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NXP Semiconductors MMA621010AKEGR2
- Part No.:
- MMA621010AKEGR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Accelerometers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MMA621010AKEGR2.pdf
- Description:
- ACCELEROMETER 100G ANALOG 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,177
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Product details
Overview
MMA621010AKEGR2 from NXP (formerly Freescale) is a dual-axis analog-output silicon capacitive accelerometer with ±100g full-scale range per axis, ratiometric voltage output, and integrated temperature sensor. It features 4-pole low-pass filtering at 400 Hz, over-damped transducer response, and operates from 3.3 V or 5 V supply - designed for crash detection and impact monitoring in automotive airbag systems.
For engineers reviewing the MMA621010AKEGR2 datasheet, MMA621010AKEGR2 pinout, MMA621010AKEGR2 application, or MMA621010AKEGR2 equivalent, key selection criteria include g-range symmetry (±100g X/Y), AEC-Q100 Grade 2 qualification (−40°C to +105°C), SOIC-20 Pb-free packaging, and ratiometric DAC output stability under supply variation.
Technical Context
The MMA621010AKEGR2 integrates micromachined g-cells for X and Y axes with on-chip digital signal processing (DSP) for offset trimming, gain calibration, and low-pass filtering. Its 4-pole SINC filter provides 400 Hz cutoff (−4 dB) and 353 Hz −3 dB point, synchronized via CAP/HOLD input for system-wide data capture timing.
It uses two independent DACs to convert processed acceleration data into ratiometric analog voltages (XOUT/YOUT), referenced to VCC and buffered by internal voltage regulator and dedicated analog ground (VSSA). Self-test activation (ST pin) induces known electrostatic force, producing ≥10% FS output shift verified across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full-Scale Range | ±100g per axis - enables high-g shock detection without saturation up to ±200g internal circuit limit |
| Output Type | Ratiometric analog voltage (XOUT/YOUT) - output scales linearly with VCC, eliminating need for separate reference |
| Low-Pass Filter | 4-pole, 400 Hz cutoff (−4 dB) - suppresses high-frequency noise while preserving crash pulse fidelity |
| Supply Voltage | 3.3 V or 5 V single supply - supports legacy 5 V automotive systems and modern 3.3 V microcontrollers |
| Operating Temperature | −40°C to +105°C - qualified to AEC-Q100 Grade 2 for under-hood and passenger compartment use |
| Self-Test Output Shift | ≥10% FS at 25°C, ≥10% FS at −40°C to +105°C - enables in-system functional verification without mechanical stimulus |
| Offset Error | 0.46×VCC to 0.54×VCC at 0g - tight centering reduces post-processing zero-g calibration effort |
Pinout & Package
Pb-free 20-pin SOIC package (Case 475A-02), 7.5 mm × 12.8 mm body, 1.27 mm pitch, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 11, 12, 19, 20 | N/C | No internal connection - must be left floating or tied to ground per layout best practice |
| 2, 15 | VSS | Digital ground return - requires low-inductance connection to PCB ground plane |
| 4 | VCC | Main power supply (3.3 V or 5 V) - bypassed with 1 μF capacitor to VSS |
| 5, 18 | XOUT / YOUT | Ratiometric analog outputs - each sourced from dedicated DAC, load-limited to 25 kΩ / 60 pF |
| 6, 14 | VPP / VSSA | Test supply / analog ground - VSSA must be isolated from digital ground and bypassed to VCC |
| 7, 13 | CAP/HOLD / SCLK | Data freeze control / reset clock - CAP/HOLD latches latest sample; SCLK unused unless initiating hardware reset |
| 8, 17 | CREGA / CREG | Analog/digital power rail filters - require 800–1000 nF low-ESR capacitors to VSSA/VSS respectively |
| 9, 10, 16 | CREF / ST / RESET | Reference filter / self-test enable / hardware reset - CREF ties to internal 1.25 V reference; ST activates electrostatic self-test; RESET asserts internal logic reset on 512 μs low pulse |
| 12 | STATUS | Fault indicator - open-drain output pulled high on parity error, over-temperature, clock fault, or reset |
Key Features
| Feature | Design Value |
|---|---|
