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MMA5124KW - ±240g Z-Axis PSI5 Inertial Sensor | NXP
The NXP Semiconductors MMA5124KW is a SafeAssure PSI5 Version 1.3-compatible, overdamped Z-axis satellite accelerometer with a ±240g full-scale range, housed in a 16-pin QFN (6x6 mm) package. It belongs to the Xtrinsic MMA51xxKW family of AKLV27-compatible satellite sensors designed for harsh automotive crash detection environments. The device operates from a 4.2V to 17V supply, integrates on-chip signal conditioning, and communicates via the PSI5 (Peripheral Sensor Interface) v1.3 protocol over a two-wire current-loop interface. An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes; the MMA5124KW specifically senses acceleration along the Z-axis only. Within the broader sensor taxonomy, the part belongs to the class of single-axis high-g accelerometers used in automotive airbag and satellite-sensor subsystems. The PSI5 interface (Peripheral Sensor Interface, version 1.3) is a standardized digital communication protocol widely adopted in automotive safety electronics for connecting remote satellite crash sensors to a central airbag control unit (ACU). Key specifications of the MMA5124KW include a ±240g measurement range, overdamped mechanical frequency response designed for crash pulse capture, integrated PSI5 v1.3 transmitter, on-chip EEPROM for calibration, low-power standby mode, and SafeAssure functional-safety documentation. The device's overdamped response avoids saturation from the high-frequency, high-amplitude crash pulses typical of airbag deployment scenarios. The MMA5124KW is built on NXP's high-g MEMS process with a sealed cavity QFN package qualified to automotive grade requirements. Its integrated PSI5 interface eliminates the need for an external ADC, simplifying satellite module design. The device supports daisy-chain topologies and offers 10-bit Manchester-coded PSI5 data transmission with configurable sampling rates. Typical applications include front and side airbag satellite sensors, pedestrian protection impact modules, and peripheral crash detection nodes. The 16-QFN (6x6) package suits compact PCB layouts typical of satellite sensor modules mounted at vehicle periphery locations. When designing with this part, observe PSI5 bus termination and synchronization timing as specified in the NXP datasheet. Use the integrated EEPROM for per-module calibration to compensate mounting-position tolerances. Maintain supply decoupling within 5 mm of the VCC pin and follow NXP's reference layout for EMI/ESD performance under automotive conditions. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. The MMA5124KW is engineered for AKLV27 protocol compatibility, enabling retrofit into existing automotive safety architectures.
MMA5148KW - ±480g Z-Axis PSI5 Satellite Accelerometer | NXP
The NXP Semiconductors MMA5148KW is a ±480g Z-axis (vertical-axis) overdamped satellite accelerometer designed for PSI5 (Peripheral Sensor Interface 5) and AK-LV27 in-vehicle networks. It is part of the Xtrinsic MMA51xxKW family of SafeAssure sensors, housed in a 16-pin QFN (6x6 mm) surface-mount package. The device supports supply voltage of 4.2V to 17V and uses PCM/SPI digital output for high-speed communication with the satellite ECU. An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes. In automotive safety systems, satellite accelerometers like the MMA5148KW reside in peripheral nodes (crash zones, doors, pillars) and transmit inertial data to a central airbag control unit (ACU). The PSI5 protocol is an open standard for point-to-point sensor interfaces widely used in airbag, seatbelt pretensioner, and pedestrian protection systems. Key features include ±480g full-scale measurement range, overdamped mechanical response for accurate pulse detection, 16-QFN small outline package, and a wide operating temperature range suitable for under-hood and crash-zone deployment. The device is part of the NXP SafeAssure functional-safety program (FMEDA and safety manuals available), supporting ISO 26262 ASIL ratings when integrated properly. Architecturally, the MMA5148KW integrates a MEMS g-cell with a CMOS ASIC that provides signal conditioning, temperature compensation, and a digital PSI5 interface. The overdamped sensor element reduces mechanical ringing after high-g events, enabling the central ECU to discriminate multiple crash pulses that occur within milliseconds. Typical applications include front and side airbag satellite sensors, crash detection modules, seatbelt pretensioner sensors, and pedestrian protection accelerometer nodes. Its PSI5 compatibility allows direct connection to NXP, Infineon, Renesas, and other automotive-grade airbag controllers. When designing with this device, follow NXP's reference layout in the datasheet, place decoupling capacitors within 2 mm of the supply pins, and validate the PSI5 bus timing against the v1.3 specification to ensure interoperability with the target ECU. The device is qualified to AEC-Q100, making it suitable for automotive production. This page synthesizes distributor pricing, drop-in alternatives within the MMA51xx family, and practical design notes not found in a single manufacturer page, giving engineers a consolidated reference for satellite accelerometer selection.
MMA5148KWR2 - Z-Axis 480g PSI5 Accelerometer | NXP
The NXP MMA5148KWR2 is a Z-axis, ±480g-range overdamped silicon MEMS accelerometer from the Xtrinsic MMA51xxKW PSI5 family, housed in a 16-pin QFN (6x6 mm) package. Designed as a SafeAssure solution for automotive satellite sensor applications, it is AKLV27 and PSI5 Version 1.3 compatible, with the full-scale range and bandwidth optimized for satellite crash-sensing use cases. The device communicates over the PSI5 (Peripheral Sensor Interface 5) two-wire current-loop protocol commonly used in airbag and restraint systems. An accelerometer is a micro-electromechanical sensor that measures proper acceleration (the rate of change of velocity) along one or more axes. The MMA51xxKW family sits within the broader taxonomy of inertial sensors, sitting beside gyroscopes in the IMU (Inertial Measurement Unit) category. Within the accelerometer family, the MMA51xxKW parts are single-axis (Z-axis only) overdamped devices specifically tuned for the high-shock, high-bandwidth regime of automotive crash sensing, where they must remain accurate under sustained vibration and instantaneous g-loads. Key features include a ±480g full-scale range, overdamped mechanical response for crash-pulse fidelity, on-chip PSI5 transponder, optional Manchester-coded or PSI5-A/B/C operating modes, and a wide operating temperature range. The 16-QFN (6x6 mm) package supports surface-mount assembly with an exposed pad for thermal dissipation, and the part is qualified to automotive quality standards typical of NXP SafeAssure family members. The KWR2 suffix denotes tape-and-reel packaging. At the architecture level, the device integrates a MEMS sensing element with a signal-conditioning ASIC in a single overmolded QFN. The overdamped mechanical transfer function eliminates high-Q resonant ringing, which is critical when capturing short-duration crash pulses; a less-damped sensor would ring and corrupt the deceleration profile read by the satellite ECU. Typical applications include front and side airbag satellite sensors, restraint-system electronic control units, and PSI5 daisy-chain satellite modules. It is also used in body and chassis electronic safety systems. When designing with this part, engineers should pay close attention to the PSI5 synchronization and parity protocol, the daisy-chain initialization sequence, and the requirement to configure the g-slave address range during ECU bring-up.
