Hi-Speed USB Transceiver with 1.8V-3.3V ULPI Interface - 26MHz Reference Clock

SMSC USB3317

7

Revision 1.3 (11-02-07)

PRODUCT PREVIEW

22

B2

RESETB

Input,

CMOS,

N/A

When low, the part is suspended with all

of the I/O tri-stated. When high the

USB3317 will operate as a normal ULPI

device.

23

A2

REFCLK

Input,

CMOS

N/A

26MHz Reference Clock input.

24

A1

RBIAS

Analog,

CMOS

N/A

Rbias pin. This pin requires an 8.06k

Ω

(±1%) resistor to ground, placed as close

as possible to the USB3317.

FLAG

C3

GND

Ground

N/A

Ground.

QFN only: The flag should be connected

to the ground plane with a via array

under the exposed flag. This is the main

ground for the IC.

Table 1 USB3317 Pin Description (continued)