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NXP Semiconductors MMA6361LT
- Part No.:
- MMA6361LT
- Manufacturer:
- NXP Semiconductors
- Category:
- Accelerometers
- Package:
- 14-TFLGA
- Datasheet:
-
MMA6361LT.pdf
- Description:
- ACCEL 1.5-6G ANALOG 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,216
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Product details
Overview
The MMA6361LT from Freescale Semiconductor is a low-power, dual-axis capacitive MEMS accelerometer with integrated signal conditioning, selectable ±1.5g/±6g full-scale range, 800 mV/g sensitivity at 1.5g, 400 μA active current, and 3 μA sleep mode current-designed for motion sensing in battery-powered handheld devices such as cell phones and pedometers.
For engineers reviewing the MMA6361LT datasheet, MMA6361LT pinout, MMA6361LT application, or MMA6361LT equivalent, key selection criteria include g-range configurability via g-Select pin, ratiometric analog outputs (XOUT/YOUT), LGA-14 package compatibility, and fast 0.5 ms enable response time in portable motion interface designs.
Technical Context
The MMA6361LT implements a surface-micromachined polysilicon g-cell with differential capacitive sensing, paired with an ASIC using switched-capacitor techniques for C-to-V conversion, temperature compensation, and single-pole low-pass filtering-no external RC components required. Its internal oscillator drives a 11 kHz sampling clock.
Signal path includes factory-trimmed zero-g offset and sensitivity, ratiometric output scaling with VDD (2.2–3.6 V), and logic-controlled Sleep Mode (pin 7) and g-Select (pin 10) enabling dynamic power/sensitivity adaptation without host MCU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full-Scale Range | Configurable ±1.5g or ±6g via g-Select pin; enables one device to serve both high-sensitivity tilt detection and high-g shock monitoring. |
| Sensitivity | 800 mV/g @ ±1.5g (typ), 206 mV/g @ ±6g (typ); defines analog output voltage change per g of acceleration on X/Y axes. |
| Supply Current | 400 μA active (typ), 3 μA sleep (typ); supports multi-day battery life in always-on motion wake-up systems. |
| Bandwidth | 400 Hz XY response (f−3dB); sufficient for human-motion capture (e.g., pedometer, gaming) while rejecting high-frequency noise. |
| Enable Response Time | 0.5 ms (10% to 90%); allows rapid wake-from-sleep activation for event-triggered data capture. |
| Output Impedance | 32 kΩ (internal); requires ≥10 MΩ input impedance on ADC or buffer to avoid signal attenuation. |
| Ratiometricity | Output offset and sensitivity scale linearly with VDD; eliminates supply-voltage-induced error when interfacing with ratiometric ADCs. |
Pinout & Package
Package: 14-lead LGA (3 mm × 5 mm × 1.0 mm, Case 1977-01), RoHS-compliant, surface-mountable with solder-mask-defined footprint per AN3484.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 2 (XOUT) | Analog output, X-axis acceleration | Ratiometric voltage output centered at VDD/2 (1.65 V @ 3.3 V); ±1.5g yields ±1.2 V swing. |
| 3 (YOUT) | Analog output, Y-axis acceleration | Identical behavior to XOUT; enables independent 2D motion vector measurement. |
| 5 (VSS) | Power ground reference | Digital ground return; must be tied to system GND with low-impedance path. |
| 6 (VDD) | Positive supply input | Accepts 2.2–3.6 V; requires 0.1 μF decoupling capacitor placed near pin. |
| 7 (Sleep) | Active-low digital control input | Pull-low to enter 3 μA sleep; pull-high to resume active operation; no external pull-up needed. |
| 10 (g-Select) | Logic select input for full-scale range | Low = ±1.5g (800 mV/g), High = ±6g (206 mV/g); internal pull-down defaults to 1.5g if left floating. |
| 13 (GND) | Analog ground terminal | Must be connected to system ground plane; PCB layout recommends solid ground plane beneath device. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable g-range | Single-pin (g-Select) toggles between ±1.5g and ±6g full-scale, eliminating need for multiple BOM variants in multi-function products. |