| Full digital signal processing | On-chip DSP performs real-time offset trim, gain adjustment, and 4-pole filtering - eliminates external op-amp or MCU-based compensation |
| Over-damped transducer | Minimizes resonance-induced ringing during crash events - preserves pulse shape integrity for reliable deployment decision timing |
| Capture/hold synchronization | CAP/HOLD pin freezes XOUT/YOUT simultaneously - enables time-aligned sampling across multiple sensors or with safety MCU |
| Integrated temperature sensor | On-die thermal sensing supports temperature-compensated calibration in final application - no external thermistor required |
| AEC-Q100 Grade 2 qualification | Validated for automotive environments including thermal cycling, humidity, and mechanical shock - meets airbag system reliability requirements |
Applications
| Crash Detection (Airbag) | Impact Monitoring (Industrial) |
|---|---|
Use Scenario: Real-time deceleration measurement during frontal/side collision to trigger airbag deployment within 20–30 ms. IC Role / Device Role / Timing Role: Primary inertial sensing element providing analog acceleration signals to safing microcontroller or dedicated deployment IC. Use Value: ±100g range captures severe crash pulses without clipping; 400 Hz filter rejects road noise while preserving critical crash energy below 100 Hz. | Use Scenario: Continuous vibration and shock logging on heavy machinery, freight containers, or test fixtures. IC Role / Device Role / Timing Role: Analog front-end sensor feeding data to data logger or predictive maintenance controller. Use Value: Ratiometric output ensures stable readings across varying battery voltage; AEC-Q100 qualification guarantees operation in harsh industrial ambient conditions. |
| Shock Detection (Consumer Electronics) | Orientation Sensing (Safety Systems) |
Use Scenario: Detecting drop events or sudden impacts in portable medical devices, handheld test equipment, or rugged tablets. IC Role / Device Role / Timing Role: Event-triggered sensor enabling automatic data save, power-down, or diagnostic flagging. Use Value: Internal self-test (ST pin) allows factory and field verification of sensor functionality without mechanical actuation. | Use Scenario: Static tilt measurement for rollover detection in construction vehicles or platform leveling in mobile cranes. IC Role / Device Role / Timing Role: Dual-axis gravity vector resolver providing X/Y orientation relative to earth's gravitational field. Use Value: Tight 0g offset (0.46–0.54×VCC) and <1% FSR nonlinearity ensure accurate angle calculation across full temperature range. |
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 |
|---|---|---|---|
| ADXL206ARZ | Single-supply 5 V only; 2.5 g/2.5 g range; 1 kHz bandwidth; no integrated self-test | Lower g-range limits use to low-acceleration tilt/orientation; lacks crash pulse fidelity | Select when cost-sensitive, low-g precision tilt sensing is primary requirement and self-test is optional |
| MMA8452QT | I²C digital output; ±2g/4g/8g selectable range; embedded motion detection; 12-bit resolution | Requires host MCU with I²C interface; unsuitable for analog-signal-chain architectures | Select when digital integration, low power, or embedded feature set (tap detection, FIFO) outweighs need for analog output |
Compared with MMA621010AKEGR2, ADXL206ARZ offers higher bandwidth but cannot support ±100g crash detection, while MMA8452QT replaces analog output with digital interface and programmable features - neither matches the AEC-Q100-qualified ±100g analog performance and system-level synchronization (CAP/HOLD) of MMA621010AKEGR2.
Availability
MMA621010AKEGR2 is available at Aetrix Electronics and suitable for automotive safety systems, industrial impact monitors, and ruggedized portable electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MMA621010AKEGR2 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 Philips' semiconductor division, now specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The MMA62XX series was developed by Freescale (acquired by NXP in 2015) specifically for automotive occupant restraint systems, emphasizing analog signal integrity, AEC-Q100 reliability, and deterministic timing for airbag deployment decisions.
