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MMA6271QT - ±2.5g/10g 2-Axis Micromachined Accelerometer | NXP
The NXP Semiconductors MMA6271QT is a low-cost, capacitive micromachined two-axis (X, Y) accelerometer with four user-selectable sensitivity ranges of ±2.5g, ±3.3g, ±6.7g and ±10g, supplied in a 16-pin QFN (6x6 mm) surface-mount package. The device features signal conditioning, a 1-pole low-pass filter, temperature compensation, and g-Select logic inputs that allow dynamic switching between the four sensitivity modes without external component changes. With a 350 Hz sensor bandwidth and a 3.3 V supply, the part targets motion, tilt, vibration, and orientation sensing in cost-sensitive embedded designs. A micromachined accelerometer is a MEMS (micro-electromechanical systems) sensor that converts gravitational or inertial acceleration into an analog voltage via the deflection of a proof mass between capacitive plates. In the system hierarchy, the MMA6271QT sits at the sensor/transducer tier, above raw signal output and below the host microcontroller that digitises and interprets the data. Two-axis accelerometers measure inclination and motion in a plane - typically used for tilt sensing, gaming input, hard-disk protection and basic motion detection - and are differentiated from three-axis IMUs (inertial measurement units) by their lack of a Z-axis and (in this case) any digital interface. Key features include zero-g offset full-scale span calibration, integrated temperature compensation, g-Select sensitivity switching, a 1-pole analogue low-pass filter with user-set bandwidth, and a self-test pin for end-of-line verification. The device operates from a single 3.3 V supply (2.2 V to 3.6 V) and draws approximately 1.0 mA quiescent current, making it suitable for portable battery-powered systems. The MMA6271QT uses NXP's surface-micromachined polysilicon sense element with differential capacitive readout, which provides high sensitivity per g and excellent offset stability over the -40 °C to +105 °C industrial operating range. The integrated signal chain - sensor + op-amp + filter + output buffer - eliminates the need for external signal conditioning components. Typical applications include HDD free-fall detection, tilt and orientation sensing in consumer electronics, motion-activated user interfaces, vibration monitoring in industrial equipment, and gaming controllers. The four g-Select ranges cover most low-g motion-sensing scenarios with one device. Design tip: place 0.1 µF decoupling capacitors close to the VDD and GND pins, and route the analogue outputs away from switching converters to preserve signal integrity. For accurate tilt measurement, calibrate zero-g offset at room temperature after reflow. This page synthesises distributor availability, drop-in alternative listings and practical MEMS design notes that are not found in the manufacturer datasheet alone, providing a one-stop reference for component selection.
MMA6280Q - ±1.5/2/4/6g Dual-Axis Accelerometer, 16-QFN | NXP
The NXP Semiconductors MMA6280Q is a low-cost, dual-axis (X, Z) capacitive micromachined accelerometer with selectable full-scale ranges of ±1.5 g, ±2 g, ±4 g, and ±6 g, housed in a 16-pin QFN (HQCCN) 6x6 mm surface-mount package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, and g-Select sensitivity switching, and operates from a single 2.2 V to 3.6 V supply. The X-axis bandwidth is 350 Hz while the Z-axis bandwidth is 150 Hz, giving designers flexibility to trade resolution versus response time. An accelerometer is a MEMS (micro-electromechanical systems) sensor that measures linear acceleration along one or more axes, converting mechanical motion into an electrical signal via a proof-mass whose displacement is detected capacitively. Within the sensor taxonomy, the MMA6280Q sits in the low-g motion-sensor category, between high-g impact sensors (used for crash detection) and ultra-low-noise inclinometers (used for tilt sensing). It is typically paired with a microcontroller that interprets the analog ratiometric output or, in newer variants, a digital I2C/SPI interface. Key features include 4 user-selectable sensitivities via the g-Select logic pins, ratiometric analog output centered on VDD/2, low 1.5 mA typical supply current, and robust 5000 g mechanical shock survivability. The integrated temperature compensation holds zero-g offset and sensitivity across -20 °C to +85 °C, eliminating external calibration in most consumer and industrial designs. The 1-pole low-pass filter reduces high-frequency noise before the output buffer. The MMA6280Q uses NXP's surface-micromachined polysilicon sense element suspended over fixed silicon fingers; differential capacitance changes are demodulated by a chopper-stabilized ASIC, producing an output that is ratiometric to the supply. The X and Z sense elements are oriented orthogonally so a single package measures two independent axes, simplifying PCB layout versus two single-axis parts. Typical applications include tilt sensing in handheld electronics, free-fall detection in data-protection systems, motion-activated user interfaces, anti-theft/anti-tamper alarms, and activity monitoring in portable equipment. Designers choose the g-Select range that matches peak expected acceleration to maximize ADC resolution. When designing with this part, place a 0.1 µF decoupling capacitor within 5 mm of the VDD pin and keep the analog output trace short and guarded from switching nodes. The g-Select pins (g1, g2) are static logic inputs - either tied directly to VDD/GND or driven by a GPIO if range-switching is desired at runtime.
MMA6280QR2 - ±1.5g/2g/4g/6g Dual-Axis Accelerometer | NXP
The NXP MMA6280QR2 is a low-cost, dual-axis (X, Z) capacitive micromachined accelerometer with selectable full-scale ranges of ±1.5g, ±2g, ±4g, and ±6g, housed in a 16-pin QFN (HQCCN, 6x6 mm) surface-mount package. It integrates a MEMS sense element with on-chip signal conditioning, a 1-pole low-pass filter, temperature compensation, and g-Select logic for switching between the four sensitivity ranges at start-up. Per the NXP datasheet, it delivers analog ratiometric outputs with -350 Hz bandwidth on the X axis and -150 Hz on the Z axis. A MEMS accelerometer is a micro-electromechanical sensor that converts gravitational or inertial acceleration into a proportional analog voltage. The MMA6280QR2 belongs to the capacitive micromachined accelerometer family, which uses a suspended proof-mass whose deflection changes a set of sense-plate capacitances. This technology is the hypernym parent of automotive airbag sensors, tilt/inclination sensors, and motion-detection devices, occupying the broader hierarchy of motion sensor -> inertial sensor -> MEMS device -> semiconductor. The g-Select feature makes the device a 4-in-1 part, reducing BOM count for designs that span multiple acceleration ranges. Key features include ±1.5g/2g/4g/6g selectable ranges, 350 Hz (X) / 150 Hz (Z) bandwidth, ratiometric analog output, on-chip temperature compensation, and a low 1-pole LPF. The 16-QFN (6x6) HQCCN package provides a small footprint and a thermal pad for stable operation across the -20C to +85C industrial range. Typical sensitivities are 800 mV/g (1.5g), 600 mV/g (2g), 300 mV/g (4g), and 200 mV/g (6g), with zero-g output near Vdd/2. The architecture combines a MEMS proof-mass with a CMOS ASIC containing charge-pamp, demodulator, low-pass filter, and gain stages. The g-Select pins (g-SEL1, g-SEL2) are sampled at power-up, latching one of four pre-set gains into the analog chain. This eliminates external op-amps and simplifies the design for cost-sensitive, high-volume applications. Typical applications include tilt/orientation sensing, vibration monitoring, free-fall detection, HDD shock detection, and motion-enabled user interfaces in appliances, gaming peripherals, and consumer electronics. The dual X/Z axis orientation is particularly well suited to vertical-tilt applications such as washing-machine imbalance detection and electronic level tools. A key design consideration: because the g-Select inputs are latched at power-up only, designers needing to switch ranges dynamically must power-cycle the device or use a logic-level translator on the g-SEL pins and toggle Vdd. Decoupling capacitors (0.1 uF) must be placed within 5 mm of the supply pin. This page synthesizes distributor pricing, pin-compatible NXP alternatives, and practical design notes not consolidated in the manufacturer datasheet, providing engineers a single reference for selection, sourcing, and layout.
