
XR21V1410
2
1-CH FULL-SPEED USB UART
REV. 1.4.0
NOTE: TR = Tape and Reel, MTR = Mini Tape and Reel, F = Green / RoHS
FIGURE 1. XR21V1410 BLOCK DIAGRAM
FIGURE 2. PIN OUT ASSIGNMENT
ORDERING INFORMATION
PART NUMBER
PACKAGE
OPERATING TEMPERATURE RANGE
DEVICE STATUS
XR21V1410IL16-F
16-pin QFN
-40°C to +85°C
Active
XR21V1410IL16TR-F
16-pin QFN
-40°C to +85°C
Active
XR21V1410IL16MTR-F
16-pin QFN
-40°C to +85°C
Active
USB Slave
Interface
128- byte
TX FIFO
GPIOs/
Modem IO
TX
RX
Internal
48MHz
Oscillator
USBD+
USBD-
384- byte
RX FIFO
GPIO5/RTS#/RS485
GPIO4/CTS#
GPIO3/DTR#
GPIO2/DSR#
GPIO1/CD#
GPIO0/RI#/RWK#
UART
Fractional
BRG
Internal
Status and
Control
Registers
3.3V VCC
GND
I
2 C
Interface
SDA
SCL
16-Pin
QFN
GPIO5/RTS#/RS485
GPIO4/CTS#
LOWPOWER
GND
G
P
IO
1
/C
D
#
G
P
IO
0
/R
I#
/R
W
K
#
G
P
IO
2
/D
S
R
#
G
P
IO
3
/D
T
R
#
16 15 14 13
4
1
3
2
U
S
B
D
-
G
N
D
U
S
B
D
+
V
C
RX
TX
SDA
SCL
5
6
7
8
9
12
10
11