USB4715

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2022 Microchip Technology Inc. and its subsidiaries

2.0

INTRODUCTION

2.1

General Description

The Microchip USB4715 USB 2.0 Hi-Speed hub controller is a single-chip device targeted for automotive, industrial, and

commercial applications. Primary functions of the device include: multiple downstream USB ports supporting USB 2.0

Low Speed/Full Speed/Hi-Speed, single USB 2.0 Hi-Speed upstream connection to a USB host / OTG port, battery

charging support for BC1.2, Apple and China charging profiles, USB I/O bridging, and an on-chip microcontroller.

The USB4715 employs unique FlexConnect USB functionality, whereby one of the downstream ports can be reconfig-

ured to become an upstream port, allowing the host or master capability to be switched to equipment on any of the other

ports. This port/host becomes the master of the new USB bus, while the other ports can connect as USB devices, or

become dedicated charging ports.

The USB4715 is available in commercial (0°C to +70°C), industrial and Automotive Grade 3 (-40°C to +85°C) tempera-

ture ranges. An internal block diagram of the USB4715 is shown in Figure 2-1.

FIGURE 2-1:

INTERNAL BLOCK DIAGRAM

USB4715

25 MHz

3.3V

FlexHub Controller

Flex

Port 1

Flex

Port 2

Flex

Port 3

Flex

Port 4

USB

Flex USB 2.0

USB

USB

USB

Hub Feature

Controller

I/O Multiplexer

I

UART/GPIO

OTP

I/O

USB Host / OTG Port 0