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USB7252/KDX 数据表(PDF) 10 Page - Microchip Technology |
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USB7252/KDX 数据表(HTML) 10 Page - Microchip Technology |
10 / 65 page ![]() USB7252 DS00002736D-page 10 2018 - 2020 Microchip Technology Inc. 3.2 Pin Descriptions This section contains descriptions of the various USB7252 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. TABLE 3-1: PIN DESCRIPTIONS Name Symbol Buffer Type Description If Unused USB 3.2 Gen 2 Interfaces Upstream USB 3.2 Gen 2 TX D+ USB3UP_TXDP I/O-U Upstream USB 3.2 Gen 2 Transmit Data Plus. Float Upstream USB 3.2 Gen 2 TX D- USB3UP_TXDM I/O-U Upstream USB 3.2 Gen 2 Transmit Data Minus. Float Upstream USB 3.2 Gen 2 RX D+ USB3UP_RXDP I/O-U Upstream USB 3.2 Gen 2 Receive Data Plus. Weak pull- down to GND Upstream USB 3.2 Gen 2 RX D- USB3UP_RXDM I/O-U Upstream USB 3.2 Gen 2 Receive Data Minus. Weak pull- down to GND Downstream Port 1 USB 3.2 Gen 2 TX D+ Orientation A USB3DN_TXDP1A I/O-U Downstream USB Type-C® “Orientation A” SuperSpeed+ Transmit Data Plus, port 1. Float Downstream Port 1 USB 3.2 Gen 2 TX D- Ori- entation A USB3DN_TXDM1A I/O-U Downstream USB Type-C “Orientation A” SuperSpeed+ Transmit Data Minus, port 1. Float Downstream Port 1 USB 3.2 Gen 2 RX D+ Orientation A USB3DN_RXDP1A I/O-U Downstream USB Type-C “Orientation A” SuperSpeed+ Receive Data Plus, port 1. Weak pull- down to GND Downstream Port 1 USB 3.2 Gen 2 RX D- Orientation A USB3DN_RXDM1A I/O-U Downstream USB Type-C “Orientation A” SuperSpeed+ Receive Data Minus, port 1. Weak pull- down to GND Downstream Port 1 USB 3.2 Gen 2 TX D+ Orientation B USB3DN_TXDP1B I/O-U Downstream USB Type-C “Orientation B” SuperSpeed+ Transmit Data Plus, port 1. Float |
类似零件编号 - USB7252/KDX |
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类似说明 - USB7252/KDX |
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