FXLS8964AF datasheet(12/98 Pages) NXP

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NXP Semiconductors

FXLS8964AF

3-Axis Low-g Accelerometer

11 Temperature sensor characteristics

VDD = 1.8 V to 3.0 V, T = –40 °C to 105 °C, unless otherwise noted.

Typical values represent mean or mean ±1 σ values, depending on the specific parameter.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

nTEMP

Output data width

—

bits

FSRTEMP

Measurement range

—

–40 to +105

—

°C

SENTEMP

Sensitivity

—

°C/LSB

SENTOL-TEMP Sensitivity tolerance

—

±2.5

—

OFFTEMP

Nominal zero-output

offset

Output Code = 00h

—

°C

Table 9. Temperature sensor performance parameters

12 I2C digital interface

The registers embedded within FXLS8964AF may be accessed using an I2C interface

when the INTF_SEL pin is tied to GND. If the VDD supply is not present, the device is in

shutdown mode and any communications on the interface are ignored. When the device

is on a common I2C-bus with other secondary devices, the VDD supply pin must be left

unconnected (high-impedance) when the device supply is turned off to ensure that the

internal ESD protection diodes do not become forward biased and prevent the bus from

functioning normally (clamping).

The I2C secondary interface port of FXLS8964AF is compliant with the following three

operating modes as defined in UM10204[3]:

• Fast-mode Plus (Fm+) at 1000 kHz

• Fast-mode (Fm) at 400 kHz

• Standard-mode (Sm) at 100 kHz

Pin Name

Pin Description

SCL

I2C serial clock (pull-up resistor is required)

SDA

I2C serial data (pull-up resistor is required)

Table 10. I2C serial interface pin description

12.1 I2C interface characteristics

The I2C secondary address (7-bit format) is set to 18h when SA0 = 0, and 19h when

SA0 = 1.

SA0

I2C write address

I2C read address

30h (0011 0000b)

31h (0011 0001b)

32h (0011 0010b)

33h (0011 0011b)

Table 11. FXLS8964AF I2C read and write addresses

FXLS8964AF

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

Product data sheet

Rev. 3.4 — 7 December 2021

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