MMA6281QR2 - ±2.5/10g Two-Axis Low-g Accelerometer | 16-QFN
The NXP Semiconductors MMA6281QR2 is a low-g two-axis micromachined accelerometer offering four user-selectable full-scale ranges (±2.5 g, ±3.3 g, ±6.7 g, ±10 g) via the g-Select logic input, housed in a 16-pin QFN (6 x 6 mm) package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, and g-Select sensitivity switching. According to the manufacturer datasheet, the device provides an analog voltage output per axis (X and Z) with sensitivities from 480 mV/g at ±2.5 g down to 120 mV/g at ±10 g, on a 2.2 V to 3.6 V supply. Per the datasheet, X-axis bandwidth is 350 Hz and Z-axis bandwidth is 150 Hz. An accelerometer (also called a g-sensor) is a micro-electromechanical (MEMS) sensor that measures proper acceleration along one or more axes. It belongs to the motion sensor family within the broader sensor hierarchy: accelerometer -> motion sensor -> MEMS -> semiconductor IC. Because MMA6281Q is a low-g part it is used to sense tilt, vibration and shock events, not high-shock impacts. Two-axis X+Z variants such as this part suit horizontal board-mount or front-panel mounts where pitch plus yaw must be measured simultaneously. Key features of the MMA6281QR2 include four selectable sensitivity ranges, integrated temperature compensation, monolithic signal conditioning, and a 1-pole low-pass filter for bandwidth limiting. The 16-QFN QFN package is reflow-compatible and supports standard surface-mount assembly, and the exposed pad aids thermal dissipation and mechanical stability of the die. The analog ratiometric output drives an external ADC directly, simplifying MCU integration. The g-Select pin allows software or hardware reconfiguration of full-scale range without changing the hardware. MMA6281QR2 architecture is a surface-micromachined capacitive sensing element combined with a CMOS signal-chain ASIC; motion-induced differential capacitance change is unconverted to a voltage proportional to acceleration. The ratiometric analog output simplifies ADC calibration because the zero-g offset and sensitivity scale with the supply voltage. g-Select allows two sensitivity pairs (2.5/3.3 g and 6.7/10 g) selectable per axis, trading dynamic range against resolution at runtime. Typical applications of MMA6281QR2 include HDD free-fall detection (laptop drop protection), portable consumer tilt and orientation sensing, anti-theft / motion alarm units, vibration monitoring in industrial appliances, and human-machine interface pointing devices. Designers select this part for cost-sensitive multi-axis motion detection where digital output is not required and an external MCU with ADC is present. When designing with this device, place 0.1 microF decoupling on VDD close to the pin and follow the land-pattern recommendations in the QFN package drawing. The exposed pad must be soldered to the board ground pour for thermal and mechanical integrity. Confirm that the selected g-range covers the application's worst-case acceleration including margin. This page synthesizes distributor availability, drop-in package alternatives in the same 16-QFN QFN family, and design guidance drawn from the Freescale/NXP datasheet and application notes - information not aggregated on a single distributor page.
MMA6281QT - ±2.5g-10g Two-Axis Low-g MEMS Accelerometer | NXP
The NXP MMA6281QT is a low-cost, two-axis low-g capacitive micromachined (MEMS) accelerometer with selectable sensitivity ranges of ±2.5g, ±3.3g, ±6.7g, and ±10g, housed in a 16-pin QFN (HQCCN) package. The device integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, and g-Select logic for hardware-configurable full-scale range, and is qualified to industrial temperature grade. A two-axis MEMS accelerometer is a sensor that measures static (gravity) and dynamic acceleration along two orthogonal axes using a suspended proof-mass structure whose capacitance changes with deflection. The MMA6281QT belongs to the accelerometer -> MEMS sensor -> inertial sensor -> sensor hierarchy, and serves as the lowest-level transducer that converts mechanical motion into an analog voltage proportional to acceleration. g-Select inputs allow a host microcontroller to dynamically trade sensitivity against measurement range without re-calibrating the analog front-end. Key features include g-Select for four switchable sensitivities (±2.5g / ±3.3g / ±6.7g / ±10g), an integrated 1-pole low-pass filter for bandwidth limiting, on-chip temperature compensation, and a self-test pin for end-of-line verification. The device operates from a 2.2V to 3.6V analog supply, draws approximately 1.5 mA active current, and presents an analog ratiometric output centered at Vdd/2. Sleep mode reduces consumption to single-digit. The MMA6281QT uses NXP's micromachined polysilicon surface-micromachined proof mass with capacitive sense elements and a switched-capacitor interface. This architecture yields excellent offset stability over temperature and predictable sensitivity scaling across the four selectable g-ranges, while keeping the BOM cost low for high-volume consumer and industrial products. Typical applications include tilt and orientation detection in household white goods, free-fall detection in hard-disk drives and portable electronics, motion-activated user interfaces, vibration monitoring in industrial equipment, and inclination sensing in e-compass tilt compensation. The dual-axis X-Z measurement geometry is particularly useful for tilt/inclination measurement against gravity where one axis carries the primary tilt component and the other serves as a cross-check. When designing with this part, place 0.1uF bypass capacitors adjacent to VDD and verify the g-Select logic levels against the host controller's output spec. For tilt applications, the analog output is ratiometric to VDD, so a stable analog supply (or ADC reference tied to VDD) is required for absolute accuracy. The internal 1-pole filter sets the bandwidth - add external filtering if the application demands tighter noise shaping. This page synthesizes distributor pricing, drop-in alternatives, application guidance and design notes not found in the standalone manufacturer datasheet, providing an information-gain view of the MMA6281QT for engineers sourcing, evaluating and designing with this two-axis low-g accelerometer.
MMA6341LT - ±3g/±9g 2-Axis Low-g Accelerometer | NXP
The NXP MMA6341LT is a low-power, low-profile capacitive micromachined two-axis (±X, ±Y) low-g accelerometerter with selectable ±3 g or ±9 g full-scale range, housed in a 14-pin LGA (3x5 mm) package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation and g-Select (logic-level pin that switches sensitivity between 1.5 g and 6 g nominal at 3 V), producing an analog ratiometric output centered at VDD/2 with factory-trimmed zero-g offset and sensitivity. The part operates from a 2.2 V to 3.6 V supply, draws 500 µA in normal mode and falls below 3 µA in Sleep Mode, and ships as RoHS-compliant lead-free LGA. An accelerometerometer is a micro-electromechanical sensor (MEMS) that transduces gravitational or inertial acceleration into a proportional electrical signal. The MMA6341LT belongs to the capacitive-sensing MEMS family, in which a proof mass moves between fixed interdigitated electrodes and the change in capacitance is read out by an on-chip ASIC. In the broader hierarchy it sits under: accelerometerter -> inertial sensor -> MEMS device -> semiconductor sensor, and it is typically used as a tilt/inclination or motion-front-end in a power-management or user-interface subsystem. Key features include selectable ±3 g / ±9 g full-scale range via the g-Select pin, ±5 % sensitivity trim accuracy over temperature, 1-pole low-pass filter with 400 Hz bandwidth, ratiometric analog output, and an ultra-low 3 µA Sleep Mode current. The 14-pin LGA (3x5) package measures only 3 mm × 5 mm × 1 mm and provides a robust industrial temperature range of -40 °C to +85 °C. The MMA6341LT uses Freescale/NXP's high-aspect-ratio micromachined sense element with a BiCMOS signal-chain ASIC, which yields better than 5 % sensitivity accuracy, factory-set zero-g offset (no external trim components required), and a low ratiometric output noise density suitable for tilt and motion-detection bandwidths. Typical applications include portable consumer-electronics tilt and orientation (eBook readers, remote controls, gaming controllers), hard-disk drive free-fall detection, motion-activated user interfaces, vibration monitoring in industrial equipment, and anti-tamper / inclinometer modules. Because the output is ratiometric to VDD, designers can read it directly with an MCU ADC without an external precision reference. When designing with this device, place 0.1 µF decoupling capacitors as close as possible to the VDD pin and keep the g-Select pin tied either to GND or VDD with a defined logic level (never floating). The exposed pad on the LGA must be soldered to the PCB ground plane to provide mechanical stability and thermal dissipation. This page synthesizes distributor pricing, drop-in alternatives in the same 14-LGA footprint, and practical design notes not found in the manufacturer datasheet.