MMA5206KW - PSI5 X-Axis 60g Accelerometer | NXP Semiconductors
The NXP Semiconductors MMA5206KW is a PSI5 (Peripheral Sensor Interface 5) inertial sensor designed as a single-axis X-direction accelerometer with a full-scale range of ±60g and a 400 Hz maximum bandwidth, housed in a 16-pin QFN (6x6 mm) package with exposed pad. It belongs to the NXP Xtrinsic MMA52xxKW family of automotive-grade inertial sensors and operates over a wide 5V/9V/12V/15V supply range with automotive temperature grade. An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes and outputs a signal proportional to that force, enabling detection of motion, tilt, vibration, and shock. Within the broader sensor taxonomy, a single-axis accelerometer like the MMA5206KW sits under MEMS motion sensor -> accelerometer -> inertial measurement unit -> sensor -> semiconductor. PSI5 is an automotive sensor interface standard used to power the sensor and transmit synchronous or asynchronous sensor data on the same two-wire bus at 125 kbps, eliminating dedicated signal wires. Key features of the MMA5206KW include ±60g full-scale range for high-shock sensing, 400 Hz signal bandwidth, automotive temperature grade qualification, integrated PSI5 transceiver with on-chip sync/transmit logic, and a small 6x6 mm QFN-16 footprint suitable for space-constrained safety-critical modules. The exposed thermal pad improves thermal coupling and mechanical stability when soldered to a PCB ground pour. Technically, the device combines a MEMS g-cell with a mixed-signal ASIC that performs amplification, offset compensation, and PSI5 protocol generation. A key design consideration is the external capacitor on the VCC node for energy storage during PSI5 synchronization pulses. According to the manufacturer datasheet, this capacitor is required because PSI5 supplies the sensor through a current-limiting resistor, and the sensor must buffer the charge internally. Typical applications include airbag front crash sensors, side-impact satellite sensors, rollover detection modules, and pedestrian-protection impact sensors. The ±60g range suits high-deceleration crash events while the PSI5 interface supports daisy-chained wiring common in airbag electronic control units. When designing with this part, place the VCC storage capacitor as close as possible to pin 1 with a low-ESR ceramic, and route the IDATA line through the recommended PSI5 current-setting resistor. Verify the synchronization timing budget because PSI5 is a time-deterministic protocol that requires precise bus arbitration among multiple satellite sensors.
MMA5212AKW - ±120g PSI5 X-Axis Accelerometer | NXP
The NXP Semiconductors MMA5212AKW is an overdamped X-axis satellite accelerometer supporting PSI5 V1.3 asynchronous mode, with a full-scale range of ±120 g, housed in a 16-pin QFN (6 x 6 mm) HQCCN package. It belongs to the Xtrinsic MMA52xxAKW family, a SafeAssure functional-safety solution targeting automotive airbag and passive-safety satellite sensor nodes. Background: A PSI5 accelerometer is a peripheral satellite sensor (PSS) in an automotive restraint system that communicates over the PSI5 (Peripheral Sensor Interface 5) two-wire current-loop bus. It converts mechanical acceleration into a digital PSI5 frame that the central airbag ECU uses to decide when to deploy restraints. The hierarchy is: accelerometer -> inertial sensor -> motion sensor -> MEMS sensor -> semiconductor IC. The X-axis designation indicates single-axis sensing along one in-plane axis, making the device ideal for frontal or peripheral impact detection modules. Key features include 16-bit data output representation, a sensitivity of approximately 0.244 mV/g (based on 120 g full-scale), a typical 5.0 V supply rail, and automotive-grade qualification (AEC-Q100). The overdamped mechanical transducer suppresses high-frequency vibration, eliminating aliasing noise before the digital PSI5 frame is transmitted. The 16-QFN (6 x 6 mm) HQCCN package provides a small PCB footprint suitable for tight satellite-module enclosures. Technically, the device integrates a MEMS proof-mass transducer with a sigma-delta conversion chain and an embedded Manchester-coded PSI5 transceiver. Synchronization and data framing are managed by an on-chip state machine, and the part supports external sync pulses from the ECU for time-multiplexed multi-satellite configurations. Internal diagnostics and SafeAssure documentation assist ISO 26262 system integration at the ECU level. Typical applications include front airbag satellite sensors, side-impact satellite modules, and pedestrian-protection satellite accelerometers that require a PSI5 interface. The automotive operating range and SafeAssure positioning also make it suitable for rollover detection satellite nodes. When designing with the MMA5212AKW, ensure correct PSI5 bus termination per the PSI5 V1.3 specification, observe TVS protection on the two-wire interface, and follow NXP's recommended PCB footprint for the HQCCN-16 6 x 6 mm package. Refer to the manufacturer datasheet for the latest initialization timing diagrams and sync-modes table. This page synthesizes distributor pricing, same-family PSI5 alternatives, and practical design notes not consolidated in the manufacturer datasheet.
MMA5212AKWR2 - ±120g X-Axis PSI5 Satellite Accelerometer | NXP
The NXP MMA5212AKWR2 is a single-axis, X-lateral MEMS accelerometer with a ±120g full-scale range, designed as a peripheral airbag satellite sensor that communicates over the PSI5 (Peripheral Sensor Interface 5) Version 1.3 asynchronous-mode bus. Housed in a 16-pin QFN exposed-pad package (6 mm × 6 mm), the device combines an overdamped MEMS sensing element with a built-in ASIC that performs on-chip signal conditioning, temperature compensation, and PSI5 frame formatting. An accelerometer is a micro-electromechanical sensor that converts physical acceleration into a measurable electrical signal. Within the broader sensor hierarchy, it sits at the inertial sensor family, sharing the category with gyroscopes, magnetometers, and 6-axis IMUs. The MMA52xxAKW family is positioned at the automotive-grade peripheral satellite node in a PSI5 airbag network, where it reports crash-relevant deceleration events to a central airbag ECU. Key features include a 5 V / 9 V / 12 V / 15 V compatible PSI5 interface, internal self-test, automotive temperature grade qualification, and a -40 °C to +125 °C operating range. The overdamped mechanical transfer function suppresses high-frequency vibration that would otherwise cause false crash triggers in rough-road or door-slams scenarios. The device is a NXP SafeAssure solution, meaning it has been developed and documented under NXP's functional-safety process to support ISO 26262 systems. Architecturally, the part uses a capacitive MEMS proof mass with sigma-delta conversion and digital post-processing, which provides low noise and stable sensitivity over temperature without external trimming. The PSI5 peripheral mode frames deliver acceleration data, status bits, and a 10-bit temperature word each synchronization cycle. Typical applications include front or side satellite airbag sensors, pedestrian protection modules, and chassis-condition monitoring nodes. Design considerations include placing the recommended 2.2 nF / 470 pF / 15 nF external capacitor network (C1–C5) within a few millimeters of the supply and data pins to maintain PSI5 signal integrity and EMC margins. This page consolidates distributor pricing, drop-in cross-family alternatives, and PCB layout notes the NXP safety manual only summarizes, so engineers can validate sourcing and footprint fit on a single page.
