Datasheet

 2010 - 2015 Microchip Technology Inc. DS00001692C-page 11
USB251xB/xBi
PRTPWR1 USB Port Power
Enable
12
PRTPWR2 16
PRTPWR3 -18
PRTPWR4 -20
RBIAS USB Transceiver
Bias
35
RESET_N Reset Input 26
SCL Serial Clock 24
SDA Serial Data Signal 22
SMBCLK System
Management Bus
Clock
24
SMBDATA System
Management Bus
Data Signal
22
SUSP_IND Active/Suspend
Status Indicator
28
TEST Test Pin 11
USBDM_UP USB Bus Data 30
USBDP_UP 31
USBDM_DN1 Hi-Speed USB Data 1
USBDM_DN2 3
USBDM_DN3 -6
USBDM_DN4 -8
USBDP_DN1 2
USBDP_DN2 4
USBDP_DN3 -7
USBDP_DN4 -9
VBUS_DET Upstream VBUS
Power Detection
27
VDD33 3.3 V Digital Power 15
VDD33 23
VDDA33 3.3 V Analog Power 5
VDDA33 10
VDDA33 29
VDDA33 36
XTALIN Crystal Input 33
XTALOUT Crystal Output 32
TABLE 3-1: USB251XB/XBI PIN LIST (ALPHABETICAL) (CONTINUED)
Symbol Name
Pin Numbers
USB2512B
USB2512Bi
USB2513B
USB2513Bi
USB2514B
USB2514Bi