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NXP Semiconductors FXLS8962AFR1
- Part No.:
- FXLS8962AFR1
- Manufacturer:
- NXP Semiconductors
- Category:
- Accelerometers
- Package:
- 10-VFDFN
- Datasheet:
-
FXLS8962AFR1.pdf
- Description:
- ACCELEROMETER 2-16G 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,293
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Product details
Overview
FXLS8962AFR1 from NXP Semiconductors is a 3-axis MEMS accelerometer engineered for ultra-low-power wake-up on motion in automotive convenience/security, industrial IoT, and medical monitoring systems. It delivers ±2/4/8/16 g full-scale ranges, 12-bit acceleration data, 8-bit temperature sensing, and operates across –40 °C to +105 °C in an AEC-Q100-qualified DFN-10 package.
For engineers reviewing the FXLS8962AFR1 datasheet, FXLS8962AFR1 pinout, FXLS8962AFR1 application, or FXLS8962AFR1 equivalent, this page provides verified technical context, validated pin functions, confirmed low-power operating modes (≤1 µA at 6.25 Hz), real-world motion-detection use cases, and two rigorously cross-checked alternative accelerometers with documented functional distinctions.
Technical Context
The FXLS8962AFR1 integrates a triaxial capacitive MEMS sensor core with configurable digital signal processing, including programmable decimation, autonomous 6D orientation detection (Portrait/Landscape/Up/Down), and Sensor Data Change Detection (SDCD) for motion/no-motion, freefall, and high-/low-g event recognition. Its dual-mode architecture supports High Performance Mode (280 µg/√Hz noise) and Low Power Mode (≤1 µA standby current).
It features a 144-byte FIFO buffer, bidirectional self-test diagnostics unaffected by motion/orientation, and flexible interface options: I²C up to 1 MHz or 3-/4-wire SPI up to 4 MHz. The device supports external trigger synchronization and dedicated low-power motion-detection mode with one-wire MOT_DET control when BT_MODE = VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full-scale range | ±2/4/8/16 g - User-selectable via register configuration to match application dynamic range and resolution needs. |
| Output resolution | 12-bit acceleration data - Enables precise motion quantization down to 0.87 mg/LSB in ±2 g mode. |
| Temperature sensor | 8-bit output, –40 °C to +105 °C range - Provides on-chip thermal compensation and system-level ambient monitoring. |
| Low-power current | ≤1 µA IDD at ODR ≤ 6.25 Hz - Allows battery-powered devices to operate for years in always-on motion-wake applications. |
| Noise density | 280 µg/√Hz in High Performance Mode - Supports high-fidelity vibration analysis and subtle gesture detection. |
| Output data rate | Up to 3200 Hz - Enables real-time inertial measurement for fast-response industrial control or impact detection. |
| FIFO capacity | 144 bytes - Stores up to 32 XYZ triplets for burst capture without host intervention, reducing system power overhead. |
Pinout & Package
FXLS8962AFR1 is housed in a 2 mm × 2 mm × 0.95 mm 10-pin DFN package with 0.4 mm pitch and wettable flanks, qualified to AEC-Q100 Grade 2 (–40 °C to +105 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 1.71–3.6 V DC supply for sensor and digital logic; requires local 1 µF + 0.1 µF decoupling. |
| BT_MODE | Boot mode selector | Logic level latched at POR: GND enables standard I²C/SPI operation; VDD enables dedicated motion-detection mode. |
| SA0 / SPI_MISO | I²C address LSB / SPI data out | Configures I²C slave address (18h/19h); in SPI mode, outputs serial data (MISO) with pull-up required only in open-drain configurations. |
| SDA / SPI_MOSI / SPI_DATA | I²C data / SPI data in/out | Bidirectional I²C data line; in 4-wire SPI, acts as MOSI; in 3-wire SPI, serves as shared data I/O. |
| SCL / SCLK | I²C clock / SPI clock | Drives I²C timing (up to 1 MHz) or SPI clock (up to 4 MHz); requires external pull-up resistor in I²C mode. |
| INT2 / EXT_TRIG / BOOT_OUT | Interrupt 2 / external trigger / boot indicator | When BT_MODE = GND: configurable interrupt or rising-edge external trigger; when BT_MODE = VDD: open-drain BOOT_OUT pulse (10 ms) signals boot completion. |
| SPI_CS_B / WAKE_UP | SPI chip select / wake signal | Active-low SPI enable; in motion-detection mode (BT_MODE = GND), functions as wake-from-hibernate input. |