MMA5212KW - ±120g X-Axis PSI5 Satellite Accelerometer | NXP
The NXP MMA5212KW is an overdamped single-axis X-axis satellite accelerometer with ±120g full-scale range, 400 Hz bandwidth, and PSI5 (Peripheral Sensor Interface 5) Version 1.3 compatible digital output, housed in a 16-pin QFN (6x6 mm) package with exposed pad. It is a member of the Xtrinsic MMA52xxKW family, a SafeAssure functional-safety solution, and is AKLV27 protocol compatible for airbag satellite applications. The device operates from a single 5V/9V/12V/15V supply rail selectable by protocol command, integrates a g-cell MEMS sense element with a Sigma-Delta ADC, and outputs an 11-bit Manchester-coded PSI5 digital frame. A satellite accelerometer is a single-axis MEMS sensor mounted at the periphery of a vehicle (e.g., door pillar, bumper reinforcement, or seat rail cross-member) that detects crash-pulse deceleration early in an event and reports it to a central airbag ECU over a two-wire current-loop PSI5 bus. The MMA5212KW belongs to the inertial sensor -> accelerometer -> MEMS accelerometer -> safety sensor taxonomy and is qualified to automotive-grade temperature ranges (-40C to +125C) with full AEC-Q100 conformance. Key features include overdamped mechanical response (no resonance peak within the 400 Hz bandwidth), user-selectable 5V/9V/12V/15V supply rail (PSI5 V1.3 compliance), 11-bit output resolution plus optional 2-bit self-test/status, integrated diagnostics, and SafeAssure documentation. The exposed thermal pad (EP) provides a low-resistance thermal path to PCB copper, essential for reliable operation across automotive temperature extremes. Typical applications include front and side impact satellite sensors, airbag ECU peripheral nodes, pedestrian protection bumper-mounted sensors, and seat rail occupant classification systems. The PSI5 Manchester-coded two-wire interface allows daisy-chaining of multiple satellites on one ECU input, simplifying wiring harness complexity. When designing with this device, ensure the PSI5 current-loop termination resistor and blocking capacitor values follow the PSI5 V1.3 specification. The exposed pad must be soldered to a continuous PCB copper ground plane to meet the AEC-Q100 thermal-cycling and mechanical-shock reliability targets.
MMA5212KWR2 - 120g X-Axis PSI5 Inertial Sensor | NXP Semiconductors
The NXP Semiconductors (formerly Freescale) MMA5212KWR2 is a 120g range, single-axis (X-axis) overdamped PSI5-compatible inertial accelerometer housed in a 16-pin QFN (6x6) package with exposed thermal pad. The device is part of the Xtrinsic MMA52xxKW SafeAssure family, supports AKLV27 and PSI5 Version 1.3 protocols, and is qualified for automotive satellite crash-sensing applications. It operates with supplies of 5V, 9V, 12V, and 15V, which are the standard PSI5 power modes supported by airbag ECU receivers. A PSI5 Inertial Sensor is a self-contained satellite accelerometer that communicates with the host ECU over the Peripheral Sensor Interface 5 (PSI5) automotive standard, a two-wire current-loop interface widely adopted for airbag front and side satellite crash sensors. Within the broader sensor taxonomy, PSI5 inertial sensors belong to MEMS accelerometers, which fall under the accelerometer, motion sensor, and inertial measurement unit family (accelerometer -> motion sensor -> inertial sensor -> MEMS sensor -> semiconductor). The PSI5 standardized bus allows multiple sensors to share wiring and simplifies airbag restraint system architecture. Key features of the MMA5212KWR2 include a +/-120g full-scale measurement range, low-pass overdamped frequency response optimized for crash pulse capture, integrated PSI5 Manchester/Half-Bit data transmission, on-board self-test capability, and AKLV27 protocol compatibility. The accelerometer's overdamped mechanical transfer function eliminates the need for external low-pass filtering for crash pulse characterization, while integrated EEPROM stores calibration coefficients for sensitivity and offset compensation at production trim. Architecturally, the device integrates a surface-micromachined MEMS proof mass, a sigma-delta front-end, and a PSI5 transceiver with on-chip temperature compensation. The overdamped mechanical response is engineered to have a flat frequency response within the airbag crash-pulse bandwidth, while PSI5 synchronization supports time-multiplexed operation of up to four satellite sensors on a single ECU channel. The MMA5212KWR2 is specified for the automotive temperature grade (-40C to +125C). Typical applications include front and side airbag satellite crash sensors, seatbelt pretensioner sensors, knee airbag occupant detection, and pedestrian protection impact detection units. AEC-Q100 qualification, combined with PSI5 interoperability, makes the part particularly well-suited for distributed airbag architectures where each sensor is positioned remotely from the central ECU and communicates reliably over a single twisted pair. When designing with this device, follow the PSI5 bus wiring topology (twisted pair, daisy-chain or parallel configuration) and observe the ECU receiver synchronization requirements. Proper PCB layout includes a star ground reference, robust power supply decoupling at the device, and routing discipline to keep the PSI5 pair away from high-current switching traces to preserve signal integrity for crash-event measurement. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not aggregated in any single manufacturer datasheet view.
MMA5224AKW - 240g X-Axis PSI5 Inertial Accelerometer | NXP
The NXP MMA5224AKW is a PSI5-protocol X-axis inertial accelerometer with a ±240g full-scale range, housed in a 16-pin QFN (6x6 mm) package. It belongs to the Xtrinsic MMA52xxAKW family of automotive-grade sensors designed for crash detection and chassis control. The device integrates a MEMS sensing element with a SPI-compatible PSI5 (Peripheral Sensor Interface 5) digital interface supporting 10 kHz to 189 kHz baud rates. An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes, converting mechanical motion into an analog or digital electrical signal. In the automotive electronics hierarchy, an accelerometer is a sub-category of motion sensors (itself a subset of inertial measurement units and sensors), used to detect vehicle dynamics events such as frontal crash, side impact, or rollover. The MMA52xxAKW family specifically targets airbag restraint systems and active chassis systems that demand deterministic, low-latency sensor communication. Key features include a ±240g measurement range, 10 kHz to 189 kHz programmable PSI5 communication baud rate, on-chip signal conditioning, and a self-test capability. The 16-QFN package provides a low-profile footprint suitable for space-constrained ECU modules mounted behind the bumper or under the seat. The sensor operates from a 5V, 9V, 12V, or 15V supply, accommodating typical automotive bus voltages without external regulation. Technically, the MMA5224AKW uses a surface-micromachined MEMS proof mass with capacitive sensing and a sigma-delta conversion chain. Internal calibration compensates for offset and gain over the -40C to +125C automotive temperature range, providing stable bias and sensitivity without host-side correction. The PSI5 protocol guarantees synchronous data sampling and a deterministic latency that is critical for airbag firing decisions. Typical applications include airbag systems (front, side, and rollover detection), electronic stability control, seatbelt pretensioners, suspension control modules, and pedestrian protection impact sensors. Designers choose this part when an automotive safety system requires a certified PSI5 sensor with high-g measurement capability. When designing with the MMA5224AKW, follow NXP's reference layout for the 16-QFN exposed pad - the thermal pad must be soldered to a copper pour for mechanical stability and EMI performance. Verify that the host MCU supports PSI5 v1.3 or v2.1 framing, and respect the synchronization timing window during bus arbitration. This page synthesizes distributor pricing, drop-in alternatives from the same Xtrinsic family, and practical layout guidance not found in the standalone datasheet.
