the Remote Wake-up and Power modes. An external pull-up or
pull-down resistor is required. See
2
C-controller data input/output (open-drain). 1K pull-up resistor is
3
D
ESCRIPTION
2
C EEPROM can be used to store
Table 1
1-CH FULL-SPEED USB UART
XR21V1410