MMA6813BKCWR2 - Dual-Axis 50g SPI Accelerometer | NXP
The NXP MMA6813BKCWR2 is a dual-axis, medium-g, over-damped lateral accelerometer with a 10-bit SPI interface, packaged in a 16-pin QFN (6x6 mm) with an exposed thermal pad. Per the NXP MMA68xx datasheet, it is part of NXP's SafeAssure family and is specified for ±50g full-scale range on the X and Y axes, with on-chip 10-bit ADC and signal conditioning for airbag, electronic stability control, and vehicle dynamics applications. An accelerometer (also called a g-sensor or gravity sensor) is a micro-electromechanical (MEMS) device that converts mechanical acceleration into an analog or digital output. In the system taxonomy, an accelerometer belongs to motion sensors -> inertial sensors -> sensors. The MMA6813BKCWR2 falls under medium-g (>10g) lateral accelerometers, which are over-damped to suppress high-frequency vibration and provide clean signals during crash or chassis events. Key features include a 10-bit digital SPI output, self-test capability, low current consumption suitable for always-on automotive sensing, internal signal conditioning, and a SafeAssure safety designation. The QFN-16 6x6 mm package with an exposed pad provides a low thermal resistance path and a robust PCB land pattern suitable for automotive reflow profiles. The device uses a MEMS sensing element and a BiCMOS signal chain for ratiometric analog-to-digital conversion, with internal clock and self-diagnostics. The SPI interface supports standard mode 0 (CPOL=0, CPHA=0) and mode 3, and the integrated low-pass filter can be adjusted via external capacitor for bandwidth tuning per application requirements. Typical applications include automotive airbag systems, electronic stability control (ESC), vehicle dynamics control (VDC), rollover detection, and chassis attitude sensing. The medium-g over-damped response curve makes it particularly suitable for crash pulse measurement where clean low-frequency content is required. When designing with this device, place the exposed pad over a continuous ground pour to provide thermal and mechanical stability. Maintain SPI trace length matching within 10 mm to avoid setup/hold violations at the maximum clock rate. Decouple VDD with a 100 nF ceramic capacitor placed within 2 mm of the supply pin. This page synthesizes distributor pricing from DigiKey/LCSC/Heisener, drop-in alternatives from the MMA68xx family, automotive-grade substitution guidance, and PCB design notes not typically compiled in the NXP datasheet PDF.
MMA7260Q - ±1.5/2/4/6g 3-Axis Accelerometer 16-QFN | NXP
The NXP Semiconductors MMA7260Q (originally Motorola/Freescale) is a low-cost tri-axis capacitive micromachined accelerometer offering four user-selectable sensitivities of ±1.5g, ±2g, ±4g, and ±6g in a 16-pin QFN (6mm × 6mm) surface-mount package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, g-Select inputs, and a Sleep Mode for battery-powered handheld applications. An accelerometer is a MEMS (Micro-Electro-Mechanical Systems) sensor that measures proper acceleration along one or more axes, converting it into a proportional analog or digital output. The MMA7260Q belongs to the broader class of motion sensors and inertial measurement devices, sitting in the hierarchy: 3-axis accelerometer → MEMS accelerometer → motion sensor → inertial sensor. It is widely used wherever low-g tilt, vibration, shock, or motion detection must be sensed without the complexity of a full IMU. Key features include factory-calibrated zero-g offset and full-scale span requiring no external trim components, four selectable g-ranges via two logic inputs (g-Select1 and g-Select2), a low current consumption of approximately 500 µA in active mode and 3 µA in Sleep Mode, and a single-supply operation from 2.2 V to 3.6 V. The integrated 1-pole low-pass filter has a bandwidth of 350 Hz on the X and Y axes and 150 Hz on the Z axis. The 16-QFN package provides a small 6 mm × 6 mm footprint suitable for space-constrained PCB designs. Architecturally, the device uses a surface-micromachined capacitive sensing cell with a dedicated ASIC for amplification, demodulation, temperature compensation, and filtering. The capacitive sensing principle delivers good noise performance and stability across its full operating temperature range of -20 °C to +85 °C, while the g-Select multiplexing allows the same silicon to serve multiple application ranges without mechanical reconfiguration. Typical applications for the MMA7260Q include HDD free-fall detection, portable consumer electronics tilt sensing, motion-activated user interfaces, vibration monitoring in appliances, gaming controllers, and industrial equipment health monitoring. The selectable ranges make it well suited to both high-resolution tilt measurement (using the ±1.5g range) and shock or free-fall detection (using the ±6g range). When designing with this part, note that the device is specified for 2.2 V to 3.6 V single-supply operation only; for 5 V microcontroller systems an external LDO is required. Place the decoupling capacitor as close as possible to the supply pin, route the analog output traces away from switching nodes, and respect the g-Select logic timing during range switching to avoid transient invalid outputs. This page synthesizes distributor pricing, drop-in alternative options, and practical MEMS design notes not found in the manufacturer datasheet alone.
MMA7260QR2 - ±1.5g-6g 3-Axis MEMS Accelerometer, QFN-16 | NXP
The NXP MMA7260QR2 is a low-cost, capacitive micromachined three-axis low-g accelerometer with selectable ±1.5g / 2g / 4g / 6g full-scale ranges, housed in a 16-pin QFN (6 mm x 6 mm) surface-mount package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, and a g-Select digital sensitivity switch on a single silicon die, delivering conditioned analog X, Y, and Z outputs from a 2.2 V to 3.6 V supply. What is a MEMS accelerometer? A micro-electromechanical systems (MEMS) accelerometer is a sensor category that uses a suspended proof mass and capacitive sensing elements to convert mechanical acceleration into a measurable electrical signal; in the system hierarchy it sits between raw mechanical input and downstream signal-conditioning stages, feeding analog or digital outputs to microcontrollers, DSPs, or motion-processing ASICs. The MMA7260QR2 belongs to the low-g tilt / vibration / free-fall sensing tier, optimized for sub-±10g applications rather than high-shock or automotive airbag use cases. NXP inherited this part family from Freescale Semiconductor following the 2015 acquisition, which is why older datasheet revisions carry the Motorola / Freescale banner. Key features of the MMA7260QR2 include four user-selectable acceleration sensitivities (g-Select logic pins), an integrated 1-pole low-pass filter with 350 Hz X/Y and 150 Hz Z corner frequencies, on-chip temperature compensation for offset and sensitivity, low overall power consumption suitable for portable battery-powered designs, and a sleep mode for power-sensitive embedded systems. The g-Select pins accept logic-level inputs to switch full-scale range on the fly without register writes, which simplifies firmware for cost-sensitive designs. Technical depth comes from the capacitive micromachined sensing cell, in which a suspended proof mass moves against fixed finger electrodes and modulates a differential capacitance bridge; an on-board ASIC performs charge-to-voltage conversion, gain scaling, temperature correction, and low-pass filtering. The X and Y axes share 350 Hz bandwidth while the Z axis is intentionally limited to 150 Hz to suppress high-frequency mechanical noise on the typically noisier vertical sensing axis. The device operates from a single 2.2 V to 3.6 V supply and provides ratiometric analog outputs whose zero-g offset is trimmed at the factory. Typical applications include hard-disk drive free-fall protection, portable consumer tilt and orientation sensing, motion-activated user interfaces in mobile and wearable devices, industrial vibration monitoring, and tilt-mode gaming controllers. The wide g-Select range lets one BOM SKU cover multiple product variants, reducing qualification overhead in production. For design, place 0.1 µF decoupling capacitors within 5 mm of the VDD and g-Select pins, route the analog outputs away from digital switching traces to avoid coupling, and treat the exposed thermal pad as the primary thermal and mechanical ground anchor for solder-joint reliability. Confirm that host ADC sampling frequency is at least 2x the X/Y filter corner to satisfy the Nyquist sampling requirement. This page synthesizes distributor pricing, drop-in alternates from the same NXP family and competitor MEMS suppliers, and practical layout guidance that goes beyond the manufacturer datasheet to accelerate first-pass design success.