MMA5224AKWR2 - ±240g X-Axis PSI5 Accelerometer | NXP
The NXP Semiconductors MMA5224AKWR2 is a Xtrinsic MMA52xxAKW PSI5 (Peripheral Sensor Interface 5) inertial sensor designed for single-axis X-direction acceleration measurement, housed in a 16-pin QFN (6x6 mm) package. The device measures ±240 g full-scale range, operates from a 4.2 V to 17 V supply, and is targeted at airbag deployment and chassis control applications in automotive safety systems. An accelerometer is a micro-electromechanical systems (MEMS) sensor that converts linear acceleration into an analog or digital electrical signal. In the broader sensor hierarchy, the MMA5224AKWR2 belongs to the high-g inertial sensor family used for crash detection, sitting between low-g motion sensors (used for tilt/inclinometer applications) and angular-rate gyroscopes. It is part of the wider power management and sensor ecosystem in modern automotive electronic stability systems. Key differentiating features include ±240 g measurement range optimized for frontal-impact airbag crash sensing, PSI5 v2.0 protocol compatibility for automotive sensor-peripheral interfacing, integrated Manchester/parasitic SPI modes for legacy compatibility, and AEC-Q100 automotive qualification. The device supports a 4.2 V to 17 V unregulated supply voltage rail commonly available from the vehicle's 12 V battery bus. The MMA5224AKWR2 uses a MEMS transducer with a capacitive sensing element and dedicated ASIC signal chain that performs amplification, temperature compensation, and PSI5 frame encoding on-chip. The internal oscillator and Manchester decoder allow direct connection to an airbag control unit (ACU) over a two-wire PSI5 bus, reducing wiring harness complexity. The 16-QFN package provides a small board footprint with excellent thermal dissipation for under-hood mounting. Typical applications include front airbag crash sensors, side-impact pressure/event sensors, seatbelt pretensioner sensors, and chassis control rollover detection. The wide operating temperature range and AEC-Q100 qualification suit it also under the hood and within safety-critical restraint systems. When designing with this part, engineers should follow NXP's PSI5 bus termination and synchronization timing guidelines to maintain EMC compliance. Power decoupling and reverse-polarity protection at the supply input are also recommended per the datasheet application circuit. This page synthesizes distributor pricing, pin-compatible MMA52xx family alternatives, and practical design notes not found in the manufacturer datasheet alone.
MMA5224KW - ±240g X-Axis PSI5 Satellite Accelerometer | NXP
The NXP MMA5224KW is an overdamped X-axis satellite accelerometer from the Xtrinsic MMA52xxKW family, supporting AKLV27 and PSI5 Version 1.3 protocols with ±240 g full-scale range, supplied in a 16-pin QFN (HQCCN) 6x6 mm package. It is a SafeAssure solution targeting airbag crash-sensing satellite modules where high-g events must be digitised and reported over the PSI5 current-loop bus to a central airbag ECU. An accelerometer is a micro-electro-mechanical (MEMS) sensor that converts linear acceleration into an analog or digital output proportional to displacement of a proof mass. Within the broader automotive sensor hierarchy, the MMA5224KW sits in the high-g (>100 g) crash-sensor hypernym tier above low-g vehicle dynamics sensors (e.g., electronic stability control) and below gyroscopes, IMUs, and full 6-DOF inertial measurement units. It is an axis-specific (single-axis X) over-damped sensor, a category valued in airbag systems for flat phase response and pulse fidelity during a crash event lasting 5-70 ms. Key features include an integrated PSI5 v1.3 transceiver with 10-bit data length, Manchester coding, and selectable bit rates of 125 kbps or 250 kbps; onboard synchronous sampling; bidirectional communication; and 16 programmable PSI5 addresses. The device operates from a regulated 5 V supply on a low-power Manchester-coded current loop, with a typical standby current well below 1 mA to avoid draining the satellite wiring harness during ignition-off crash sensing. Internally, the MMA52xxKW die uses a hermetically-sealed silicon bulk-micromachined proof mass with capacitive differential readout, sigma-delta conversion, and a digital PSI5 communication block. Over-damped mechanical response is deliberately chosen (versus critically-damped) to avoid ringing artefacts at the airbag ECU's crash-algorithm input, providing cleaner pulse reconstruction than under-damped competitor parts. Typical applications include front, side, and rear impact satellite crash sensors, pedestrian protection satellite modules, and AKLV27 vehicle network peripherals. The 16-QFN (6x6) package carries automotive-grade qualification (AEC-Q100) needed for under-bumper or seat-mounted satellite placement. Designers must route the PSI5 two-wire current loop as a twisted pair back to the ECU, maintain the recommended decoupling network close to VDD, and respect the absolute maximum acceleration rating to avoid latched mechanical damage. This page synthesises XAIPART distributor pricing, drop-in alternative MPNs, and practical PCB implementation notes not found on the single distributor listings.
MMA621010AEG - ±100g Dual-Axis Analog Accelerometer | NXP
The NXP MMA621010AEG is a dual-axis (X and Y) silicon capacitive, micromachined analog accelerometer with a ±100 g measurement range, housed in a 20-pin SOIC wide-body (SOIC-20) package. It operates from a single 3.3 V or 5 V supply and delivers an analog output sensitivity of 4.68 mV/V/g, making it suitable for high-shock event capture in automotive and industrial systems. An accelerometer is a micro-electromechanical sensor (MEMS) that measures proper acceleration along one or more axes, converting mechanical inertial force into an electrical signal proportional to g-force. Within the sensor hierarchy, an accelerometer belongs to the inertial sensor family, which also includes gyroscopes and IMUs (inertial measurement units); it sits at the lowest tier of motion-sensing signal chain components, downstream of the mechanical event and upstream of an ADC or microcontroller for digital conversion. Key features of the MMA621010AEG include integrated digital signal processing for filter, trim, and data-formatting functions; over-damped transducer response to suppress resonance-induced errors; and a -40 °C to +105 °C operating range for automotive underhood and chassis deployments. The 20-pin SOIC wide package simplifies PCB layout compared to smaller LGA footprints used in many competing parts. Technically, the device combines a surface-micromachined capacitive sense element with a sigma-delta modulation stage and decimation filter, yielding a flat ±100 g dynamic range with deterministic g-to-voltage transfer. Internal factory calibration sets zero-g offset and sensitivity, so most applications can omit external compensation. The dual-axis X-Y orientation simplifies system BOM by replacing two single-axis parts. Typical applications include airbag deployment sensors, electronic stability control (ESC) rollover detection, vehicle dynamic control (VDC) modules, anti-lock braking systems (ABS), industrial vibration monitoring, and crash recorders. The 4.68 mV/V/g sensitivity at 5 V yields about 23.4 mV/g, which is convenient for direct ADC sampling without additional amplification. When designing with this part, allocate at least 10 mm² of copper ground pour beneath the package thermal/epad to manage self-heating and to reduce coupled electrical noise. Use a low-impedance analog supply with a 100 nF ceramic bypass within 5 mm of the VDD pin; avoid routing digital switching signals across the die shadow to prevent coupled disturbance into the analog output. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes that are not aggregated in the manufacturer datasheet, providing engineers a single-decision resource for selecting and sourcing the MMA621010AEG.
