MSP432P411VIPZ datasheet(197/212 Pages) TI1

197 / 212 page

LFXIN

HFXIN

LFXOUT

HFXOUT

Digital

Power Supply

Decoupling

100 nF

4.7 F

Analog

Power Supply

Decoupling

DVCC

DVSS

AVCC

AVSS

100 nF

4.7 F

197

MSP432P4111, MSP432P4011, MSP432P411Y

MSP432P401Y, MSP432P411V, MSP432P401V

www.ti.com

SLASEA0A – DECEMBER 2017 – REVISED FEBRUARY 2018

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Product Folder Links: MSP432P4111 MSP432P4011 MSP432P411Y MSP432P401Y MSP432P411V MSP432P401V

Applications, Implementation, and Layout

NOTE

Information in the following Applications section is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI's customers are responsible for

determining suitability of components for their purposes. Customers must validate and test

their design implementation to confirm system functionality.

7.1

Device Connection and Layout Fundamentals

This section describes the recommended guidelines when designing with the MSP432 microcontrollers.

These guidelines are to make sure that the device has proper connections for powering, programming,

debugging, and optimum analog performance.

7.1.1

Power Supply Decoupling and Bulk Capacitors

TI recommends connecting a combination of a 4.7-µF plus a 100-nF low-ESR ceramic decoupling

capacitor to each AVCC and DVCC pin (see Figure 7-1). Higher-value capacitors may be used but can

affect supply rail ramp-up time. Decoupling capacitors must be placed as close as possible to the pins that

they decouple (within a few millimeters). Additionally, TI recommends separated grounds with a single-

point connection for better noise isolation from digital-to-analog circuits on the board and to achieve high

analog accuracy.

Figure 7-1. Power Supply Decoupling

7.1.2

External Oscillator

The device supports a low-frequency crystal (32.768 kHz) on the LFXT pins and a high-frequency crystal

on the HFXT pins. External bypass capacitors for the crystal oscillator pins are required.

It is also possible to apply digital clock signals to the LFXIN and HFXIN input pins that meet the

specifications of the respective oscillator if the appropriate LFXTBYPASS or HFXTBYPASS mode is

selected. In this case, the associated LFXOUT and HFXOUT pins can be used for other purposes.

Figure 7-2 shows a typical connection diagram.

Figure 7-2. Typical Crystal Connection

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