MMA7260QT - ±1.5/2/4/6g 3-Axis MEMS Accelerometer | NXP
The NXP MMA7260QT is a low-cost capacitive micromachined 3-axis accelerometer with four user-selectable full-scale ranges of ±1.5g, ±2g, ±4g, and ±6g, housed in a 16-pin QFN (HQCCN) package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, and g-Select logic that switches sensitivity through two digital input pins, enabling one PCB design to serve multiple motion-detection use cases. The MMA7260QT targets low-g tilt, motion, vibration, and free-fall sensing in consumer and industrial electronics. An accelerometer is a MEMS (micro-electromechanical systems) sensor that measures proper acceleration along one or more axes. Capacitive micromachined accelerometers use a suspended proof structure whose capacitance changes with deflection; on-board ASIC converts this change to an analog or digital output proportional to g-force. The MMA7260QT belongs to the broader category of inertial sensors (accelerometer -> MEMS motion sensor -> inertial measurement unit -> semiconductor sensor), and is one of the early sub-1g-noise floor/low-g consumer accelerometers that made tilt-based UI and HDD free-fall detection practical in volume products. Key features include four selectable sensitivities (800 mV/g at 1.5g, 600 mV/g at 2g, 300 mV/g at 4g, and 200 mV/g at 6g), an analog ratiometric output, 1-pole low-pass filter with selectable bandwidth, low 0.95 mA typical supply current, sleep mode under 3 µA, fast power-on response, and self-test capability. The g-Select inputs (g-SEL1, g-SEL2) allow dynamic switching between two preset ranges. The QFN-16 package is small (6 mm x 6 mm) and supports hand or reflow soldering. The MMA7260QT employs a surface-micromachined capacitor structure with an ASIC that includes a charge amplifier, temperature-compensation network, low-pass filter, and g-Select decoding. The 1.5 g internal sensor noise floor is approximately 350 µg/√Hz. Self-test verifies mechanical and electrical integrity via electrostatic deflection of the proof mass. The device operates from a 2.2 V to 3.6 V analog supply and supports 3.3V or 5V digital logic when paired with a level shifter. Typical applications include HDD free-fall protection, tilt and orientation sensing, motion-activated user interfaces, vibration analysis in industrial equipment, 3-axis gaming controllers, and robotics tilt feedback. Its selectable sensitivity makes it suitable both for high-resolution 1.5g tilt sensing and broader-range shock detection. When designing with this part, use low-ESR decoupling on VDD, place the device away from vibration sources (speakers, fans) and keep the g-Select lines tied to known logic levels to avoid transient range changes. Pololu and other module vendors pair this IC with an on-board 3.3V regulator to ease 5V host integration. The part is reported as obsolete/EOL by multiple distributors as of 2026-10-15; new designs should consider the recommended drop-in successors MMA7331L/MMA7361L/MMA7455L/MMA8451Q/MMA8452Q/MMA8453Q where pin-compatibility allows. This page synthesizes distributor stock and lifecycle data, parametric alternatives, and application context not aggregated in a single manufacturer document.
MMA7261Q - ±2.5/3.3/6.7/10g 3-Axis Accelerometer | NXP
The NXP (formerly Freescale) MMA7261Q is a three-axis low-g capacitive micromachined accelerometer with selectable full-scale ranges of ±2.5g, ±3.3g, ±6.7g, and ±10g, supplied in a 16-pin QFN (6 mm x 6 mm) package. The device operates from a 2.2 V to 3.6 V supply, draws approximately 500 µA of operating current, and provides analog X, Y, and Z outputs with bandwidths of 350 Hz on the X and Y axes and 150 Hz on the Z axis. A g-Select logic interface allows the host MCU to dynamically switch between four sensitivities without changing external components. An accelerometer is a MEMS (micro-electro-mechanical systems) sensor that measures proper acceleration along one or more axes and produces an electrical output proportional to the sensed force. The MMA7261Q belongs to the capacitive-sensing family of accelerometers (sibling to piezo-resistive types) in which a proof mass shifts relative to fixed capacitive plates under acceleration, converting deflection into a differential capacitance that the on-chip ASIC amplifies and outputs as an analog voltage. In the broader taxonomy it sits under motion sensors -> inertial sensors -> MEMS accelerometers -> semiconductor sensor ICs. Key features include a 1-pole low-pass filter on each axis, on-chip temperature compensation to stabilize zero-g offset over -20 °C to +85 °C, a low-current Sleep Mode that drops consumption below 3 µA, and lead-free RoHS-compliant construction. The internal signal-conditioning ASIC drives a ratiometric analog output that scales with VDD, simplifying ADC interfacing on 3.3 V microcontrollers. The g-Select inputs (g-Select1, g-Select2) let the system trade dynamic range for resolution at runtime - useful for orientation detection that must remain accurate under both gentle motion and drop events. Architecturally, the MMA7261Q uses a polysilicon surface-micromachined structure with a sealed cavity over the proof mass, paired with a chopper-stabilized gain stage that minimizes 1/f noise and temperature drift. The X and Y axes share one pair of capacitance plates per axis, while the Z axis uses a separate through-wafer structure, which accounts for its lower nominal bandwidth. The output is specified at the factory over temperature and laser-trimmed for sensitivity and zero-g offset. Typical applications include tilt and orientation sensing in portable consumer electronics, hard-disk drive free-fall detection, gaming motion controllers, activity monitoring in fitness wearables, and anti-theft motion alarms. The wide dynamic range also suits industrial vibration monitoring on rotating equipment and shipping-condition monitoring in logistics tags. When designing with the MMA7261Q, place decoupling capacitors within 3 mm of VDD, keep the analog outputs away from switching nodes to preserve SNR, and add a 10 kΩ series resistor on each analog output if driving long cables. This page synthesizes distributor pricing, same-family NXP drop-in alternatives such as MMA7260Q, MMA7361L, and MMA7455L (same QFN-16 footprint or close pad-compatible variants), cross-brand MEMS accelerometer alternatives, and practical design notes not found in the original Freescale datasheet, organized specifically for engineers searching for a drop-in replacement or new design entry point.