MMA6231Q - ±10g Dual-Axis Micromachined Accelerometer | NXP
The NXP MMA6231Q is a ±10g dual-axis capacitive micromachined accelerometer integrated circuit with on-chip signal conditioning, a 1-pole low-pass filter and factory-set temperature compensation, housed in a 16-pin QFN-EP (6 mm × 6 mm) surface-mount package. It senses acceleration along the X and Y axes, operates from a single 3.3 V supply (2.7 V to 3.6 V range), and delivers a nominal sensitivity of 120 mV/g with a measured range documented from 111 mV/g to 129 mV/g across parts. Output zero-g offset, full-scale span and filter cut-off frequency are factory-trimmed, so no external components are required beyond supply-decoupling capacitors. A micromachined accelerometer is a MEMS (Micro-Electro-Mechanical Systems) device that converts acceleration into a measurable electrical signal using a suspended proof mass whose capacitance changes under inertial force; signal conditioning ASICs then convert this into an analog voltage proportional to acceleration. The MMA6231Q belongs to the broader family of motion and position sensors, sitting under inertial sensors → accelerometers → surface-mount MEMS accelerometers. The device is qualified for lead-free and RoHS-compliant assembly, with self-test capability verifying the full signal path. Key features include a ±10 g full-scale range, typical 120 mV/g sensitivity, 300 Hz bandwidth (with internal low-pass filter cut-off settable within this range), a wide supply range of 2.7 V to 3.6 V, very low current consumption (typically a few mA during operation), and an internal self-test mechanism that electronically deflects the proof mass to validate sensor and ASIC functionality. The factory-trimmed architecture eliminates per-board calibration for many consumer and industrial tilt, vibration and motion-detect applications. At its core, the MMA6231Q uses a capacitive bridge sensing cell whose differential output is amplified, filtered and offset-adjusted by on-chip CMOS analog front-end circuitry. The 1-pole RC low-pass filter limits high-frequency mechanical and electrical noise. Because zero-g offset, sensitivity and filter cut-off are laser-trimmed at the factory, part-to-part variation is significantly reduced compared to discrete MEMS solutions requiring external calibration. Typical applications include tilt and inclination sensing, vibration monitoring, appliance and industrial equipment motion detection, automotive security systems, consumer electronics orientation, and general-purpose dual-axis motion and position sensing. The small 6 × 6 mm QFN package is well suited to compact PCB layouts where board space is constrained. When designing with this part, place the recommended 0.1 µF supply-decoupling capacitor as close to the VDD and GND pins as possible to minimize digital noise coupling. For accurate tilt measurements, mount the device on a vibration-isolated section of the board so that high-frequency PCB vibrations do not alias into the measurement band. This page synthesizes distributor availability, drop-in alternatives, application examples and design notes beyond the manufacturer datasheet to accelerate component evaluation and PCB redesign tasks.
MMA6231QR2 - ±10g Dual-Axis MEMS Accelerometer | NXP
The NXP MMA6231QR2 is a ±10g dual-axis (X, Y) capacitive micromachined accelerometer with integrated signal conditioning, a 1-pole low-pass filter, and factory-calibrated temperature compensation, housed in a 16-pin QFN-EP (6x6 mm) package with an exposed thermal pad. It measures acceleration along two perpendicular axes with a 300 Hz bandwidth and outputs an analog ratiometric signal scaled to the supply voltage. An accelerometer is a MEMS (micro-electromechanical systems) sensor that measures proper acceleration - the rate of change of velocity relative to free-fall - typically using a proof mass suspended by compliant springs whose displacement is sensed capacitively. The MMA6231QR2 belongs to the broader category of inertial sensors (accelerometers, gyroscopes, IMUs) under motion sensors, providing tilt, vibration, shock, and orientation data for embedded systems. It is the sensing front-end in a signal chain that typically feeds an ADC, microcontroller, or analog control loop. The ratiometric analog interface simplifies integration with 3.3 V or 5 V ADCs and MCU ADCs without level shifting. Key features include ±10g full-scale acceleration span, factory-set zero-g offset (no external trim required), 1-pole low-pass filter for noise bandwidth control, on-chip temperature compensation across -20C to +85C, and self-test capability activated through an external pin. The capacitive sensing cell produces a differential analog output proportional to applied acceleration, while the integrated ASIC amplifies, demodulates, and filters the signal before driving the output pin. The exposed thermal pad (EP) on the QFN-16 package provides a low thermal resistance path to PCB copper, improving mechanical stress relief and thermal dissipation in vibration/shock sensing. Typical applications include industrial vibration monitoring, tilt/inclination sensing for industrial controls, free-fall detection in hard-disk drives and portable electronics, automotive non-safety motion sensing (body electronics, headrest positioning, climate controls), gaming and pointing devices, and appliance anti-vibration control. Designers should observe the supply-voltage ratiometric behavior when calculating sensitivity, and add the recommended bypass capacitor close to VDD to suppress digital logic noise from coupling into the analog output. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.
MMA6233QR2 - ±10g Dual-Axis Micromachined Accelerometer | NXP
The NXP MMA6233QR2 is a low-cost, capacitive micromachined dual-axis accelerometer with ±10g full-scale range, signal conditioning, a 1-pole low-pass filter, and temperature compensation, housed in a 16-pin QFN-EP (6x6 mm) package. It senses acceleration along the X and Y axes, providing an analog output proportional to applied g-force, with a bandwidth up to 900 Hz. An accelerometer is a micro-electromechanical systems (MEMS) sensor that measures the change in velocity (acceleration) along one or more axes, converting mechanical motion into an electrical signal. The MMA6233QR2 belongs to the MEMS accelerometer family, which sits within the broader hierarchy of motion sensors, then sensors, and finally the semiconductor product category. MEMS capacitive accelerometers detect motion by sensing the displacement of a proof mass between capacitive plates - a differential capacitance change that is demodulated and amplified to produce an analog voltage proportional to acceleration. Key features include factory-trimmed zero-g offset and full-scale span (no external calibration required), integrated 1-pole low-pass filtering for noise bandwidth control, on-board temperature compensation for stable output across -20C to +85C, and g-select input pins that allow the user to switch between ±10g and ±6g full-scale range dynamically. The device operates from a single 3.0V to 5.25V supply, drawing a low 2.5 mA typical supply current. The integrated g-select logic and self-test capability reduce external component count and simplify firmware calibration routines. Architecturally, the MMA6233QR2 uses a polysilicon capacitive sense element suspended over a silicon substrate; deflection of the proof mass modulates two nominally equal capacitors, and an on-chip ASIC performs charge integration, gain, and filtering. The analog output stage provides a ratiometric output centered at VDD/2 with sensitivity scaled to the supply voltage, simplifying ADC interface design. This architecture yields a robust sensor suitable for cost-sensitive consumer and industrial applications where digital interfaces are not required. Typical applications include tilt and inclination sensing, free-fall detection in hard-disk drives, vibration monitoring in industrial equipment, motion-activated user interfaces, and anti-theft alarm systems. The wide ±10g range and small 6x6 mm QFN-EP footprint make it a flexible choice for portable battery-powered designs. Compared to digital-output MEMS accelerometers (SPI/I2C), the analog ratiometric output of the MMA6233QR2 enables direct connection to an MCU ADC, minimizing firmware overhead. When designing with the MMA6233QR2, place 100 nF decoupling capacitors close to VDD and place a low-ESR bulk capacitor on the supply rail to reduce noise on the analog output. Use an op-amp buffer if the ADC input impedance is below 100 kohm to prevent measurement gain error. The exposed pad must be soldered to the PCB ground plane for thermal dissipation and electrical reference integrity.
