USB7216CSLASHKDX datasheet(16/60 Pages) MICROCHIP

16 / 60 page

USB7216C

DS00003851A-page 16



2021 Microchip Technology Inc.

Note 3-9

Configuration strap values are latched on Power-On Reset (POR) and the rising edge of

RESET_N

(external chip reset). Configuration straps are identified by an underlined symbol name. Signals that

function as configuration straps must be augmented with an external resistor when connected to a

load. For additional information, refer to Section 3.3, Configuration Straps and Programmable

Functions.

Note 3-10

Pin use is mandatory. Cannot be left unused.

Battery Charging

Configuration

Strap

CFG_BC_EN

I/O12

Battery Charging Configuration Strap.

This configuration strap controls the number

of BC 1.2 enabled downstream ports. See

Note 3-10.

Note 3-8

Mandatory if external SPI

memory is not used for

firmware e xe cu tion . If

external SPI memory is

us ed

fo r

firmwa re

ex ec utio n,

the n

configuration strap resistor

should be omitted.

Mandatory

Note 3-9

Device Mode

Configuration

Straps 3-1

CFG_STRAP[3:1]

Device Mode Configuration Straps 3-1.

These configuration straps are used to

select the device’s mode of operation. See

Note 3-10.

Mandatory

Note 3-9

Power/Ground

+3.3V I/O Power

Supply Input

VDD33

+3.3 V power and internal regulator input.

Mandatory

Note 3-9

Digital Core

Power Supply

Input

VCORE

Digital core power supply input.

Mandatory

Note 3-9

Ground

VSS

Common ground.

This exposed pad must be connected to the

ground plane with a via array.

Mandatory

Note 3-9

TABLE 3-1:

PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

If Unused

USB7216C/KDX 数据表(PDF) 16 Page - Microchip Technology

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USB7216C/KDX 数据表(PDF) 16 Page - Microchip Technology

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