NXP Semiconductors KIT3376MMA7361LC

Overview

KIT3376MMA7361LC from Freescale Semiconductor is an evaluation kit for the MMA7361LC ±1.5g/±6g 3-axis capacitive MEMS accelerometer in LGA-14 package, featuring factory-trimmed zero-g offset, selectable sensitivity, 0g-detect logic output, and sleep mode consuming only 3 μA. It enables rapid prototyping of motion-sensing functions in handheld battery-powered devices such as laptops and mobile phones.

For engineers reviewing the KIT3376MMA7361LC datasheet, KIT3376MMA7361LC pinout, KIT3376MMA7361LC application, or KIT3376MMA7361LC equivalent, this kit provides verified analog output interface, self-test activation, g-select configuration, and 0g-detect signal routing - all aligned with the MMA7361LC's production-grade electrical behavior and timing specifications.

Technical Context

The KIT3376MMA7361LC implements a surface-micromachined polysilicon g-cell with switched-capacitor ASIC signal conditioning, delivering ratiometric analog outputs (XOUT/YOUT/ZOUT) referenced to VDD. Its internal 1-pole low-pass filter operates at 400 Hz (XY) and 300 Hz (Z), with no external RC components required.

It supports real-time g-range selection via g-Select pin (800 mV/g at ±1.5g, 206 mV/g at ±6g), fast enable response (0.5 ms), and integrated diagnostics including self-test (electrostatic deflection per axis) and 0g-detect logic output for freefall detection - all operating across –40°C to +85°C with supply voltage 2.2–3.6 V.

Key Specifications

Availability

KIT3376MMA7361LC is available at Aetrix Electronics and suitable for laptop freefall protection, mobile phone motion dialing, and pedometer motion sensing requiring stable component supply and validated reference design support.

Supply support for KIT3376MMA7361LC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Freescale Semiconductor (now part of NXP Semiconductors) is a global leader in embedded processing and sensor solutions, specializing in automotive, industrial, and consumer applications.

The MMA7361LC product line was designed specifically for ultra-low-power, high-sensitivity motion sensing in portable electronics - emphasizing factory-calibrated performance, integrated diagnostics, and seamless microcontroller interfacing.

FAQ

What is the primary purpose of KIT3376MMA7361LC?

KIT3376MMA7361LC is an official Freescale evaluation kit for the MMA7361LC 3-axis accelerometer. It provides a fully assembled PCB with breakout headers, decoupling capacitors, and routing for all 14 pins - enabling immediate validation of analog output behavior, 0g-detect logic timing, g-select switching, and sleep mode current draw without custom layout. The KIT3376MMA7361LC replicates production-level signal integrity and power conditions defined in the MMA7361LC datasheet.

Does KIT3376MMA7361LC include the MMA7361LC IC?

Yes, KIT3376MMA7361LC includes one mounted MMA7361LC IC in its original 14-lead LGA package (Case 1977-01). The board features soldered 0.1 µF VDD decoupling and 3.3 nF output filtering capacitors as specified in the MMA7361LC datasheet, ensuring accurate bandwidth and noise performance during evaluation. No additional components are needed to operate the KIT3376MMA7361LC with a 3.3 V supply.

How is the 0g-Detect function verified using KIT3376MMA7361LC?

The KIT3376MMA7361LC exposes the 0g-Detect pin (Pin 9) to a test header, allowing direct connection to a microcontroller interrupt input or logic analyzer. When all three axes measure near 0g acceleration (e.g., device held motionless and level), the MMA7361LC asserts a logic-high signal on this pin within 2 ms - a behavior confirmed by the KIT3376MMA7361LC's routed trace and verified against Table 2 timing specs. This enables rapid validation of freefall detection logic in laptop or HDD protection systems.

Can KIT3376MMA7361LC demonstrate both ±1.5g and ±6g ranges?

Yes, KIT3376MMA7361LC provides direct access to the g-Select pin (Pin 10), allowing users to toggle between ±1.5g (800 mV/g) and ±6g (206 mV/g) full-scale ranges. With a logic-low input, the MMA7361LC delivers higher-resolution output for subtle motion; with logic-high, it extends dynamic range for shock or drop events. This dual-range capability is electrically validated on the KIT3376MMA7361LC using standard oscilloscope measurements per Table 3 of the datasheet.

What is the sleep current measurement accuracy of KIT3376MMA7361LC?

KIT3376MMA7361LC enables precise sleep current validation: applying logic-low to the Sleep pin (Pin 7) reduces MMA7361LC supply current to 3 μA typical (per Table 2), measurable at the VDD test point with a calibrated nanoammeter. The board's low-leakage layout and absence of pull-up resistors on control lines ensure this value reflects true device behavior - critical for battery-life estimation in portable designs using the MMA7361LC.