MMA7261QR2 - ±2.5g/10g 3-Axis Accelerometer | NXP | 16-QFN
The NXP Semiconductors MMA7261QR2 is a 3-axis low-g micromachined accelerometer with selectable sensitivity of ±2.5g, ±3.3g, ±6.7g, or ±10g, housed in a 16-pin QFN (6 mm × 6 mm) package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, and a g-Select digital interface for in-application sensitivity switching. The output is analog ratiometric to the supply, simplifying ADC interfacing. An accelerometer (also called a g-sensor) is a MEMS device that measures proper acceleration along one or more axes. The MMA7261QR2 is a 3-axis accelerometer, meaning it senses motion in X, Y, and Z simultaneously. Capacitive-sensing MEMS accelerometers occupy the product hierarchy: accelerometer -> MEMS motion sensor -> inertial sensor -> sensor IC -> semiconductor. These devices translate gravitational and inertial force into a measurable electrical signal for tilt, vibration, shock, and motion detection. Key specifications include a maximum supply of 3.6 V (typical 3.3 V operation), supply current of 500 µA, zero-g offset full-scale span and filter characteristics trimmed at the factory, and selectable bandwidths of 350 Hz (X, Y) or 150 Hz (Z). The g-Select (g-SEL1, g-SEL2) logic inputs allow four sensitivity ranges to be chosen in-circuit. Sleep mode reduces supply current to 3 µA, enabling battery-powered portable designs. The capacitive sensing cell uses a polysilicon micromachined structure suspended over fixed beams. Deflection under acceleration changes the differential capacitance, which is converted to a ratiometric analog voltage by an on-chip ASIC. The integrated low-pass filter limits high-frequency alias noise before the output stage. Factory calibration of offset and sensitivity supports <10 % total error over the operating range. Typical applications include portable consumer electronics such as cell phones, PDAs, MP3 players, handheld games, and PND dead-reckoning; HDD freefall detection and laptop computer security; and industrial / medical motion monitoring. The wide dynamic range and selectable full scale make it well suited to battery-powered gadgets where the g range can be dynamically optimized for activity versus freefall. When designing in the MMA7261QR2, place the decoupling capacitor within 1 cm of the supply pin and route g-Select lines to GPIO outputs so application firmware can switch range on the fly. Confirm mechanical isolation from PCB flexure and vibration to avoid output noise in handheld products. This page synthesizes distributor live inventory, drop-in accelerometer substitutes, and design notes that go beyond the manufacturer datasheet to help engineers evaluate the MMA7261QR2 for new designs or legacy replacements.
MMA7330LR1 - ±4g/±12g 3-Axis Analog Accelerometer | NXP
The NXP Semiconductors MMA7330LR1 is a low-power, low-profile capacitive micromachined three-axis analog-output accelerometer with selectable ±4g or ±12g full-scale range, housed in a 14-lead LGA (3x5 mm) surface-mount package. It features signal conditioning, a 1-pole low-pass filter, temperature compensation, self-test, and g-Select for switching between two sensitivities. The accelerometer measures X, Y, and Z axes with bandwidths of 400 Hz (X, Y) and 300 Hz (Z) and operates from a 2.2 V to 3.5 V analog supply plus a separate 1.71 V to 3.5 V digital supply. An accelerometer (IC: see Software) is a micro-electromechanical systems (MEMS) sensor that measures proper acceleration along one, two, or three orthogonal axes and converts that mechanical input into an electrical signal. The MMA7330LR1 belongs to the analog accelerometer family within the broader sensor hierarchy: accelerometer -> motion sensor -> inertial sensor -> MEMS device -> sensor IC. Analog-output parts remain in widespread use because they interface directly to low-cost microcontroller analog-to-digital converters (ADC) without needing a dedicated digital driver stack such as I²C or SPI. Key specifications include 800 mV/g sensitivity (at 3.3 V supply, ±4g mode), 1.5 mg/√Hz typical noise floor, factory-trimmed offset and sensitivity requiring no external components, and an integrated g-Select logic input that lets the host microcontroller toggle between ±4g and ±12g full-scale at runtime. The device draws 400 µA typical supply current, includes a self-test pin that simulates a defined acceleration for end-of-line verification, and survives 10,000 g mechanical shock per the NXP test methodology. The capacitive sensing cell uses a differential capacitor structure whose deflection produces a proportional ratiometric analog output voltage centered at Vdd/2. The on-chip ASIC performs amplification, temperature compensation, low-pass filtering, and gain setting for the two selectable ranges. Ratiometric output means the zero-g offset and sensitivity scale linearly with supply voltage, simplifying ADC calibration in 3.3 V systems. Typical applications include tilt sensing in handheld electronics, free-fall detection in hard disk drives and portable computers, vibration monitoring in industrial equipment, motion-based user input for game controllers and remote controls, and orientation detection in consumer appliances. The wide ±12g range additionally supports impact logging in sports and packaging equipment. When designing with this part, place a 0.1 µF decoupling capacitor adjacent to both Vdd and VddIO pins and route the analog output traces away from switching converters to preserve the 1.5 mg/√Hz noise floor. Always enable self-test during power-on to confirm transducer integrity before trusting the output.
MMA7330LT - ±4g/±12g 3-Axis Analog Accelerometer | NXP | 14-LGA
The NXP MMA7330LT is a 3-axis analog-output micromachined accelerometer featuring selectable ±4g or ±12g full-scale range, housed in a 14-pin LGA (3x5 mm) surface-mount package. It provides conditioned analog voltage outputs proportional to acceleration on the X, Y, and Z axes, with 400 Hz X/Y bandwidth and 300 Hz Z bandwidth. An accelerometer is a micro-electromechanical (MEMS) sensor that measures linear acceleration by detecting the displacement of a proof mass relative to the device frame; this displacement is converted via capacitive sensing into an analog voltage. The MMA7330LT belongs to the MEMS accelerometer family within the broader sensor and motion-sensing taxonomy, which sits under inertial measurement units (IMUs). Its selectable g-range via the g-Select pin allows a single device to serve both high-resolution low-g applications (tilt, vibration, motion) and higher-g event detection. Key features include selectable ±4g / ±12g dynamic range, 308 mV/g sensitivity at ±4g and 83.6 mV/g at ±12g (with g-Select), integrated 1-pole low-pass filter, on-chip temperature compensation, self-test capability, and 2.2 V to 3.6 V single-supply operation. The 14-LGA 3x5 mm footprint is designed for reflow-compatible hand-held and consumer assembly. Architecturally, the part is a capacitive micromachined accelerometer with dedicated signal conditioning and a g-Select digital input that switches the internal gain between full-scale ranges. The conditioning path includes offset and temperature compensation calibrated at the factory, plus a self-test input that applies a known electrostatic force to verify sensor integrity. Typical applications include HDD freefall detection, portable consumer electronics motion input, tilt and orientation sensing, vibration monitoring, and gaming or remote-control human-interface devices. In each case the analog voltage is digitized by the host MCU's ADC for further processing. A key design consideration when laying out the MMA7330LT: orient the LGA package so the indicated acceleration axes (X, Y, Z) match the device coordinate system of the host board; misalignment produces cross-axis errors that cannot be calibrated away by software. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet.
MMA7340LR1 - ±3g/±11g 3-Axis Analog Accelerometer | NXP
The NXP Semiconductors MMA7340LR1 is a low-power, low-profile capacitive micromachined 3-axis analog accelerometer with selectable ±3g and ±11g measurement ranges, factory-calibrated sensitivity and zero-g offset, integrated signal conditioning, a 1-pole low-pass filter, temperature compensation, self-test, and a Sleep mode. It is housed in a 14-pin LGA (3x5 mm) package and provides three independent analog voltage outputs proportional to acceleration on the X, Y, and Z axes. An accelerometer (also called a g-sensor) is a MEMS (Micro-Electro-Mechanical Systems) motion sensor that converts linear acceleration into an electrical signal. The MMA7340LR1 belongs to the MEMS accelerometer product family, which sits within the broader hierarchy of motion sensors -> inertial measurement units -> position/velocity sensors. Capacitive micromachined accelerometers use a suspended proof mass whose deflection changes the capacitance between interdigitated comb fingers; this capacitance change is then converted to a voltage by on-chip ASIC signal conditioning. Key features of the MMA7340LR1 include a g-Select input (logic low for ±11g, logic high for ±3g) that lets the host trade sensitivity for dynamic range, a self-test input that verifies mechanical and electrical integrity at power-up, a hardware-controlled Sleep mode that drops current to a few microamps for battery-powered applications, and a factory-trimmed zero-g offset that eliminates external trim components. The 1-pole low-pass filter limits bandwidth-induced noise on the analog output. The MMA7340LR1 uses an analog voltage output architecture (one ratiometric VOUT pin per axis) rather than a digital interface such as SPI or I2C. This makes it directly compatible with any ADC-equipped microcontroller without requiring a digital protocol stack, while still being immune to most digital bus noise. The g-Select pin allows the same PCB to support both a sensitive low-g mode (for tilt/inclinometer use) and a high-g mode (for shock/vibration capture). Typical applications include handheld device tilt and orientation detection, free-fall detection for hard-disk drive protection, motion-activated user interfaces, vibration and tilt monitoring in industrial equipment, fitness and activity monitors, and gaming controller motion input. When designing with this part, place the device near the PCB center to minimize centroid offsets, route the analog outputs over a quiet ground plane, and add an RC anti-alias filter between the sensor and the host ADC. The 3x5 mm LGA requires reflow soldering; the exposed pad on the underside should be soldered to the board ground plane for thermal dissipation and mechanical stability. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving an engineer a single decision-ready reference.
