USB3500 datasheet(9/45 Pages) MICROCHIP

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 2005 - 2016 Microchip Technology Inc.

DS00002103A-page 9

USB3500

DATA[7]

I/O,

CMOS,

Pull-low

N/A

8-bit bi-directional data bus. Data[7] is the MSB and

Data[0] is the LSB.

DATA[6]

I/O,

CMOS,

Pull-low

N/A

DATA[5]

I/O,

CMOS,

Pull-low

N/A

DATA[4]

I/O,

CMOS,

Pull-low

N/A

DATA[3]

I/O,

CMOS,

Pull-low

N/A

DATA[2]

I/O,

CMOS,

Pull-low

N/A

DATA[1]

I/O,

CMOS,

Pull-low

N/A

DATA[0]

I/O,

CMOS,

Pull-low

N/A

VSS

Ground

N/A

PHY ground.

RXVALID

Output

High

Receive Data Valid. Indicates that the DATA bus has

received valid data. The Receive Data Holding

expected to register the DATA bus on the next rising

edge of CLKOUT.

SESSVLD

Output

High

Session Valid. Indicates that the voltage on Vbus is

above the indicated threshold.

0: VBUS < VSessVld

1: VBUS > VSessVld

DPPD

Input

N/A

DP Pull-down Select. This signal enables the 15k

Ohm pull-down resistor on the DP line.

0: Pull-down resistor not connected to DP

1: Pull-down resistor connected to DP

DMPD

Input

N/A

DM Pull-down Select. This signal enables the 15k

Ohm pull-down resistor on the DM line.

0: Pull-down resistor not connected to DM

1: Pull-down resistor connected to DM

RXERROR

Output

High

Receive Error. This output is clocked with the same

timing as the receive DATA lines and can occur at

anytime during a transfer.

0: Indicates no error.

1: Indicates a receive error has been detected.

VSS

Ground

N/A

PHY ground.

VBUSVLD

Output

High

VBUS Valid. Indicates that the voltage on Vbus is

above the indicated threshold.

0: VBUS < VVbusVld

1: VBUS > VVbusVld

VDD3.3

N/A

3.3V PHY Supply. Provides power for USB 2.0

Transceiver, UTMI+ Digital, Digital I/O, and

Regulators.

TABLE 2-1:

USB3500 PIN DEFINITIONS (CONTINUED)

Name

Direction,

Type

Active

Level

Description

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