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NXP Semiconductors MMA7360LT
- Part No.:
- MMA7360LT
- Manufacturer:
- NXP Semiconductors
- Category:
- Accelerometers
- Package:
- 14-TFLGA
- Datasheet:
-
MMA7360LT.pdf
- Description:
- ACCEL 1.5-6G ANALOG 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,942
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Product details
Overview
MMA7360LT from Freescale Semiconductor is a 3-axis capacitive MEMS accelerometer with integrated signal conditioning, selectable ±1.5g/±6g ranges, 0g-detect for freefall protection, and sleep mode consuming only 3 μA. It delivers ratiometric analog outputs (XOUT/YOUT/ZOUT), features self-test capability, and operates from 2.2 V to 3.6 V - ideal for battery-powered portable electronics requiring motion sensing and impact detection.
For engineers reviewing the MMA7360LT datasheet, MMA7360LT pinout, MMA7360LT application, or MMA7360LT equivalent, key selection criteria include its low-power sleep mode, factory-trimmed zero-g offset, g-select logic-controlled sensitivity switching, and integrated 0g-detect digital output for HDD protection and anti-theft systems.
Technical Context
The MMA7360LT uses a surface-micromachined polysilicon g-cell with back-to-back capacitors, read via switched-capacitor ASIC circuitry. Its signal path includes a single-pole switched-capacitor low-pass filter (f−3dB = 400 Hz XY / 300 Hz Z), temperature-compensated gain, and ratiometric output scaling with VDD.
Control logic enables real-time mode switching: Sleep Mode disables analog outputs and reduces current to 3 μA; g-Select (pin 10) selects internal gain (800 mV/g at ±1.5g or 206 mV/g at ±6g); Self Test (pin 13) applies electrostatic force to verify mechanical and electrical integrity; 0g-Detect (pin 9) asserts high when all axes measure near 0g.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Acceleration Range | ±1.5g or ±6g, selected by g-Select pin logic level - enables dual-mode operation without external components |
| Supply Voltage | 2.2 V to 3.6 V - compatible with single Li-ion or 3×AA battery systems without regulation |
| Supply Current | 400 μA typical active, 3 μA in Sleep Mode - extends battery life in handheld devices |
| Sensitivity | 800 mV/g (±1.5g mode), 206 mV/g (±6g mode) - provides high-resolution tilt sensing or robust shock detection |
| Bandwidth | 400 Hz (XY), 300 Hz (Z) - supports motion tracking and freefall detection with minimal phase delay |
| 0g-Detect Output | Digital logic-high signal when |X|, |Y|, |Z| < 0.4g - directly interfaces to MCU interrupt pins for instant system response |
| Self Test Response | ΔgSTXY = +0.05g to +1.0g, ΔgSTZ = +0.8g - verifies full signal chain including sensor deflection and ASIC conversion |
Pinout & Package
Package: 14-pin LGA (3 mm × 5 mm × 1.0 mm, Case 1935-01), RoHS-compliant, surface-mountable with solder-mask-defined footprint per AN3484.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 11, 12, 14 | No Connection (N/C) | Internally unconnected; must remain floating or grounded per layout guidelines - no routing required |
| 2 (XOUT) | Analog Output - X-axis | Ratiometric voltage (VDD/2 ± sensitivity × g) - requires 3.3 nF capacitor to suppress clock noise |
| 3 (YOUT) | Analog Output - Y-axis | Identical behavior to XOUT; independent channel for 2D/3D motion vector calculation |
| 4 (ZOUT) | Analog Output - Z-axis | Same ratiometric scaling; used with X/Y for tilt compensation and orientation detection |
| 5 (VSS) | Ground Reference | Must connect to low-impedance ground plane beneath package to minimize noise coupling |
| 6 (VDD) | Power Supply Input | 2.2–3.6 V supply; requires 0.1 μF ceramic decoupling capacitor placed adjacent to pin |
| 7 (Sleep) | Digital Control Input | Low = Sleep Mode (3 μA), High = Active Mode - enables rapid wake-up (<0.5 ms enable time) |
| 9 (0g-Detect) | Digital Output | Open-drain logic-high when all axes within ±0.4g - drives MCU interrupt without pull-up if host provides it |
