xr21b1411 Exar Corporation, xr21b1411 Datasheet - Page 2

• Manufacturer Part Number: xr21b1411
• Description: Enhanced 1-ch Full-speed Usb Uart
• Manufacturer: Exar Corporation

XR21B1411
ENHANCED 1-CH FULL-SPEED USB UART
ORDERING INFORMATION
F
F
IGURE
IGURE
5V VCC
USBD+
USBD-
GND
XR21B1411IL16
1. XR21B1411 B
2. P
P
ART
IN
N
O
UMBER
UT
D
USB Slave Interface
Descriptors
IAGRAM
(6MHz – 48MHz)
Programmable
USB
LOCK
Oscillator
Internal
USBD+
D
USBD-
IAGRAM
16-pin QFN
GND
VCC
OTP
P
ACKAGE
13
14
15
16
12 11 10
1
Status and
Fractional
Registers
Internal
Control
16-Pin
BRG
QFN
2
O
PERATING
2
3
UART
4
-40° C to +85° C
9
Modem IO
128-byte
TX FIFO
384-byte
RX FIFO
GPIOs/
T
8
7 GPIO1/CD#
6
5
EMPERATURE
GPIO0/RI#
GPIO2/DSR#
GPIO3/DTR#
R
ANGE
D
1.6V-3.6V VIO_REF
TX
RX
GPIO5/RTS#
GPIO4/CTS#
GPIO3/DTR#
GPIO2/DSR#
GPIO1/CD#
GPIO0/RI#
EVICE
Active
S
TATUS
REV. 1.1.0