MMA7360LR1 - ±1.5g/±6g 3-Axis Analog Accelerometer | NXP
The NXP Semiconductors MMA7360LR1 is a low-power, low-profile capacitive micromachined analog accelerometer that measures acceleration along three orthogonal axes with selectable ±1.5g or ±6g dynamic range. Housed in a 14-pin LGA (3x5 mm) package, the device integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, a self-test function, and a g-Select input for in-flight range switching. Output is a ratiometric analog voltage on each of three axes with a sensitivity of 800 mV/g in ±1.5g mode and 200 mV/g in ±6g mode at a 3.3V supply. An accelerometer is a micro-electromechanical sensor (MEMS) that converts mechanical acceleration into an electrical signal. Three-axis (X, Y, Z) accelerometers sit at the bottom of the sensor hierarchy as motion sensors, branch upward into inertial measurement units (IMUs) when combined with gyroscopes, and ultimately form part of the broader sensor and signal-conditioning chain in embedded and industrial designs. The MMA7360 family was one of the earliest low-g analog-output 3-axis parts aimed at consumer and industrial tilt, motion, and freefall detection. Key features include a 400 Hz X/Y and 300 Hz Z bandwidth, 0g-Detect freefall output, low 400 uA typical supply current, 2.2V to 3.6V supply range, and a 1.5 mA active self-test mode. The g-Select pin allows the host microcontroller to toggle between ±1.5g (high-resolution tilt sensing) and ±6g (shock/vibration sensing) ranges without hardware reconfiguration, while the 0g-Detect interrupt pin signals linear freefall - useful for hard-disk drop protection and portable-device sleep modes. The MMA7360LR1 uses a surface-micromachined capacitive sense element with on-chip CMOS signal conditioning, providing a stable 0g offset over temperature and a ratiometric output that scales with supply voltage. The internal architecture combines a Wheatstone-bridge MEMS structure, charge-integrating amplifier, and bandgap reference, delivering low noise density and predictable temperature behavior across the -40C to +85C operating range. Typical applications include tilt sensing in handheld electronics and appliances, freefall detection in laptops and removable storage, motion-activated user interfaces, vibration monitoring in industrial equipment, and gaming or remote-control inertial input. With its small 3x5 mm LGA footprint, the MMA7360LR1 is also a common choice for wearable prototypes and consumer IoT motion modules. When designing with the MMA7360LR1, ensure decoupling capacitors are placed within 5 mm of the supply pin and route the analog outputs over a continuous ground plane to limit digital switching noise from coupling into the ratiometric output. The self-test pin should be exercised only after the part has fully powered up to avoid false triggering of the 0g-Detect line. This page synthesizes distributor stock and pricing, drop-in cross-brand accelerometer alternatives, and practical design notes not found in the manufacturer datasheet alone, enabling faster component selection and BOM validation for accelerometer designs.
MMA7360LR2 - ±1.5g/±6g 3-Axis Low-g Accelerometer | NXP
The NXP MMA7360LR2 is a low-power, low-profile capacitive micromachined accelerometer that measures acceleration along three orthogonal axes (X, Y, Z) with user-selectable full-scale ranges of ±1.5g or ±6g, housed in a 14-pin LGA (3 mm x 5 mm x 1 mm) package. It integrates signal conditioning, a 1-pole low-pass filter, temperature compensation, g-Select (range switching), 0g-Detect for linear freefall, and a self-test function on a single monolithic IC, all sampled at bandwidths up to 400 Hz (X, Y) and 300 Hz (Z). An accelerometer (specifically a micro-electro-mechanical systems / MEMS accelerometer) is a sensor that measures proper acceleration - the rate of change of velocity relative to freefall - and converts that physical quantity into a proportional analog or digital output. The MMA7360LR2 belongs to the low-g MEMS accelerometer family, optimized for measuring accelerations well below the full-scale range of higher-g automotive crash-sensing devices. In a system hierarchy, it sits under motion sensor -> inertial sensor -> accelerometer -> MEMS sensor -> semiconductor. Its capacitive sensing cell is fabricated using surface-micromachined polysilicon structures, and the on-chip ASIC performs charge-to-voltage conversion, amplification, and filtering before delivering a ratiometric analog output. Key differentiating features include 800 mV/g typical sensitivity at 1.5g (206 mV/g at 6g), a low 3 µA sleep-mode current that makes it suitable for battery-powered devices, a fast power-on response, and a robust self-test capability that verifies mechanical and electrical integrity at every startup. The g-Select pin lets a microcontroller switch between high-resolution ±1.5g mode and wider ±6g mode on the fly. Unlike digital-output accelerometers that require an I²C/SPI interface, the MMA7360LR2 provides three independent analog voltages that can be read directly by an ADC, simplifying firmware. Typical applications include tilt sensing in consumer electronics, motion-activated user interfaces, portable gaming and gesture recognition, freefall detection for hard-disk drive protection, vibration monitoring in industrial equipment, and orientation detection in robotics and drones. Its small footprint and low current consumption also make it attractive for wearable and IoT edge devices. When designing with this device, place 0.1 µF decoupling capacitors close to the VDD and VDDIO pins and provide a low-impedance ground plane under the LGA pad to minimize noise. Avoid mechanical stress on the package, and verify orientation against the printed axis indicators on the datasheet's mechanical drawing to ensure correct X/Y/Z mapping. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone, accelerating component selection and PCB bring-up.
MMA7360LT - ±1.5g/±6g 3-Axis Analog Accelerometer | NXP | 14-LGA
The NXP MMA7360LT is a low-power, low-profile capacitive micromachined three-axis analog accelerometer with selectable ±1.5g or ±6g measurement ranges, housed in a 14-pin LGA (3 mm x 5 mm) surface-mount package. The device delivers conditioned analog outputs on independent X, Y, and Z axes with bandwidths of 400 Hz on the X/Y channels and 300 Hz on the Z channel, plus a 1-pole low-pass filter, temperature compensation, g-Select input for switching full-scale range, self-test, and 0g-Detect for linear freefall detection. An accelerometer is a micro-electromechanical systems (MEMS) sensor that measures proper acceleration along one or more axes and converts the mechanical displacement of a proof mass into an electrical signal. The MMA7360LT sits within the broader sensor hierarchy of MEMS -> motion sensor -> accelerometer -> low-g accelerometer -> analog accelerometer. Analog accelerometers like the MMA7360LT output a continuous voltage proportional to acceleration, contrasting with digital-output parts that emit I2C/SPI data. These parts are widely used where designers prefer to feed the sensor signal directly into an analog-to-digital converter (ADC) of their own choosing or into threshold-detection comparators. Key features include a supply voltage range of 2.2 V to 3.6 V, low current consumption of 400 µA typical, a fast power-on response time of 0.5 ms, and self-test capability that deflects the proof mass on demand to verify mechanical and electrical integrity. The g-Select pin lets the host dynamically toggle between ±1.5g (high-resolution) and ±6g (high dynamic range) full-scale modes, trading sensitivity for range as needed by the application. The on-chip 0g-Detect block flags a freefall event for hard-disk drop protection and similar safety use cases. The MEMS element uses a capacitive sensing structure where differential capacitance changes in response to deflection of a suspended proof mass. The signal chain includes charge-to-voltage conversion, demodulation, and a 1-pole low-pass filter for high-frequency noise rejection. The same die is offered in different package options within NXP's MMA7360 family, with the "LT" suffix specifically denoting the 14-LGA tape-and-reel variant. Designers can pair the analog outputs with op-amp gain stages before an ADC, or feed each axis into a microcontroller's ADC channel directly. Typical applications include hard-disk drive freefall protection, portable consumer electronics such as mobile phones and gaming controllers, vibration monitoring in industrial equipment, tilt/ orientation sensing in handheld devices, and motion-activated user interfaces. The dual g-range makes it well suited to gaming applications that need both subtle tilt sensing and rough-motion shock detection. When designing with this device, place 0.1 µF decoupling capacitors as close as possible to the VDD and GND pins and keep the analog traces short to minimize coupled noise. Take care to choose between ±1.5g and ±6g full-scale based on the expected vibration and shock environment in the end product, because exceeding the selected range clips the output. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, enabling engineers to compare the MMA7360LT against competing sensors with matched specifications and verified pin-compatible substitutes.
