FXLS8964AF datasheet(6/98 Pages) NXP

6 / 98 page

NXP Semiconductors

FXLS8964AF

3-Axis Low-g Accelerometer

FXLS8964AF

All information provided in this document is subject to legal disclaimers.

Objective data sheet

Rev. 2 — 30 October 2020

6 / 98

Notes:

• Resistors R1 and R2 are not needed if the interrupt output driver type is configured for

push-pull operation (default).

• If either the INT1 or INT2 pins are not used in the application, leave them unconnected.

• The required pull-up resistor values for R3 and R4 are dependent on several factors

including the I2C clock frequency, bus pull-up voltage, and the total parasitic trace

+ device capacitances. A suggested starting point is 4.7 kΩ for Standard and Fast

modes.

• The external trigger function can be used to initiate a single shot measurement of

the XYZ acceleration and temperature data. This mode is useful for synchronizing

measurements with an external system or for creating user-specific ODRs. The

measurement is triggered on the rising edge of the EXT_TRIG signal.

VDD

SA0/SPI_MISO

BT_MODE

SCL/SCLK

GND

INTF_SEL

INT1/MOT_DET

SPI_CS_B/WAKE_UP

INT2/EXT_TRIG/BOOT_OUT

SDA/SPI_MOSI/SPI_DATA

1.0 µF

VDD

INT1

MOSI

SCLK

VDD

MISO

INT2/EXT_TRIG

SPI_CS_B/WAKE_UP

Figure 4. Typical Application Circuit #2 – SPI 4-wire mode

Figure 5. Typical Application Circuit #3 – SPI 3-wire mode (software enabled; SENS_CONFIG1[SPI_M] = 1)

Figure 6. Typical Application Circuit #4 – SPI 3-wire mode (hardwired; SENS_CONFIG1[SPI_M] = X)

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