XR21V1412IL32-F Exar Corporation, XR21V1412IL32-F Datasheet - Page 4

• Manufacturer Part Number: XR21V1412IL32-F
• Description: IC UART FIFO USB DUAL 32QFN
• Manufacturer: Exar Corporation
• Type: USB UARTsr

Specifications of XR21V1412IL32-F

• Package / Case: 32-VFQFN Exposed Pad
• Features: *
• Number Of Channels: 2, DUART
• Fifo's: 128 Byte, 384 Byte
• Protocol: USB 2.0
• Voltage - Supply: 2.97 V ~ 3.63 V
• With Auto Flow Control: Yes
• Mounting Type: Surface Mount
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Current: 16 mA
• Operating Supply Voltage: 2.97 V to 3.63 V
• No. Of Channels: 2
• Data Rate: 12Mbps
• Uart Features: Automatic Hardware And Software Flow Control, Half-Duplex Mode, Fractional Baud Rate Generator
• Supply Voltage Range: 2.97V To 3.63V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 1016-1301 - EVAL BOARD FOR XR21V1412IL
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 1016-1302

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
).