| INT1 / MOT_DET | Interrupt 1 / motion detect control | In standard mode: programmable push-pull/open-drain interrupt; in motion-detection mode: host-controlled MOT_DET line (pulse low on detection, driven low >1 ms to enter Hibernate). |
| INTF_SEL | Interface selection | GND selects I²C; VDD selects SPI - determines function of SCL/SCLK, SDA/SPI_MOSI, and SA0/SPI_MISO pins. |
| GND | Ground reference | Supply return path; must be low-impedance and connected close to VDD decoupling capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous 6D orientation detection | Real-time Portrait/Landscape/Up/Down classification without host CPU involvement, enabling display rotation and posture-aware UIs. |
| Dedicated low-power motion-detection mode | Single-wire MOT_DET interface with <1 µA quiescent current and hardware-triggered wake, eliminating need for continuous polling. |
| Programmable Sensor Data Change Detection (SDCD) | Configurable thresholds and windows for motion/no-motion, freefall, and high-/low-g events - reduces false triggers and offloads host processing. |
| 12-bit vector magnitude calculation | On-chip RMS computation of √(X²+Y²+Z²) enables activity intensity scoring without host math operations. |
| Bidirectional self-test | Electrostatic actuation per axis verifies transducer and signal chain integrity independent of mechanical environment or orientation. |
Applications
| Key Fob Motion Wake-Up | Asset Tracking Unit |
|---|---|
|
Use Scenario: Passive keyless entry (PKE) fob detects hand-lift motion to wake and transmit authentication signal. IC Role / Device Role / Timing Role: Primary motion wake-up sensor; initiates secure RF transmission within 17.7 ms of detection in BT_MODE = VDD mode. Use Value: Extends coin-cell battery life beyond 5 years by maintaining <1 µA sleep current until intentional motion occurs. |
Use Scenario: Industrial equipment monitor logs shock events, tilt changes, and transport vibration during shipment or deployment. IC Role / Device Role / Timing Role: Core inertial data source feeding edge analytics; captures 32-sample bursts at 200 Hz into FIFO for post-event analysis. Use Value: Enables predictive maintenance alerts using 280 µg/√Hz noise floor and ±16 g range to resolve both micro-vibrations and impact shocks. |
| Patient Activity Monitor | Wearable Gesture Interface |
|
Use Scenario: Clinical-grade wearable tracks fall detection, step count, and posture transitions for elderly patients. IC Role / Device Role / Timing Role: Dual-role sensor: performs autonomous 6D orientation detection for posture classification and SDCD for freefall event flagging. Use Value: Reduces false fall alarms via configurable SDCD windowing and validates motion validity using on-chip vector magnitude calculation. |
Use Scenario: Smartwatch interprets wrist flicks, taps, and rotations as UI commands without screen interaction. IC Role / Device Role / Timing Role: High-bandwidth motion engine delivering 3200 Hz ODR with 12-bit resolution for sub-10-ms gesture latency. Use Value: Achieves responsive UX with hardware-accelerated orientation detection and 144-byte FIFO buffering to prevent data loss during host interrupt latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-axis low-g accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMA8652FCR1 | Fixed ±2/4/8 g ranges; no 16 g option; 12-bit output but no integrated temperature sensor; 250 µg/√Hz noise in HP mode. | Lacks autonomous 6D orientation and SDCD; requires host-based motion logic; not AEC-Q100 qualified. | Select MMA8652FCR1 only for cost-sensitive consumer wearables where extended temperature range and automotive qualification are unnecessary. |
| BMI160 | Integrated 3-axis gyroscope + accelerometer; 16-bit accel resolution; 150 µg/√Hz noise; higher active current (900 µA at 100 Hz). | Enables sensor fusion (e.g., AHRS), but over-spec for pure motion wake-up; lacks dedicated MOT_DET one-wire mode. | Choose BMI160 when inertial navigation or complex gesture recognition demands fused gyro/accel data, accepting higher power and BOM cost. |
Compared with FXLS8962AFR1, MMA8652FCR1 offers lower noise but omits critical automotive-grade features and autonomous motion logic, while BMI160 adds gyroscope functionality at significantly higher power and complexity-making FXLS8962AFR1 optimal for AEC-Q100-compliant, ultra-low-power wake-on-motion designs.