| Ultra-low sleep current | 3 μA typ enables >1-year battery life in motion-wake applications (e.g., laptop anti-theft, wearable pedometers). |
| Integrated signal conditioning | On-chip C-to-V conversion, temperature compensation, and switched-capacitor filter eliminate external op-amps and RC networks. |
| Ratiometric analog outputs | XOUT/YOUT scale with VDD, enabling direct connection to microcontroller ADCs without separate voltage references or calibration for supply drift. |
| Robust mechanical design | Rated for ±5000 g shock survival and 1.8 m drop test; suitable for consumer electronics handling environments. |
Applications
| Cell Phone Motion Interface | Laptop Anti-Theft System |
|---|---|
Use Scenario: Detecting device orientation, motion gestures (e.g., text scroll, motion dialing), and image stabilization during video capture. IC Role / Device Role / Timing Role: Dual-axis analog accelerometer providing real-time X/Y acceleration data to host MCU for gesture classification and camera actuator control. Use Value: 800 mV/g sensitivity at ±1.5g enables precise sub-degree tilt resolution; 0.5 ms wake time ensures responsive UI feedback. | Use Scenario: Monitoring sudden movement or free-fall events to trigger hard drive lock or alarm activation when laptop is displaced. IC Role / Device Role / Timing Role: Low-power motion detector that remains in 3 μA Sleep Mode until acceleration exceeds threshold, then wakes host controller. Use Value: Configurable ±6g range captures aggressive displacement events; ratiometric outputs simplify integration with existing laptop power rails (2.5–3.3 V). |
| Pedometer Motion Sensing | 3D Gaming Tilt Control |
Use Scenario: Counting steps and estimating distance traveled by detecting vertical hip acceleration peaks during walking/running cycles. IC Role / Device Role / Timing Role: Analog front-end delivering conditioned X/Y acceleration waveforms to MCU for peak-detection and step-counting algorithms. Use Value: 400 Hz bandwidth captures human gait harmonics (0.5–5 Hz fundamental + harmonics); low 400 μA current extends coin-cell battery life. | Use Scenario: Translating device tilt into in-game character movement or camera angle adjustment in handheld gaming consoles. IC Role / Device Role / Timing Role: Real-time 2D motion sensor feeding analog X/Y outputs to game engine for low-latency tilt-to-control mapping. Use Value: Fast 0.5 ms enable response allows immediate motion tracking after button press; ±1.5g range matches typical handheld tilt angles (±30°). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-axis analog accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics LIS3LV02DL | 2.7–3.3 V supply only; fixed ±2g range; I²C digital output; 300 μA active current. | Requires MCU with I²C interface and firmware for data parsing; lacks analog ratiometric simplicity and g-range flexibility. | Select when digital interface, smaller footprint (LGA-16), or tighter offset stability over temperature are prioritized over analog ease-of-use. |
| Analog Devices ADXL322 | Fixed ±2g/±5g dual-range (pin-selectable); 3.3 V only; 500 μA active current; 500 Hz bandwidth. | Higher power and fixed supply limit use in ultra-low-voltage (2.2 V) or long-battery-life designs where MMA6361LT's 3 μA sleep is critical. | Select when higher bandwidth (500 Hz) or industry-standard ADI qualification is required, accepting trade-offs in sleep current and supply flexibility. |
Compared with LIS3LV02DL and ADXL322, the MMA6361LT uniquely combines 2.2–3.6 V operation, configurable g-range, ratiometric analog outputs, and 3 μA sleep-making it optimal for cost-sensitive, battery-constrained consumer motion interfaces requiring minimal external components.
Availability
MMA6361LT is available at Aetrix Electronics and suitable for cell phone motion sensing, laptop anti-theft systems, pedometer motion detection, and 3D gaming tilt control requiring stable component supply across high-volume consumer electronics production.
