FXPS7115D4 datasheet(4/72 Pages) NXP

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NXP Semiconductors

FXPS7115D4

Digital absolute pressure sensor, 40 kPa to 115 kPa

FXPS7115D4

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Product data sheet

Rev. 3 — 5 December 2019

4 / 72

6.2 Pin description

Table 3. Pin description

Pin name

Description

INT

Interrupt output

The output can be configured to be active low or active high. If unused, NXP

recommends pin 3 be unterminated. Optionally, pin 3 can be tied to VSS.

1, 16

VCC

Power supply

4, 15

VSS

Supply return (ground)

2, 5, 12

TESTx

Test pin

NXP recommends pins 2, 5, and 12 be unterminated. Optionally, these pins can

be tied to VSS

6, 7, 14

No connect

SS_B

Slave / Device select

In I2C mode, input pin 8 must be connected to VCC with an external pull-up

resistor, as shown in the application diagram.

In SPI mode, input pin 8 provides the slave select for the SPI port. An internal

pull-up device is connected to this pin.

SCLK/SCL

In I2C mode, input pin 9 provides the serial clock. This pin must be connected to

VCC with an external pull-up resistor, as shown in the application diagram.

In SPI mode, input pin 9 provides the serial clock. An internal pull-down device is

connected to this pin.

MOSI

SPI data in

In SPI mode, pin 10 functions as the serial data input to the SPI port. An internal

pull-down device is connected to this pin.

MISO/SDA

SPI/I2C data out

In I2C mode, pin 11 functions as the serial data input/output. Pin 11 must be

connected to VCC with an external pull-up resistor, as shown in the application

diagram.

In SPI mode, pin 11 functions as the serial data output.

VCCIO

I/O supply

Pin 13 must be connected to VCC, the device supply.

PAD

Die attach pad

Pin 17 is the die attach flag, and must be connected to VSS.

7 Functional description

7.1 Voltage regulators

The device derives its internal supply voltage from the VCC and VSS pins. An external

filter capacitor is required for VCC, as shown in Figure 25 and Figure 26.

A reference generator provides a reference voltage for the ΣΔ converter.

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