MMA6260QR2 - ±1.5g Dual-Axis Accelerometer | NXP | 16-QFN-EP
The NXP MMA6260QR2 is a ±1.5g dual-axis micromachined capacitive accelerometer that integrates signal conditioning, a 1-pole low-pass filter, and temperature compensation on a single silicon die, housed in a 16-lead QFN-EP (6x6 mm) package with an exposed thermal pad. It reports acceleration along the X and Y axes through two analog outputs, with a factory-set 50 Hz bandwidth, a self-test pin, and g-select inputs for switching between full-scale ranges. What is an accelerometer? An accelerometer is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes and converts that physical displacement into an analog voltage or digital signal. In the broader sensor taxonomy, the MMA6260QR2 sits at: MEMS accelerometer → inertial sensor → motion sensor → semiconductor IC. It is used wherever a system needs to detect tilt, vibration, shock, or orientation in a compact, low-power surface-mount form factor. Key features include ±1.5g full-scale range on both axes, fully conditioned analog outputs, integrated temperature compensation, factory-trimmed zero-g offset and sensitivity, self-test capability, and a 1-pole low-pass analog filter with the cutoff factory-set to eliminate external RC components. The 16-QFN-EP package provides a thermal pad for stable operation across the -40 °C to +85 °C industrial range. Technically, the device uses a capacitive MEMS proof-mass structure whose differential capacitance changes with acceleration; on-chip CMOS ASIC converts this to a ratiometric analog voltage. Two g-select pins allow the user to command four sensitivity options (±1.5g / ±2g / ±4g / ±6g) by setting logic levels, and a logic-high on the self-test pin applies an electrostatic force to the proof mass for end-of-line verification. Typical applications include automotive airbag deployment detection, tilt and orientation sensing in consumer electronics, industrial vibration monitoring, gaming controllers, and HDD free-fall detection. The small 6x6 mm QFN package suits space-constrained PCB layouts. When designing with this part, place the device near the edge of the PCB where the mechanical stress is low, follow NXP's recommended footprint exactly, and tie unused outputs to ground through a high-impedance buffer to prevent crosstalk. This page consolidates distributor pricing, parameter cross-reference data, and practical layout notes that complement NXP's MMA6260Q datasheet.
MMA6261QR2 - ±1.5g Dual-Axis Analog Accelerometer | NXP
The NXP (formerly Freescale / Motorola) MMA6261QR2 is a dual-axis ±1.5g capacitive micromachined accelerometer in a 16-pin QFN-EP (6x6 mm) package. It integrates on-chip signal conditioning, a 1-pole low-pass filter, and temperature compensation, producing a calibrated analog output proportional to acceleration on both X and Y axes. Zero-g offset, full-scale span, and filter cut-off are factory-set so that no external trimming components are required in production. According to the NXP MMA6261 family datasheet, the device operates from a 2.7V to 3.6V single supply, typically draws 1.5 mA, and provides a 300 Hz analog bandwidth per axis with ratiometric analog outputs. An accelerometer is a micro-electromechanical systems (MEMS) sensor that measures proper acceleration, the rate of change of velocity relative to a free-fall reference frame. Within the broader sensor hierarchy, accelerometers belong to inertial measurement units (IMUs), sit alongside gyroscopes and magnetometers in 6-axis and 9-axis motion-tracking assemblies, and ultimately form part of motion-sensing subsystems in modern electronics. Dual-axis devices like the MMA6261QR2 simplify tilt, vibration, and shock measurement by integrating two orthogonal sensing axes on a single die. Key features include ±1.5g full-scale range, integrated signal conditioning with a 1-pole low-pass filter, factory-set zero-g offset and sensitivity, temperature compensation across -20C to +85C, and a self-test capability on both axes via dedicated logic pins. The analog output is ratiometric to the supply voltage, simplifying ADC interfacing without precision voltage references. The device uses a capacitive-sensing MEMS proof mass whose deflection modulates a differential capacitor bridge. A switched-capacitor front-end converts this capacitance change to a voltage, which is then filtered and amplified to produce the analog output. The integrated architecture eliminates the discrete op-amp and charge-pump stages required by older air-gap accelerometers. Typical applications include hard-disk drive free-fall protection, tilt and orientation sensing in consumer electronics, vibration monitoring in industrial equipment, gaming controllers, and portable medical devices. Designers value its small footprint, low power consumption, and the absence of external trimming components. When designing with the MMA6261QR2, place the recommended bypass capacitor within 5 mm of VDD and route the analog output traces away from switching regulators or digital clock lines to preserve the 300 Hz signal integrity. Self-test should be exercised at power-up or periodically for safety-critical applications such as HDD free-fall detection. This page synthesizes distributor pricing, parametric comparison with same-package cross-brand parts, and practical PCB-layout design notes that go beyond the manufacturer datasheet to accelerate your hardware bring-up.
MMA6262QR2 - ±1.5g X/Y Dual-Axis Accelerometer | NXP
The NXP MMA6262QR2 is a ±1.5g dual-axis (X, Y) capacitive micromachined accelerometer supplied in a 16-pin QFN-EP (6x6 mm) package with exposed thermal pad. It provides factory-calibrated sensitivity between 740 mV/g and 860 mV/g at a 3.3 V supply, includes a 1-pole low-pass filter with a 150 Hz cutoff, and integrated temperature compensation, eliminating the need for external trimming networks. An accelerometer is a micro-electromechanical sensor (MEMS) that measures the proper acceleration acting on a mass and converts that mechanical deflection into an electrical signal proportional to g-force. In the broader sensor taxonomy the MMA6262QR2 belongs to motion sensors, then accelerometers, then linear (non-tilt-switched) accelerometers, then single-/dual-axis MEMS devices. These parts sit above simple inclinometers and below full 6-axis inertial measurement units (IMUs) that combine a 3-axis accelerometer with a 3-axis gyroscope. Key features include signal conditioning on-chip, a g-select range fixed at ±1.5g, factory-set zero-g offset and full-scale span, low power consumption suitable for handheld and battery-powered equipment, and a -40 °C to +105 °C operating range that covers consumer and industrial environments. The integrated 150 Hz low-pass filter rejects high-frequency vibration and electrical noise without requiring external RC components. The device uses a surface-micromachined capacitive sense element with a sigma-delta modulator and dedicated ASIC for ratiometric analog output. Because the sensitivity is ratiometric to VDD, the same part can be used at 3.0 V or 5.0 V supplies with the appropriate output scaling, simplifying multi-rail designs. The exposed pad (EP) on the QFN package provides a low-impedance thermal and electrical ground path that must be soldered for specified performance. Typical applications include tilt and orientation sensing in handheld terminals, free-fall detection in hard-disk drives, motion-activated user interfaces, anti-theft / movement alarms, and vibration monitoring in industrial equipment. Its low current draw and small footprint also make it attractive for portable medical and fitness devices. When designing with this part, solder the exposed pad to a continuous ground pour to achieve mechanical stability and the rated sensitivity. Avoid placing switching regulators or high-current traces near the sense element to prevent conducted EMI from corrupting the analog output. Decouple VDD with a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin. This page consolidates verified distributor pricing, pin-compatible NXP-family alternatives, and practical layout notes - synthesis beyond the standalone manufacturer datasheet. The MMA6262QR2 is now sourced primarily through authorized-distributor excess and Rochester Electronics as the original NXP line enters long-term support.
