NXP Semiconductors LFSTBEB8491
- Part No.:
- LFSTBEB8491
- Manufacturer:
- NXP Semiconductors
- Category:
- Sensor Evaluation Boards
- Package:
- Datasheet:
-
LFSTBEB8491.pdf
- Description:
- BOARD EVAL FOR MMA8491Q
- Quantity:
- Payment:

- Shipping:

Inventory:4,751
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Product details
Overview
LFSTBEB8491 from NXP (formerly Freescale) is an evaluation kit designed to demonstrate and develop with the MMA8491Q Xtrinsic 3-axis, low-power, ±2g/±4g/±8g digital accelerometer in a 3 × 3 × 1.05 mm QFN package. It includes hardware for USB-based sensor interface, factory-programmed communication firmware, and supports auto-on/auto-sleep tilt detection for smart metering and asset tracking.
For engineers reviewing the LFSTBEB8491 datasheet, LFSTBEB8491 pinout, LFSTBEB8491 application, or LFSTBEB8491 equivalent, this kit enables rapid validation of MMA8491Q tilt sensing, I²C register access, interrupt-driven wake-up behavior, and low-power mode transitions in embedded industrial systems.
Technical Context
The LFSTBEB8491 kit integrates the MMA8491Q accelerometer on a dedicated development board connected via a standardized interface to the LFSTBUSB host board, which provides USB-to-I²C bridging using an MC9S08QE8CWL microcontroller. The system operates at 3.3 V and communicates over standard I²C at up to 400 kHz.
Factory-programmed firmware implements Sensor Toolbox protocol v1.x, supporting real-time acceleration streaming, configurable interrupt thresholds, and tilt angle calculation using on-chip 45° tilt detection logic. No host-side driver installation is required beyond the generic Sensor Toolbox communication driver.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Kit Type | Evaluation kit for MMA8491Q accelerometer, not a standalone IC or component. |
| Core Sensor | MMA8491Q: 3-axis, ±2g/±4g/±8g selectable full-scale range, 14-bit output resolution. |
| Interface Protocol | I²C (standard/fast-mode), implemented via MC9S08QE8CWL bridge MCU on LFSTBUSB board. |
| Power Supply | 3.3 V DC from USB; no external power input required for basic operation. |
| Tilt Detection | Hardware-accelerated 45° tilt sensing with auto-on/auto-sleep mode enabled by internal state machine. |
| Software Support | Sensor Toolbox GUI v1.x; firmware preloaded per AN4296_SW; driver install required once per host PC. |
Availability
LFSTBEB8491 is available at Aetrix Electronics and suitable for smart metering, home appliance motion control, industrial asset tracking, and IoT edge sensor prototyping requiring stable component supply and validated reference firmware.
Supply support for LFSTBEB8491 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 company formed from the spin-off of Freescale Semiconductor and merged with NXP in 2015, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The LFSTBEB8491 belongs to NXP's Xtrinsic sensor evaluation platform family, designed to accelerate development of low-power motion-sensing applications using integrated accelerometers with intelligent on-chip features like tilt detection and autonomous power-state management.
FAQ
What is the LFSTBEB8491 used for?
The LFSTBEB8491 is an evaluation kit for the MMA8491Q accelerometer, enabling engineers to validate tilt detection, low-power wake-up behavior, and I²C register configuration in real-world applications. It is not a production component but a development tool with preloaded firmware and hardware interface boards to simplify sensor integration testing.
Does the LFSTBEB8491 include the MMA8491Q sensor?
Yes, the LFSTBEB8491 kit includes one dedicated accelerometer development board populated with the MMA8491Q in a 3 × 3 × 1.05 mm QFN package. This board connects to the LFSTBUSB interface board via a keyed connector aligned using the printed arrow indicator.
Is the LFSTBEB8491 compatible with modern Windows operating systems?
The LFSTBEB8491 uses the legacy Sensor Toolbox software originally released circa 2012. While it can operate on Windows 10/11 via compatibility mode and signed drivers, users should verify functionality through AN4296 documentation and may require manual INF driver signing or virtual machine deployment for full reliability.
What software is needed to run the LFSTBEB8491?
The LFSTBEB8491 requires the Sensor Toolbox GUI and its associated communication driver, available from freescale.com/sensortoolbox or via AN4296_SW. The kit ships factory-programmed and needs only the driver installed once per host PC to enable HyperTerminal or GUI-based interaction with the MMA8491Q sensor.
Can the LFSTBEB8491 be used without the LFSTBUSB interface board?
No - the LFSTBEB8491 kit relies on the LFSTBUSB interface board to provide USB-to-I²C bridging and power regulation. The accelerometer development board lacks USB connectivity or onboard voltage regulation, making the LFSTBUSB board essential for operation and communication with the host PC.
LFSTBEB8491 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Box
- Product Status:
- Not For New Designs
- Sensor Type:
- Accelerometer, 3 Axis
- Sensing Range:
- ±8G
- Interface:
- I2C
- Sensitivity:
- 1024 count/g
- Voltage - Supply:
- 1.95V ~ 3.6V
- Embedded:
- No
- Contents:
- Board(s)
- Utilized IC / Part:
- MMA8491Q
LFSTBEB8491 FAQ
1.How can I place an order for LFSTBEB8491 through Aetrix?
Please submit a Request for Quotation (RFQ) for LFSTBEB8491 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 LFSTBEB8491 reliable?
The price and inventory of LFSTBEB8491 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LFSTBEB8491 is usually 5 days.
3.What payment methods are accepted for LFSTBEB8491?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LFSTBEB8491 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LFSTBEB8491?
LFSTBEB8491 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LFSTBEB8491 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 LFSTBEB8491?
For technical support, including LFSTBEB8491 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LFSTBEB8491 requirements.
6.How does Aetrix verify that LFSTBEB8491 is sourced from the original manufacturer or authorized distributors?
All LFSTBEB8491 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 LFSTBEB8491 meets industry standards.
7.What is the process for return or replacement of LFSTBEB8491?
All LFSTBEB8491 units undergo pre-shipment inspection (PSI). If there is an issue with LFSTBEB8491, 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 LFSTBEB8491 part is unused and in its original packaging.
Return procedure for LFSTBEB8491:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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