Supply support for MMA6361LT 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
Freescale Semiconductor (now part of NXP Semiconductors) is a global semiconductor company specializing in embedded processing, sensors, and connectivity solutions for automotive, industrial, and consumer markets.
The MMA6361LT belongs to Freescale's Xtrinsic™ family of intelligent sensors, designed specifically for ultra-low-power, high-accuracy motion sensing in portable and battery-operated electronics.
FAQ
What is the supply voltage range supported by the MMA6361LT?
The MMA6361LT operates from 2.2 V to 3.6 V DC. Within this range, it delivers fully calibrated linear accelerometer performance. Operation below 2.2 V or above 3.6 V may result in uncalibrated behavior or damage, as specified in the Absolute Maximum Ratings table. The MMA6361LT's ratiometric outputs scale directly with VDD, simplifying interface to microcontrollers powered from the same rail.
How does the g-Select pin configure the MMA6361LT's sensitivity?
The g-Select pin (Pin 10) selects full-scale range: logic low configures ±1.5g (800 mV/g), logic high configures ±6g (206 mV/g). The MMA6361LT includes an internal pull-down, so leaving g-Select unconnected defaults to ±1.5g mode. This feature allows dynamic range switching during operation without external components-critical for applications needing both fine-tilt resolution and high-g event detection.
What is the purpose of the Sleep pin on the MMA6361LT?
The Sleep pin (Pin 7) is an active-low digital input that places the MMA6361LT into ultra-low-power Sleep Mode (3 μA typ) when pulled low, disabling analog outputs and reducing current draw by >99%. Pulling Sleep high restores normal operation with 0.5 ms enable response time. This enables motion-triggered wake-up architectures in battery-powered devices like pedometers and laptops, extending operational life significantly.
Can the MMA6361LT be used with a 3.3 V microcontroller ADC without additional signal conditioning?
Yes-the MMA6361LT's ratiometric XOUT and YOUT outputs are designed for direct connection to 3.3 V microcontroller ADCs. With VDD = 3.3 V, outputs center at 1.65 V (VDD/2) and swing ±1.2 V for ±1.5g, staying within 0.1–3.2 V ADC input range. Its 32 kΩ output impedance requires ≥10 MΩ ADC input impedance to avoid attenuation; no op-amp buffering is needed if this condition is met.
What PCB layout practices are recommended for optimal MMA6361LT performance?
Optimal MMA6361LT layout requires a solid ground plane beneath the device (connected to Pins 5, 13), 0.1 μF VDD decoupling capacitor placed adjacent to Pin 6, and 3.3 nF capacitors on XOUT/YOUT to suppress switched-capacitor clock noise. Per AN3484, minimize trace length to MCU, avoid routing high-current paths near the sensor, and use solder mask to prevent pad bridging-critical for maintaining factory-calibrated zero-g offset post-reflow.
MMA6361LT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 14-TFLGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X, Y
- Acceleration Range:
- ±1.5g, 6g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 800 (±1.5g) ~ 206 (±6g)
- Bandwidth:
- 400Hz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.2V ~ 3.6V
- Features:
- Selectable Scale, Sleep Mode
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-LGA (3x5)
MMA6361LT FAQ
1.How can I place an order for MMA6361LT through Aetrix?
Please submit a Request for Quotation (RFQ) for MMA6361LT 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 MMA6361LT reliable?
The price and inventory of MMA6361LT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMA6361LT is usually 5 days.
3.What payment methods are accepted for MMA6361LT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMA6361LT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMA6361LT?
MMA6361LT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMA6361LT 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 MMA6361LT?
For technical support, including MMA6361LT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMA6361LT requirements.
6.How does Aetrix verify that MMA6361LT is sourced from the original manufacturer or authorized distributors?
All MMA6361LT 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 MMA6361LT meets industry standards.
7.What is the process for return or replacement of MMA6361LT?
All MMA6361LT units undergo pre-shipment inspection (PSI). If there is an issue with MMA6361LT, 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 MMA6361LT part is unused and in its original packaging.
Return procedure for MMA6361LT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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