FAQ
What is the full-scale range specification for MMA621010AKEGR2?
The MMA621010AKEGR2 has a full-scale range of ±100g on both the X and Y axes, independently specified and trimmed during manufacturing. This range is optimized for high-g transient events such as automotive crashes, with internal circuitry capable of handling up to ±200g without saturation. The device maintains ≤1% FSR nonlinearity and 1.1 mg/√Hz noise density across its operating temperature range.
Does MMA621010AKEGR2 support both 3.3 V and 5 V supply operation?
Yes, MMA621010AKEGR2 supports single-supply operation at either 3.3 V (±0.15 V) or 5 V (±0.25 V), with full electrical specifications guaranteed across both rails. Its ratiometric analog outputs (XOUT/YOUT) scale directly with VCC, eliminating dependency on external voltage references. Supply current is typically 9.0 mA in analog-only configuration, and internal regulators stabilize CREG (2.5 V) and CREF (1.25 V) regardless of input voltage.
How does the CAP/HOLD function work on MMA621010AKEGR2?
The CAP/HOLD pin on MMA621010AKEGR2 freezes the analog output values at XOUT and YOUT on a low-to-high transition, holding them constant until the next sample update. This enables precise system-wide synchronization - for example, aligning acceleration capture with other sensors or MCU ADC conversions. When held low, outputs update continuously at the DSP sampling rate (~16 µs period); tying CAP/HOLD to VSS disables hold functionality entirely.
Is MMA621010AKEGR2 qualified for automotive applications?
Yes, MMA621010AKEGR2 is qualified to AEC-Q100 Rev. F Grade 2, covering operation from −40°C to +105°C ambient temperature. It undergoes stress testing for thermal cycling, humidity, mechanical shock (±1500 g powered, ±2000 g unpowered), and ESD (±2000 V HBM). Its SOIC-20 Pb-free package (475A-02) and integrated self-test support automotive safety-critical design requirements per ISO 26262 ASIL-B readiness.
What is the purpose of the STATUS pin on MMA621010AKEGR2?
The STATUS pin on MMA621010AKEGR2 is an open-drain fault indicator that drives high during internal fault conditions including parity errors, over-temperature (>+125°C junction), internal clock frequency deviation (>±5%), device reset, or initialization. It remains asserted until cleared by a low-to-high transition on the ST pin. After reset, STATUS enters high-impedance for ~800 μs, then goes high for 3 ms stabilization before becoming active - enabling robust system-level fault monitoring.
MMA621010AKEGR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MMA62XXAKEG
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Analog
- Axis:
- X, Y
- Acceleration Range:
- ±100g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- 4.68mV/V/g
- Bandwidth:
- 3kHz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 3.13V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
MMA621010AKEGR2 FAQ
1.How can I place an order for MMA621010AKEGR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMA621010AKEGR2 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 MMA621010AKEGR2 reliable?
The price and inventory of MMA621010AKEGR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMA621010AKEGR2 is usually 5 days.
3.What payment methods are accepted for MMA621010AKEGR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMA621010AKEGR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMA621010AKEGR2?
MMA621010AKEGR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMA621010AKEGR2 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 MMA621010AKEGR2?
For technical support, including MMA621010AKEGR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMA621010AKEGR2 requirements.
6.How does Aetrix verify that MMA621010AKEGR2 is sourced from the original manufacturer or authorized distributors?
All MMA621010AKEGR2 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 MMA621010AKEGR2 meets industry standards.
7.What is the process for return or replacement of MMA621010AKEGR2?
All MMA621010AKEGR2 units undergo pre-shipment inspection (PSI). If there is an issue with MMA621010AKEGR2, 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 MMA621010AKEGR2 part is unused and in its original packaging.
Return procedure for MMA621010AKEGR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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