USB7252PSLASHKDX datasheet(7/64 Pages) MICROCHIP

7 / 64 page

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2018 - 2020 Microchip Technology Inc.

DS00003561A-page 7

USB7252P

The USB7252P requires an external SPI Flash memory device for USB Power Delivery operation. A Firmware image

must be loaded to the external SPI Flash memory device before USB Power Delivery can become functional. The inter-

nal ROM firmware image does not include any USB Power Delivery support and exists only to facilitate the programming

of the SPI Flash (via upstream USB port) during production and manufacturing. Custom OEM configurations are sup-

ported through external SPI ROM or OTP ROM. All port control signal pins are under firmware control in order to allow

for maximum operational flexibility and are available as GPIOs for customer specific use.

The USB7252P is available in commercial (0°C to +70°C) and industrial (-40°C to +85°C) temperature range. An internal

block diagram of the USB7252P in an upstream Type-C application is shown in Figure 2-1.

FIGURE 2-1:

USB7252P INTERNAL BLOCK DIAGRAM - UPSTREAM TYPE-C APPLICATION

Note:

All port numbering in this document is LOGICAL port numbering with the device in the default configuration.

LOGICAL port numbering is the numbering as communicated to the USB host. It is the end result after any

port number remapping or port disabling. The PHYSICAL port number is the port number with respect to

the physical PHY on the chip. PHYSICAL port numbering is fixed and the settings are not impacted by

LOGICAL port renumbering/remapping. Certain port settings are made with respect to LOGICAL port num-

bering, and other port settings are made with respect to PHYSICAL port numbering. Refer to the “Config-

uration of USB7202/USB7206/USB725x” application note for details on the LOGICAL vs. PHYSICAL

mapping and additional configuration details.

Hub Controller Logic

I2C/SPI

25 Mhz

USB3 USB2

‘A’

USB7252P

PHY0

+3.3 V

VCORE

‘A’

PHY5

PHY2

PHY5

PHY1

PHY2

‘B’

PHY1

‘A’

PHY3

PHY4

‘B’

PHY3

‘A’

PHY0

‘C’

X-BAR

MUX

Alternate

Mode

UPD3x0

PD Power

Up to

100W

VBUS

‘C’

Hub Feature Controller

GPIO SMB

OTP

SPI

UART

Mux

HFC

PHY

SQI

SPI

Flash

Memory

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