NXP Semiconductors MMA2204EGR2

Overview

MMA2204EGR2 from NXP Semiconductors (formerly Freescale) is a surface-mount, silicon capacitive, micromachined ±100g single-axis X-direction accelerometer with integrated signal conditioning, 4th-order Bessel low-pass filter, and factory-calibrated self-test. It delivers ratiometric linear output (20 mV/g typical sensitivity), operates from 4.75–5.25 V, draws 5.0 mA typical supply current, and is qualified to AEC-Q100 Grade 2 (–40°C to +105°C) for automotive and industrial vibration monitoring.

For engineers reviewing the MMA2204EGR2 datasheet, MMA2204EGR2 pinout, MMA2204EGR2 application, or MMA2204EGR2 equivalent, key selection considerations include its SOIC-16 package with 4 active pins (ST, VOUT, STATUS, VDD/VSS), ±100g full-scale range, 360–440 Hz bandwidth, self-test fault-latching capability, and absence of external passive components for filter configuration.

Technical Context

The MMA2204EGR2 integrates a polysilicon g-cell transducer hermetically sealed at wafer level with a CMOS ASIC that implements switched-capacitor sensing, temperature compensation, and a 4-pole Bessel filter - preserving pulse shape integrity without external RC networks. Its output is ratiometric to VDD and centered at VDD/2 under zero-g conditions.

Self-test is initiated via logic-high ST pin, generating electrostatic deflection of the movable plate and producing a calibrated ΔVOFF ≈ 10g-equivalent output. The STATUS pin latches high on EPROM parity error, low-voltage detect (VLVD = 3.25 V typ), or clock monitor failure (fmin = 150–400 kHz), and resets only upon valid ST pulse unless fault persists.

Key Specifications

Pinout & Package

Package: 16-lead SOIC (Case 475-01), 7.5 mm × 10.3 mm body, 1.27 mm pitch, tape-and-reel packaging (R2 suffix). Only 4 terminals are functional; all others are no-connect (N/C) or factory trim.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-axis analog accelerometer applications.

Compared with ADXL326BCPZ-RL7 and MMA8452Q, the MMA2204EGR2 uniquely combines analog output simplicity, factory-calibrated self-test, and hardware-latched fault reporting in a rugged SOIC package - making it optimal for cost-sensitive, high-reliability industrial and automotive subsystems where deterministic analog behavior and diagnostic coverage are mandatory.

Availability

MMA2204EGR2 is available at Aetrix Electronics and suitable for vibration monitoring systems, hard disk drive protection circuits, and appliance motion control applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MMA2204EGR2 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 acquired Freescale in 2015 and continues to support legacy sensor products including the MMA series. NXP is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets.

The MMA2204EGR2 belongs to Freescale's legacy micromachined accelerometer product line, designed specifically for high-reliability analog sensing in automotive safety systems (e.g., airbag pre-crash detection) and industrial condition monitoring where self-test and fault visibility are mandatory.

FAQ

What is the function of the STATUS pin on the MMA2204EGR2?

The STATUS pin on the MMA2204EGR2 is an open-drain fault indicator that latches high when a fault occurs - including EPROM parity error, low-voltage detection (trip point 3.25 V typical), or clock monitor failure. It remains asserted until a valid rising edge is applied to the ST pin, provided the underlying fault condition has been resolved. This behavior enables persistent fault logging in safety-critical systems without continuous polling.

Does the MMA2204EGR2 require external passive components for basic operation?

No, the MMA2204EGR2 does not require external passive components for core operation. Its 4-pole Bessel filter is implemented using switched-capacitor techniques, eliminating the need for external resistors or capacitors to set cutoff frequency. However, a 1 kΩ resistor and 0.01 µF capacitor are recommended on VOUT to suppress 70 kHz clock noise, and a 0.1 µF capacitor is required on VDD for power supply decoupling per the datasheet layout guidelines.

What is the meaning of the "R2" suffix in MMA2204EGR2?

Per Freescale's ordering information, the "R2" suffix in MMA2204EGR2 denotes tape-and-reel packaging format - specifically, 16-lead SOIC devices supplied in standard industry reels for automated SMT placement. The electrical and functional specifications are identical to the tube-packaged MMA2204EG variant; only the packaging method differs.

Can the MMA2204EGR2 measure acceleration in directions other than the X-axis?

No, the MMA2204EGR2 is a single-axis X-direction accelerometer. Its sensing element is oriented to respond only to acceleration along the +X axis as defined in the package outline (pin 1 corner, top view). Acceleration applied perpendicular to this axis produces ≤10% transverse sensitivity (VXZ,YZ), which is specified as a rejection metric - not a usable measurement channel. For multi-axis sensing, discrete units or integrated multi-axis ICs must be used.

Is the MMA2204EGR2 RoHS compliant and lead-free?

Yes, the MMA2204EGR2 is RoHS compliant and lead-free. The datasheet explicitly identifies the "KEG" suffix variants (including MMA2204KEGR2) as Pb-free, and the MMA2204EGR2 shares the same SOIC-16 package (Case 475-01) and manufacturing flow. NXP maintains full compliance documentation for this part family under its environmental policy, with exemption status aligned to EU Directive 2011/65/EU Annex III.