| 10 (g-Select) | Digital Control Input | Logic 0 = ±1.5g (800 mV/g), Logic 1 = ±6g (206 mV/g); internal pull-down defaults to 1.5g if left open |
| 13 (Self Test) | Digital Control Input | Pulse-high initiates self-test sequence; output shifts confirm sensor and ASIC functionality |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed Zero-g Offset | VOFF = 1.65 V ±2.0 mV/°C at 25°C and 3.3 V - eliminates need for external calibration or trimming resistors |
| Ratiometric Output Scaling | Output offset and sensitivity scale linearly with VDD - cancels supply-induced errors in ADC-based systems |
| Integrated Low-Pass Filtering | Switched-capacitor filter with no external components - sets bandwidth at 400 Hz (XY) and 300 Hz (Z) |
| Freefall Detection Ready | 0g-Detect output activates within 2 ms of sustained 0g condition - meets HDD drop-protection timing requirements |
| Robust Shock Tolerance | Withstands ±5000 g mechanical shock - survives board-level reflow and end-product drop testing (1.8 m concrete drop) |
Applications
| Laptop Freefall Protection | HDD MP3 Player Drop Detection |
|---|---|
Use Scenario: Sudden vertical acceleration loss during laptop drop triggers immediate hard drive head parking. IC Role / Device Role / Timing Role: MMA7360LT monitors Z-axis acceleration; 0g-Detect asserts within 2 ms to signal MCU for emergency action. Use Value: Prevents data corruption and mechanical damage by enabling sub-10 ms head retraction before impact. | Use Scenario: Portable MP3 player experiences abrupt deceleration when dropped from pocket height. IC Role / Device Role / Timing Role: MMA7360LT detects simultaneous near-zero acceleration on all three axes; 0g-Detect output drives interrupt. Use Value: Enables firmware-initiated power-down and buffer flush before physical impact, preserving audio file integrity. |
| Mobile Phone Motion Dialing | Pedometer Step Counting |
Use Scenario: User shakes phone horizontally to initiate voice dialing or contact search. IC Role / Device Role / Timing Role: MMA7360LT captures transient X/Y-axis acceleration peaks >1.5g; MCU samples analog outputs at 1 kHz. Use Value: High 800 mV/g sensitivity in ±1.5g mode resolves subtle wrist motions, reducing false triggers vs. lower-sensitivity alternatives. | Use Scenario: Walking motion generates periodic vertical acceleration peaks as foot strikes ground. IC Role / Device Role / Timing Role: MMA7360LT measures Z-axis acceleration waveform; firmware applies bandpass filtering around 1–3 Hz. Use Value: Factory-calibrated zero-g offset and <±1% nonlinearity ensure consistent step detection across temperature and battery voltage variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-axis analog-output accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXL335 | Wider supply range (1.8–3.6 V), higher noise floor (300 μg/√Hz vs. 350 μg/√Hz), no 0g-Detect or Sleep Mode | Lacks integrated freefall detection logic and ultra-low-power sleep state - requires external GPIO monitoring and power gating | Choose ADXL335 when broader voltage compatibility is critical and system-level 0g logic can be implemented in firmware. |
| KXSC7-2050 | Lower current (200 μA active), I²C digital output, built-in FIFO, but no analog outputs or 0g-Detect pin | Requires MCU with I²C interface; no direct replacement for analog-input or interrupt-driven 0g use cases | Choose KXSC7-2050 when digital interface, lower power, and on-chip data buffering outweigh need for analog ratiometric outputs and hardware 0g signaling. |
Compared with ADXL335 and KXSC7-2050, the MMA7360LT uniquely combines analog ratiometric outputs, dedicated 0g-Detect hardware interrupt, and sub-5 μA sleep current - making it optimal for cost-sensitive, battery-powered systems requiring deterministic freefall response without MCU intervention.
Availability
MMA7360LT is available at Aetrix Electronics and suitable for laptop anti-theft systems, portable media player drop protection, mobile phone motion interfaces, pedometers, and robotics motion sensing requiring stable component supply and long-term industrial availability.
