CYUSB3302 データシートの表示（PDF） - Cypress Semiconductor

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CYUSB3302

HX3 USB 3.0 Hub

Cypress Semiconductor 

CYUSB330x

CYUSB331x

CYUSB332x

Table 3. 88-Pin QFN Pinout (continued)

Pin Name

CYUSB3314

Type

CYUSB3312 CYUSB3326

Pin#

Description

CYUSB3328

SUSPEND

I/O

Hub suspend status indicator. This pin is asserted if both the SS and USB 2.0

25

hubs are in the suspend state and is de-asserted when either of the hubs comes

out of the suspend state.

Power and Ground

VDD_EFUSE

AVDD12

PWR

PWR

24

1.2 V normal operation, 2.5 V for programming

15, 21, 44,

56, 62, 67

1.2 V analog supply

GND

DVDD12

VBUS _US

VBUS_DS

AVDD33

VDD_IO

PWR

PWR

PWR

PWR

PWR

PWR

50

8, 12, 18,

33, 47, 53,

59, 83

22

23

9, 70, 75,

80

34, 66, 88

GND pin

1.2 V core supply

CYUSB3328: Connect the VBUS_US pin to the local 5 V supply. If ACA-Dock

mode is disabled using Configuration Options on page 17, this pin must be

connected to VBUS from US port.

Other part numbers: This pin must be connected to VBUS from US port.

This pin is used to power the Apple-charging circuit in HX3.

For BC v1.2 compliance testing, connect pin to GND. For normal operation,

connect pin to local 5 V supply.

3.3 V analog supply

3.3 V I/O supply

USB Precision Resistors

RREF_USB2

RREF_SS

A

7

Connect pin to a precision resistor (6.04 k ±1%) to generate a current reference

for USB 2.0 PHY.

A

32

Connect pin to a precision resistor (200  ±1%) for SS PHY termination

impedance calibration.

Document Number: 001-73643 Rev. *G

Page 16 of 33

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