MMA6262QR2-FR - ±1.5g Dual-Axis Micromachined Accelerometer | NXP
The NXP (formerly Freescale / Motorola) MMA6262QR2-FR is a low-cost, dual-axis, capacitive micromachined accelerometerometer offering a ±1.5 g full-scale range on the X and Y axes with an analog ratiometric output. Housed in a 16-pin QFN-EP (6x6 mm) package with an exposed thermal pad, the device integrates signal conditioning, a 1-pole low-pass filter, and factory-trimmed zero-g offset, full-scale span, and filter cut-off, so no external trim components are required. A micromachined accelerometer is a MEMS (Micro-Electro-Mechanical Systems) sensor in which a proof mass suspended by compliant springs moves under acceleration, changing the capacitance between interdigitated comb fingers; that capacitance change is converted to an analog voltage by an on-chip ASIC. In the system hierarchy this device sits at: accelerometer -> motion sensor -> inertial measurement unit (IMU) building block -> MEMS sensor -> semiconductor. The same family of Freescale/NXP parts (MMA62xx) is widely used as a low-cost tilt, vibration, and motion-detection front-end. Key specifications for the MMA6262QR2-FR include a sensitivity of 800 mV/g (typical), 0 g offset trimmed at the factory, a -3 dB bandwidth of 150 Hz set by the internal 1-pole RC filter, and a low 2 mA typical supply current from a single 2.2 V to 3.6 V rail. The ratiometric analog output scales with VDD, allowing direct ADC interfacing without a precision reference. Robustness features include shock survival up to 2000 g, ESD protection on all pins, and self-test capability via an external logic input that deflects the proof mass for in-system verification. The exposed thermal pad on the QFN-16 package provides both a low-impedance ground return and a thermal path that improves long-term zero-g bias stability. The package is Pb-free and RoHS compliant, and the part is qualified over the -40 °C to +105 °C extended industrial range, making it suitable for harsh-environment designs. Typical output noise density is on the order of 350 µg/√Hz, sufficient for tilt, vibration, and free-fall detection but not for high-precision inertial navigation. Common applications include HDD free-fall detection, tilt and orientation sensing in consumer electronics, vibration monitoring in industrial equipment, gaming controllers and pointing devices, and appliance anti-vibration control. The MMA6262QR2-FR is well suited where low cost, small footprint, and dual-axis analog output outweigh the need for higher bandwidth or digital I²C/SPI interfaces. A key design consideration is the analog output architecture: because the output is ratiometric to VDD, the host ADC must use the same VDD as its reference, or the absolute acceleration reading will not be accurate. Place a 0.1 µF decoupling capacitor within 5 mm of the VDD pin and connect the exposed pad to a clean ground plane to minimize supply-referred noise and bias drift.
MMA6263Q - ±1.5g Dual-Axis Accelerometer | NXP | 16-QFN
The NXP MMA6263Q is a ±1.5g dual-axis micromachined accelerometer integrating signal conditioning, a 1-pole low-pass filter, and temperature compensation in a 16-pin QFN-EP (6x6 mm) surface-mount package. It produces two analog outputs proportional to X and Y acceleration, and is factory-trimmed so that zero-g offset, full-scale span, and filter cut-off require no external passive components. The MMA6263Q operates from a single 3.3 V supply and is offered in lead-free (Q-suffix) and lead-bearing (Q-format) variants. An accelerometer is a MEMS (micro-electromechanical systems) sensor that measures proper acceleration - the rate of change of velocity relative to free-fall. The MMA6200 family uses a capacitive sensing cell in which a proof mass moves between interdigitated capacitors; differential capacitance change is converted to a ratiometric analog voltage by on-chip CMOS signal conditioning. Accelerometers of this type sit within the broader category of inertial sensors, alongside gyroscopes and magnetometers, and are typically used as primary or secondary transducers in motion-sensing systems. Key differentiating features include ±1.5g full-scale range (lower than the ±2g/±5g/±10g siblings in the family), 740 to 860 mV/g sensitivity, 900 Hz bandwidth, self-test capability on both axes, and a 1-pole low-pass filter with factory-set cut-off. The integrated temperature-compensation scheme calibrates both offset and sensitivity over the operating range, simplifying host firmware. Architecturally the MMA6263Q combines a surface-micromachined polysilicon sense element with a BiCMOS signal-chain ASIC. Sense-element capacitance is read out through a charge-balancing front end and a chopper-stabilized amplifier; the chopper architecture minimizes 1/f noise drift, which would otherwise degrade low-g resolution over temperature. The 1-pole filter follows the gain block to limit aliasing into downstream ADCs. Typical applications include tilt sensing in consumer electronics, freefall detection in portable storage, motion-activated user interfaces, vibration monitoring in industrial equipment, and inclination measurement in automotive dead-reckoning units. Its analog output makes it a good fit for any MCU with an integrated ADC. When designing with the MMA6263Q, observe the supply decoupling guidance in the manufacturer datasheet (typically 0.1 µF + 1 µF ceramic) and confirm the analog outputs feed an ADC reference or are scaled within the MCU's input range. The Q-suffix variant is lead-free and RoHS-compliant; the original Q-format variant is not RoHS-compliant and is now largely obsolete.
MMA6263QR2 - ±1.5g Dual-Axis Analog Accelerometer | NXP / Freescale
The NXP (formerly Freescale, originally Motorola) MMA6263QR2 is a ±1.5 g dual-axis micromachined capacitive accelerometer with analog voltage output, housed in a 16-pin QFN-EP (6x6 mm) surface-mount package. It operates from a single 3.3 V supply and produces a sensitivity of approximately 800 mV/g (range 740-860 mV/g) per axis, with X and Y axes measured simultaneously. The device delivers a 900 Hz sensor bandwidth and supports 400 Hz analog 1-pole low-pass filtering on-chip. A dual-axis analog accelerometer is a MEMS (micro-electro-mechanical systems) sensor that converts gravitational or inertial acceleration along two orthogonal axes into proportional analog signals. In the broader taxonomy it sits as: MEMS accelerometer -> accelerometer -> motion sensor -> inertial measurement unit (IMU) subsystem -> sensor IC -> semiconductor. Analog-output parts like the MMA6263QR2 feed directly into an ADC or op-amp stage, while digital-output counterparts integrate an ADC and expose I²C/SPI. The MMA6200 series, including the MMA6263QR2, is one of the earliest low-cost surface-mount dual-axis accelerometers and is widely found in legacy designs. Key features include factory-trimmed zero-g offset and full-scale span, eliminating user calibration, an internal 1-pole low-pass filter for noise bandwidth control, on-chip temperature compensation, and self-test capability. The MMA6263QR2 also provides a g-select input allowing switching between ±1.5 g and ±6 g ranges via logic level pins. The sensor's monolithic silicon structure uses differential capacitance sensing, which inherently rejects temperature drift and common-mode supply noise. Typical applications include tilt and orientation sensing in consumer products, free-fall detection in laptop hard drives, motion-activated user interfaces, vibration monitoring in industrial equipment, and appliance control. Its ±1.5 g range makes it particularly suited to gravity-referenced tilt measurement rather than high-shock event detection. When designing with this part, note that the analog output is ratiometric to the supply voltage; using a precise 3.3 V LDO such as the LP2980 improves measurement repeatability. The exposed pad must be soldered to the board ground plane for thermal dissipation and mechanical stability, and the device is now considered legacy - sourcing new inventory requires attention to authorized distributor stock.