MMA7455LT - ±2g/4g/8g 3-Axis Accelerometer LGA-14 | NXP
The NXP MMA7455LT is a 3-axis low-g digital-output accelerometer housed in a 14-pin LGA (3 mm × 5 mm) surface-mount package. It offers user-selectable measurement ranges of ±2 g, ±4 g, and ±8 g, with digital output available via both I²C and SPI serial interfaces. Per the manufacturer datasheet, it features signal conditioning, a low-pass filter, temperature compensation, self-test, configurable 0 g detection interrupt pins (INT1/INT2), and pulse detect for quick motion detection. An accelerometer is a micro-electro-mechanical sensor (MEMS) that converts linear acceleration along one or more axes into a measurable electrical signal. Within the broader taxonomy of MEMS devices, the MMA7455LT belongs to the inertial-sensor family, specifically the low-g accelerometer category used for tilt, motion, orientation, and vibration sensing in consumer and industrial products. Compared to higher-g (>50 g) impact sensors, low-g accelerometers like the MMA7455LT target sub-10 g signals such as gravity, falls, gestures, and human motion. Key performance features include selectable 8-bit output in ±2 g / ±4 g mode or 10-bit output in ±8 g mode, 62.5 Hz / 125 Hz selectable output data rate, integrated motion-detection and pulse-detection interrupts, factory-set 0 g offset and sensitivity that require no external trim components, and low-power operation suitable for battery-powered portable systems. The part supports both 2.4 V–3.6 V supply voltage ranges and tolerates mechanical shock up to 5,000 g. Architecturally, the MMA7455LT uses capacitive micromachined sense elements with a CMOS signal-conditioning ASIC. The sense element is a movable proof mass whose movement under acceleration changes the capacitance between fingers; signal conditioning converts this capacitance change into a digital value. Temperature compensation and factory trim provide stable readings across the operating range. Typical applications include personal activity monitors (Pedometers, fitness bands), mobile device tilt and orientation detection (smartphones, tablets, remotes), handheld gaming controllers, hard-disk drive free-fall protection, and user-interface gesture recognition. The wide operating range makes it equally suited to portable consumer and some industrial equipment. When designing with this part, place decoupling capacitors as close as possible to the supply pin and follow the PCB layout recommendations in the datasheet to minimize noise pickup. The INT1/INT2 pins must be configured in software via the mode registers before they can drive external interrupts. This page synthesizes distributor stock data from authorized channels, drop-in alternatives verified against the same 14-LGA footprint, and practical design notes that complement—but do not replace—the manufacturer datasheet.
MMA8205EGR2 - ±50g X-Axis MEMS Accelerometer SOIC-16 | NXP
The NXP MMA8205EGR2 is a digital X-axis micromachined accelerometer with ±50g measurement range, housed in a 16-pin SOIC (SOIC-16) surface-mount package. It is part of the Freescale/NXP MMA82XXEG family of DSI 2.0-compatible (Digital Serial Interface) accelerometers that integrate MEMS sensing elements with on-chip digital signal processing for filtering, trim, and data formatting. An accelerometer is a MEMS (Micro-Electro-Mechanical Systems) sensor that measures proper acceleration along one or more axes. The MMA8205EGR2 is a single-axis (X-axis) device, placing it in the broader sensor hierarchy: accelerometer -> motion sensor -> MEMS device -> sensor IC -> semiconductor. It uses a capacitive sensing element whose deflection under acceleration is digitized on-chip. Key specifications include an acceleration range of ±50g, single-axis X-direction sensing, integrated digital signal processing, surface-mount 16-SOIC package, lead-free / RoHS compliant construction, and DSI 2.0 protocol support. The device converts the sensed acceleration into a digital output suitable for direct connection to a microcontroller or ECU. Built-in filtering reduces high-frequency noise, while trim capability compensates for factory offset and sensitivity variations. The DSI 2.0 interface simplifies wiring by carrying power, ground, and bidirectional data on a reduced pin count. This architecture is optimized for automotive-grade applications including airbag deployment sensors, electronic stability control (ESC), rollover detection, and chassis control systems, where the high ±50g range supports short-duration crash-pulse measurement. Typical applications include automotive airbag crash sensing, vehicle dynamic control (VDC), seatbelt pretensioner triggers, rollover sensing modules, and industrial impact/vibration monitoring. The wide g-range supports the high-shock events typical of crash pulses. When designing with the MMA8205EGR2, follow Freescale/NXP reference layout guidelines for the SOIC-16 footprint, ensure the DSI 2.0 master supplies correct clock and framing, and account for the sensor's temperature sensitivity by applying compensation stored in the on-chip trim registers. This page synthesizes distributor pricing, drop-in alternatives from the MMA82XX family, and practical design notes not found in the manufacturer datasheet alone.
MMA8205TEGR2 - ±50g X/Z-Axis Digital Accelerometer | NXP | 16-SOIC
The NXP Semiconductors MMA8205TEGR2 is a digital single-axis (X or Z axis selectable) MEMS accelerometer with a ±50g full-scale range, housed in a 16-pin SOIC-300mil surface-mount package. The device outputs acceleration data through an SPI-compatible serial interface and operates from a single 6.3 V to 30 V supply rail over an automotive temperature range of -40 °C to +125 °C. According to the NXP datasheet, the MMA8205TEGR2 integrates a MEMS sensor element, a sigma-delta analog front-end, and on-chip digital filtering to deliver a robust acceleration measurement channel for crash detection and motion sensing. An accelerometer is a MEMS (Micro-Electro-Mechanical Systems) sensor that measures proper acceleration along one or more axes, converting mechanical displacement of a proof mass into a proportional electrical signal. In the broader taxonomy, the MMA8205TEGR2 belongs to the inertial sensor family, which is itself a sub-category of motion sensors and a subset of physical sensors. Single-axis accelerometers typically serve high-g applications such as airbag deployment, side-impact detection, rollover sensing, and industrial vibration monitoring where multi-axis devices are unnecessary or cost-prohibitive. Key specifications of the MMA8205TEGR2 include a ±50 g full-scale range, integrated self-test capability, signal conditioning with on-chip low-pass filtering, and a self-clocked SPI output. The wide 6.3 V to 30 V supply range allows direct connection to automotive 12 V or 24 V battery rails without additional pre-regulation, simplifying ECU power tree design. The SOIC-16 package with 300-mil body width is compatible with standard PCB assembly processes used in automotive electronics manufacturing. The MMA8205TEGR2 uses a differential capacitive sensing architecture: a silicon proof mass moves between fixed plates, creating a capacitance change proportional to acceleration. On-chip circuitry converts this capacitance change into a digital word using sigma-delta modulation and decimation filtering. The integrated signal chain eliminates the need for external analog-to-digital conversion and provides inherent immunity to electrical noise on the sensor element, a critical feature for automotive EMI environments. Typical applications for the MMA8205TEGR2 include airbag crash sensors, seatbelt pretensioner triggers, side-impact detection modules, industrial vibration monitors, and machinery impact alarms. Its ±50 g range and ruggedized package make it particularly suitable for events involving rapid, high-magnitude acceleration transients. When designing with the MMA8205TEGR2, ensure the host microcontroller samples the SPI output at the proper clock rate and applies the correct g-per-LSB scaling factor. Bypass capacitors placed close to the supply pins are mandatory to suppress the switching transients commonly present on automotive power buses. Verify ESD handling procedures, as automotive-grade MEMS sensors require controlled manufacturing environments. This page synthesizes NXP datasheet specifications, distributor pricing, drop-in alternative pin-compatible parts, and practical design notes that go beyond what the manufacturer datasheet alone provides, giving engineers a complete evaluation reference for airbag and high-g sensing designs.