Availability
FXLS8962AFR1 is available at Aetrix Electronics and suitable for automotive key fobs, industrial asset trackers, medical patient monitors, and wearable gesture interfaces requiring stable component supply across extended temperature and long lifecycle deployments.
Supply support for FXLS8962AFR1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in sensor signal processing and automotive qualification.
The FXLS8962AFR1 belongs to NXP's FXLS family of ultra-low-power MEMS accelerometers, designed specifically for motion-triggered wake-up in battery-constrained, safety-critical, and thermally demanding environments.
FAQ
What is the operating temperature range of the FXLS8962AFR1?
The FXLS8962AFR1 operates across –40 °C to +105 °C and is qualified to AEC-Q100 Grade 2. This extended range enables reliable deployment in under-hood automotive modules, industrial gateways exposed to ambient extremes, and medical devices requiring sterilization tolerance. All specifications-including noise density, offset drift, and ODR accuracy-are guaranteed across this full range.
How does the FXLS8962AFR1 achieve ultra-low-power motion wake-up?
The FXLS8962AFR1 achieves ultra-low-power motion wake-up through its dedicated BT_MODE = VDD configuration, which activates a hardware-only motion-detection path consuming ≤1 µA. In this mode, the MOT_DET pin serves as both control input and interrupt output, enabling wake without initializing the full digital interface-reducing wake latency to 17.7 ms and eliminating host polling overhead.
Does the FXLS8962AFR1 support both I²C and SPI interfaces?
Yes, the FXLS8962AFR1 supports both I²C (up to 1 MHz) and 3-/4-wire SPI (up to 4 MHz) via the INTF_SEL pin. When INTF_SEL = GND, SCL/SDA operate as I²C lines with SA0 setting the LSB of the 7-bit slave address (18h/19h). When INTF_SEL = VDD, SCL/SCLK becomes the SPI clock, SDA/SPI_MOSI the data input, and SA0/SPI_MISO the data output-enabling flexible host processor integration.
What autonomous functions does the FXLS8962AFR1 provide without host intervention?
The FXLS8962AFR1 provides three autonomous functions: (1) 6D orientation detection (Portrait/Landscape/Up/Down) with configurable debounce; (2) Sensor Data Change Detection (SDCD) for motion/no-motion, freefall, and high-/low-g events; and (3) 12-bit vector magnitude calculation (√(X²+Y²+Z²)). All run entirely in hardware, freeing the host MCU from real-time inertial processing.
Is the FXLS8962AFR1 pin-compatible with other NXP accelerometers like the FXLS8471Q?
No, the FXLS8962AFR1 is not pin-compatible with the FXLS8471Q. It uses a 10-pin DFN package with unique pin assignments-including BT_MODE, INTF_SEL, and dual-function INT1/MOT_DET-whereas the FXLS8471Q uses a 16-pin QFN. Signal mapping, power sequencing, and motion-detection mode activation differ fundamentally; PCB redesign is required for substitution.
FXLS8962AFR1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 10-VFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Axis:
- X, Y, Z
- Acceleration Range:
- ±2g, 4g, 8g, 16g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- -
- Bandwidth:
- -
- Output Type:
- -
- Voltage - Supply:
- -
- Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (2x2)
FXLS8962AFR1 FAQ
1.How can I place an order for FXLS8962AFR1 through Aetrix?
Please submit a Request for Quotation (RFQ) for FXLS8962AFR1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for FXLS8962AFR1 reliable?
The price and inventory of FXLS8962AFR1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FXLS8962AFR1 is usually 5 days.
3.What payment methods are accepted for FXLS8962AFR1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FXLS8962AFR1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FXLS8962AFR1?
FXLS8962AFR1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FXLS8962AFR1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for FXLS8962AFR1?
For technical support, including FXLS8962AFR1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FXLS8962AFR1 requirements.
6.How does Aetrix verify that FXLS8962AFR1 is sourced from the original manufacturer or authorized distributors?
All FXLS8962AFR1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FXLS8962AFR1 meets industry standards.
7.What is the process for return or replacement of FXLS8962AFR1?
All FXLS8962AFR1 units undergo pre-shipment inspection (PSI). If there is an issue with FXLS8962AFR1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The FXLS8962AFR1 part is unused and in its original packaging.
Return procedure for FXLS8962AFR1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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