USB7006SLASHKDX datasheet(10/56 Pages) MICROCHIP

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USB7006

DS00003715B-page 10

 2022 Microchip Technology Inc. and its subsidiaries

3.2

Pin Descriptions

This section contains descriptions of the various USB7006 pins. The “_N” symbol in the signal name indicates that the

active, or asserted, state occurs when the signal is at a low voltage level. For example, RESET_N indicates that the

reset signal is active low. When “_N” is not present after the signal name, the signal is asserted when at the high voltage

level.

The terms assertion and negation are used exclusively. This is done to avoid confusion when working with a mixture of

“active low” and “active high” signal. The term assert, or assertion, indicates that a signal is active, independent of

whether that level is represented by a high or low voltage. The term negate, or negation, indicates that a signal is inac-

tive.

The “If Unused” column provides information on how to terminate pins if they are unused in a customer design.

Buffer type definitions are detailed in Section 1.2, Buffer Types.

Note:

100kOhm is the recommended value any time a weak pull-down or pull-up resistor is called for.

TABLE 3-1:

PIN DESCRIPTIONS

Name

Symbol

Buffer

Type

Description

If Unused

USB 3.2 Gen 1 Interfaces

Upstream USB

3.2 Gen 1 TX D+

USB3UP_TXDP

I/O-U

Upstream USB 3.2 Gen 1 Transmit Data

Plus.

Float

Upstream USB

3.2 Gen 1 TX D-

USB3UP_TXDM

I/O-U

Upstream USB 3.2 Gen 1 Transmit Data

Minus.

Float

Upstream USB

3.2 Gen 1 RX D+

USB3UP_RXDP

I/O-U

Upstream USB 3.2 Gen 1 Receive Data

Plus.

Weak pull-

down to

GND

Upstream USB

3.2 Gen 1 RX D-

USB3UP_RXDM

I/O-U

Upstream USB 3.2 Gen 1 Receive Data

Minus.

Weak pull-

down to

GND

Downstream

Ports 1-5 USB

3.2 Gen 1 TX D+

USB3DN_TXDP[1:5]

I/O-U

Downstream SuperSpeed+ Transmit Data

Plus, ports 1 through 5.

Float

Downstream

Ports 1-5 USB

3.2 Gen 1 TX D-

USB3DN_TXDM[1:5]

I/O-U

Downstream SuperSpeed+ Transmit Data

Minus, ports 1 through 5.

Float

Downstream

Ports 1-5 USB

3.2 Gen 1 RX D+

USB3DN_RXDP[1:5]

I/O-U

Downstream SuperSpeed+ Receive Data

Plus, ports 1 through 5.

Weak pull-

down to

GND

Downstream

Ports 1-5 USB

3.2 Gen 1 RX D-

USB3DN_RXDM[1:5]

I/O-U

Downstream SuperSpeed+ Receive Data

Minus, ports 1 through 5.

Weak pull-

down to

GND

USB 2.0 Interfaces

Upstream USB

2.0 D+

USB2UP_DP

I/O-U

Upstream USB 2.0 Data Plus (D+).

Mandatory

Note 3-5

Upstream USB

2.0 D-

USB2UP_DM

I/O-U

Upstream USB 2.0 Data Minus (D-).

Mandatory

Note 3-5

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