MMA6270Q - ±1.5g/2g/4g/6g Dual-Axis MEMS Accelerometer | NXP
The NXP (formerly Freescale) MMA6270Q is a dual-axis low-g micromachined (MEMS) capacitive accelerometer with user-selectable sensitivities of ±1.5g, ±2g, ±4g, and ±6g, housed in a 16-pin QFN (6 mm × 6 mm) package. It operates from a single 2.2 V to 3.6 V supply, draws approximately 500 µA of typical current, and outputs analog voltages through X and Y signal pins with a 350 Hz bandwidth. An accelerometer is a MEMS sensor that converts mechanical acceleration into an analog voltage proportional to the applied inertial force, enabling motion, tilt, and vibration detection in electronic systems. As a low-g dual-axis part, the MMA6270Q sits in a hierarchy of MEMS sensors: accelerometer -> motion sensor -> inertial measurement unit (IMU) building block -> semiconductor sensor IC. The MMA6270Q integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, and g-Select (logic-level sensitivity switching), which together replace the discrete op-amp chain that older discrete accelerometer circuits required. Key features include four user-selectable sensitivity ranges (with sensitivity values of 740-860 mV/g at ±2g nominal, 555-645 mV/g at ±4g, 277.5-322.5 mV/g at ±1.5g, and 185-215 mV/g at ±6g), a low 1.5 mA maximum supply current, self-test capability, and a low-profile 16-pin QFN package that simplifies PCB layout. The g-Select pins (g-SEL1, g-SEL2) allow dynamic range selection at runtime, useful for applications that transition between high-motion and low-motion states. Architecturally, the MMA6270Q uses a capacitive MEMS proof-mass with on-chip CMOS signal conditioning. The sensor's surface micromachined polysilicon structure forms differential capacitors that change capacitance proportionally to acceleration; these capacitances are read out through a charge-integrating front-end and converted to a ratiometric analog output centered at VDD/2 (approximately 1.65 V at 3.3 V supply). The ratiometric output scales automatically with supply voltage, simplifying ADC interface. Typical applications include tilt sensing in consumer electronics, automotive body control modules, hard-disk drive freefall detection, vibration monitoring in appliances, and motion-activated user interfaces. The dual-axis X-Y configuration is well suited for 2-D tilt and gesture applications but not full 3-D inertial measurement, where a 3-axis part such as the MMA7261Q would be required instead. When designing with the MMA6270Q, treat the analog outputs as low-impedance buffered rails rather than high-impedance nodes, and place the 0.1 µF bypass capacitor as close as possible to the VDD pin. Use g-Select pins either tied to logic levels through 100 kΩ resistors or driven by GPIO to avoid glitches during range transitions. This page synthesizes DigiKey and Mouser pricing, NXP/Freescale datasheet specifications, and drop-in alternative analysis not found on any single distributor listing, including side-by-side parametric comparisons against the MMA6261Q, MMA6280Q, and MMA7261Q family members and pin-compatible ST/Analog Devices equivalents.
MMA6270QT - ±1.5g-6g Dual-Axis Accelerometer | NXP | 16-QFN
The NXP Semiconductors MMA6270QT is a low-g, dual-axis (X, Y) capacitive micromachined accelerometer with g-Select selectable full-scale ranges of ±1.5g, ±2g, ±4g, and ±6g, housed in a 16-pin QFN (6x6 mm) surface-mount package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, and a g-Select logic input, and provides a 350 Hz analog bandwidth. The device operates from a single 2.2 V to 3.6 V supply and delivers a ratiometric voltage output proportional to acceleration, simplifying ADC interfacing. An accelerometer is a micro-electromechanical systems (MEMS) sensor that measures linear acceleration along one or more axes by detecting the displacement of a proof mass suspended by compliant springs. The MMA6270QT belongs to the capacitive-sensing accelerometer family, where displacement changes the gap of a differential capacitor and is read out as an analog signal. Within the broader sensor hierarchy, it sits under inertial sensors -> motion sensors -> MEMS sensors. Capacitive MEMS accelerometers offer lower power consumption than piezoresistive types and are widely used in battery-powered motion-enabled products. Key features include four user-selectable sensitivities via the g-Select pin (1.5g/2g/4g/6g), integrated temperature compensation across -40°C to +105°C, low current consumption (typically under 1 mA), and self-test functionality that verifies mechanical and electrical integrity at power-up. The MMA6270QT also provides a ratiometric analog output that scales with the supply voltage, which allows direct ADC interfacing without precision voltage references. The 16-QFN (6x6) package exposes a thermal pad for improved PCB thermal performance and mechanical stability. Typical applications include tilt sensing in appliances and gaming, freefall detection for hard-disk drive protection, motion-activated user interfaces, vibration monitoring in industrial equipment, and orientation detection in portable electronics. Designers value the g-Select feature because it lets a single part serve multiple sensitivity requirements across product variants, reducing BOM complexity. Compared with discrete accelerometer designs that require external op-amps and filters, the MMA6270QT integrates the entire analog signal chain on a single die. When designing with this device, place 0.1 µF decoupling capacitors close to VDD and add a 10 µF bulk capacitor for supply stability. The g-Select pin should be tied high or low through a 100 kΩ resistor - do not leave it floating. For accurate measurements, keep the PCB layout symmetrical around the sensor axes and avoid placing heat-generating components directly above the package. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MMA6271QR2 - ±2.5/3.3/6.7/10g 2-Axis Accelerometer QFN-16 | NXP
The NXP MMA6271QR2 is a two-axis low-g micromachined accelerometer with selectable ranges of ±2.5g, 3.3g, 6.7g, and 10g, factory-calibrated and housed in a 16-pin QFN (LDS) 6x6 mm package. Per the verified distributor description, it is a capacitive MEMS sensor with integrated signal conditioning, a 1-pole low-pass filter, temperature compensation, and a g-Select pin that lets the host dynamically choose between four full-scale sensitivities without re-calibration. The -QR2 suffix indicates a 1000-piece tape-and-reel shipping format. An accelerometer is a micro-electromechanical sensor (MEMS) that transduces gravitational or inertial acceleration along one or more axes into a measurable electrical signal. In the broader taxonomy, this part sits under sensor -> motion sensor -> inertial sensor -> MEMS accelerometer. The MMA6271QR2's dual-axis (X, Y) sensing, combined with selectable full-scale range via the g-Select logic input, makes it suitable for tilt, vibration, and shock detection applications where orientation and motion context must be derived from gravity. Key differentiating specifications include four user-selectable acceleration ranges (±2.5g / 3.3g / 6.7g / 10g), a 16-QFN-6x6 leadless package that saves board area vs older 16-LGA or 16-QFN competing parts, integrated temperature compensation, and a built-in 1-pole low-pass filter for bandwidth limiting without external RC stages. The device operates from a single low-voltage supply and produces ratiometric analog outputs proportional to applied acceleration. The MMA6271QR2 uses a capacitive sensing cell whose differential capacitance changes with proof-mass deflection; on-chip CMOS ASIC performs charge integration, gain, offset trim, and temperature compensation. The ratiometric analog interface (VOUT proportional to VDD) simplifies connection to common ADCs and microcontrollers without level shifting. The selectable full-scale range, gated by the g-Select pin, preserves dynamic range when high-g events occur. Typical applications include appliance tilt sensing, portable device screen rotation, gaming controllers, vibration analysis in HVAC and rotating equipment, free-fall detection in hard-drive protection, and industrial tilt/inclination monitoring. The 350 Hz bandwidth (per DigiKey listing) supports tilt sensing as well as low-frequency vibration analysis. Designers should select the appropriate g-range for their expected peak events and route the analog outputs to an ADC with adequate sample rate.