Supply support for MMA7360LT 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 MMA7360LT belongs to Freescale's legacy MEMS accelerometer product line, designed specifically for ultra-low-power, cost-effective motion sensing in portable consumer electronics with integrated analog signal conditioning and hardware-assisted freefall detection.
FAQ
What is the operating voltage range for the MMA7360LT?
The MMA7360LT operates from 2.2 V to 3.6 V. Within this range, it maintains full calibration and specified performance - including sensitivity, zero-g offset, and bandwidth. Operation below 2.2 V or above 3.6 V may yield functional but uncalibrated output, and is not guaranteed per datasheet specifications. The MMA7360LT's ratiometric design ensures output scales linearly with VDD, simplifying integration with microcontrollers using shared reference voltages.
How does the 0g-Detect feature work on the MMA7360LT?
The 0g-Detect feature on the MMA7360LT asserts a logic-high signal on pin 9 when the absolute acceleration on all three axes (X, Y, Z) falls within ±0.4 g simultaneously. This hardware-level detection occurs internally with <2 ms latency and requires no firmware polling. It is specifically engineered for freefall scenarios - such as laptop drops - and directly interfaces to MCU interrupt pins. The MMA7360LT's 0g-Detect is factory calibrated and temperature compensated, eliminating need for software thresholds or dynamic recalibration.
Can the MMA7360LT be used in both ±1.5g and ±6g modes without changing external components?
Yes - the MMA7360LT supports seamless switching between ±1.5g (800 mV/g) and ±6g (206 mV/g) sensitivity modes using only the logic level on pin 10 (g-Select). No external resistors, capacitors, or firmware recalibration are needed. When g-Select is held low (or left floating, due to internal pull-down), the device defaults to ±1.5g mode. Driving pin 10 high selects ±6g mode. This dual-range capability allows one MMA7360LT design to serve both precision tilt sensing and high-g shock detection tasks.
What is the purpose of the Sleep Mode on the MMA7360LT, and how is it activated?
Sleep Mode reduces the MMA7360LT's supply current from 400 μA to 3 μA typical by disabling analog outputs and internal oscillator circuits. It is activated by driving pin 7 (Sleep) low; returning it high restores full operation within 0.5 ms. This mode is essential for extending battery life in always-on portable devices like pedometers or remote controls. Unlike software-controlled power-down in digital accelerometers, MMA7360LT's Sleep Mode is hardware-triggered and preserves configuration - no reinitialization is required upon wake-up.
Does the MMA7360LT require external passive components for basic operation?
The MMA7360LT requires only two external passive components for reliable operation: a 0.1 μF ceramic capacitor between VDD and VSS (placed adjacent to pin 6), and a 3.3 nF capacitor on each analog output (XOUT, YOUT, ZOUT) to suppress switched-capacitor filter clock noise. These values are specified in Freescale's AN3447 and AN3484. No external resistors, trim pots, or additional filtering components are needed - zero-g offset and sensitivity are factory trimmed, and the internal filter eliminates need for RC networks.
MMA7360LT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 14-TFLGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X, Y, Z
- Acceleration Range:
- ±1.5g, 6g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 800 (±1.5g) ~ 206 (±6g)
- Bandwidth:
- 400Hz (X,Y), 300Hz (Z)
- 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)
MMA7360LT FAQ
1.How can I place an order for MMA7360LT through Aetrix?
Please submit a Request for Quotation (RFQ) for MMA7360LT 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 MMA7360LT reliable?
The price and inventory of MMA7360LT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMA7360LT is usually 5 days.
3.What payment methods are accepted for MMA7360LT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMA7360LT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMA7360LT?
MMA7360LT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMA7360LT 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 MMA7360LT?
For technical support, including MMA7360LT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMA7360LT requirements.
6.How does Aetrix verify that MMA7360LT is sourced from the original manufacturer or authorized distributors?
All MMA7360LT 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 MMA7360LT meets industry standards.
7.What is the process for return or replacement of MMA7360LT?
All MMA7360LT units undergo pre-shipment inspection (PSI). If there is an issue with MMA7360LT, 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 MMA7360LT part is unused and in its original packaging.
Return procedure for MMA7360LT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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