MMA8210EGR2 - ±100g X-Axis Accelerometer | NXP SOIC-16
The NXP MMA8210EGR2 is a single-axis (X-axis), ±100g digital micromachined silicon accelerometer housed in a 16-pin SOIC package, designed for high-shock and vibration sensing in automotive and industrial embedded systems. An accelerometer is a micro-electromechanical systems (MEMS) sensor that measures proper acceleration along one or more axes, converting gravitational or inertial force into a digital or analog output proportional to g-force. Within the broader hierarchy, the MMA8210EGR2 belongs to the family of MEMS sensors -> motion sensors -> inertial measurement units -> semiconductor sensors. Its DSI 2.0-compatible digital interface and on-chip digital signal processing enable direct connection to microcontrollers without external analog-to-digital conversion, simplifying host firmware while preserving measurement fidelity under harsh mechanical and thermal stress. The MMA8210EGR2 reports an acceleration range of ±100g along the X axis, with on-chip digital filtering, factory trim, and data formatting that eliminate per-unit calibration on the customer side. The device operates from a single low-voltage supply, supports a DSI 2.0 digital interface for serial communication, and integrates self-test capability for in-system verification of mechanical and electrical integrity. The surface-mount SOIC-16 footprint supports high-volume PCB assembly and standard reflow profiles, while the silicon micromachined structure delivers excellent shock survival and long-term offset stability. Typical applications include automotive airbag and supplemental restraint systems, electronic stability control and rollover detection, industrial vibration monitoring, and harsh-environment motion event recording. The wide ±100g dynamic range makes it particularly well-suited for crash detection and high-impact event capture, where transient accelerations exceed the range of consumer-grade accelerometers. When designing with this device, follow the manufacturer's recommended PCB layout for the SOIC-16 footprint, provide adequate decoupling near the supply pin, and respect the DSI 2.0 timing specifications to ensure reliable communication. Confirm operating temperature window against the target application's ambient profile before deployment. This page consolidates distributor pricing, lifecycle status, drop-in alternatives, and design considerations not always present on the manufacturer datasheet, giving engineers a single reference for part selection, sourcing, and board-level integration.
MMA8210TEGR2 - ±100g Digital X-Axis Accelerometer | NXP
The NXP MMA8210TEGR2 is a digital X-axis (or Z-axis, per pin configuration) accelerometer offering a ±100 g full-scale range, packaged in a 16-SOIC (300 mil) form factor. It is a micromachined (MEMS) capacitive sensor with on-chip signal conditioning, converting measured acceleration into a digital output via its DSI (SPI-compatible) interface, operating across a 6.3 V to 30 V supply range. An accelerometer is a sensor that measures proper acceleration along one or more axes, providing a digital or analog representation of tilt, vibration, shock, or motion. Within the broader taxonomy, MMA8210TEGR2 is an inertial sensor -> MEMS accelerometer -> motion sensor -> sensor IC. It serves as a bridge between physical motion and digital signal processing in safety-critical and embedded systems. Key features of the MMA8210TEGR2 include a wide ±100 g dynamic range suitable for crash detection and high-shock events, a low current consumption profile suited to always-on applications, and a robust 16-SOIC package that simplifies hand-soldered prototyping and through-hole-compatible reflow profiles. The operating temperature range spans -40 °C to +125 °C, making it automotive-qualified. From a technical perspective, the part integrates a surface-micromachined sense element whose deflection produces a capacitance change, sampled by an on-board sigma-delta converter. The mechanical-to-digital conversion is performed locally, reducing MCU load and improving noise immunity compared to analog-output MEMS accelerometers. The supply range tolerates automotive load-dump transients. Typical applications include automotive airbag deployment systems, electronic stability control, industrial vibration monitoring, and IoT shock/impact detectors. The DSI digital interface simplifies connection to microcontrollers, reducing PCB complexity. In design, engineers should note that the DSI interface is a non-standard SPI variant and the microcontroller driver must match NXP's protocol. Local bypass capacitance of 100 nF plus 10 µF near the supply pins is critical for noise performance. This page synthesizes NXP datasheet parameters, distributor stock, and pin-compatible alternatives beyond what any individual datasheet provides.
MMA8225KEG - ±250g X-Axis Accelerometer, DSI 2.0, 16-SOIC | NXP
The NXP MMA8225KEG is a high-g, X-axis automotive MEMS accelerometer with ±250 g full-scale range, packaged in a 16-pin SOIC surface-mount package. It is part of NXP's MMA82XXEG family of satellite accelerometers, which support the Distributed Sensor Interface (DSI) 2.0 protocol for automotive airbag, seatbelt-pretensioner, and suspension-sensing applications. The 12 V analog supply and integrated signal conditioning simplify host-side firmware in safety-critical in-vehicle networks (IVN). An accelerometer is a micro-electromechanical systems (MEMS) sensor that converts linear acceleration into an analog or digital output proportional to force on the proof mass. High-g (≥100 g) accelerometers detect short-duration shocks and crashes, distinguishing them from low-g (~2 g) consumer / industrial parts used for tilt and motion tracking. Within the automotive sensor hierarchy, the MMA8225KEG sits under safety satellite sensors, complementing the central airbag ECU rather than serving as a stand-alone crash detector. Key features include ±250 g dynamic range, single-axis (X) sensing per the MMA82XXEG ordering scheme, 12 V analog supply, on-chip signal conditioning with low-pass filtering, and DSI 2.0 digital interface compatibility for daisy-chained satellite topology. The 16-pin wide-body SOIC package supports automotive reflow profiles and provides mechanical robustness for underbody mounting. Internal self-test and fault-diagnostic routines support ISO 26262 functional-safety integration at the system level. The MMA8225KEG uses a surface-micromachined capacitive sense element with a BiCMOS signal-chain ASIC in a side-by-side monolithic layout. Analog output is ratiometric with supply and integrated into NXP's DSI protocol for multiplexed communication up to four satellite sensors per ECU. The architecture targets the in-cabin, low-to-mid-mounting locations in vehicles with distributed crash-zone sensing. Typical applications include front and side airbag satellite sensors (peripheral acceleration nodes (PAN)), up-front crash sensing, seatbelt-pretensioner triggers, and suspension / ride-height sensing subsystems. DSI compatibility enables the part to share a wiring harness with companion MMA81XXEG Z-axis sensors on the same IVN bus. When designing with the MMA8225KEG, follow NXP application notes for PCB layout (place decoupling capacitors within 5 mm of VCC and GND), maintain keep-out zones around port openings for the X-axis sense direction, and respect DSI 2.0 bus termination conventions for EMI-robust operation in automotive environments.