XR21B1421 Datasheet, PDF (4/50 Pages) Exar Corporation – Enhanced 1-Ch Full-Speed

Pin Configuration
XR21B1421
GPIO0/CLK 1
GND 2
USBD+ 3
USBD- 4
VIO 5
VCC 6
Exar
XR21B1421
E_PAD
18 GPIO5/RXT
17 USB_STAT2
16 NC
15 GPIO6/CD#
14 GPIO7/RI#/RWK#
13 GPIO8/DTR#
GPIO3/RS485 1
GPIO0/CLK 2
GND 3
USBD+ 4
USBD- 5
VCC 6
VCC_REG 7
Exar
XR21B1421
E_PAD
21 NC
20 NC
19 GPIO6/CD#
18 NC
17 GPIO7/RI#/RWK#
16 GPIO8/DTR#
15 TEST#
24-Pin
Top View
28-Pin
Top View
© 2014 Exar Corporation
4 / 50
exar.com/XR21B1421
Rev 1B