Electronics Technology


World's thinnest MEMS 3-axis accelerometer

11 July 2007 Electronics Technology

Freescale has expanded its micro-electromechanical systems (MEMS)-based sensor portfolio with a 3-axis digital-output accelerometer that is 77% smaller than previous industry offerings.

Claimed to be the world's thinnest accelerometer, the MMA7450L is available in a 14-pin 3 mm x 5 mm x 0,8 mm thin plastic land grid array (LGA) package designed to meet the growing space constraints of feature-rich portable devices. Designed to simplify integration of microprocessors and microcontrollers, the device is ideal for handheld terminals that implement user interfaces based on hand movements and appliances that require movement, acceleration or inclination sensing.

The MMA7450L can communicate on both I C and SPI interface buses. The digital output streamlines communication with the MCU or microprocessor. It eliminates the need for a dedicated analog-to-digital converter and enables the sensor to share interfaces with other devices, saving further space in small-form-factor systems. Additionally, portable device manufacturers can connect the MMA7450L directly to a wireless platform, such as Freescale's i.MX architecture, or a highly integrated 8-bit MCU to design accelerometers into cellphones and portable media devices. The MMA7450L enables an array of motion-based functions, such as tilt scrolling, gaming control, tap to mute and freefall hard disk drive protection.

In addition to providing an on-board digital output, the MMA7450L embeds features such as threshold and pulse or click-detect for quick motion detection and offset calibration, eliminating the need for external memory. It also includes a g-select feature with three sensitivities (2g, 4g and 8g). This gives designers the flexibility to select the g-force detection level required for a specific application. The MMA7450L is an ideal solution for portable consumer electronics that require a fast response time, high sensitivity, low-current consumption, low-voltage operation and a standby mode in a small package.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Smallest automotive maXTouch controllers
29 July 2020, Altron Arrow, Avnet South Africa , DSP, Micros & Memory
To help enhance and ease today’s driving experience, automotive manufacturers are implementing additional touch displays beyond the centre infotainment display (CID). Supporting the application of these ...

Read more...
MOSFET half-bridge power stage
30 June 2020, Altron Arrow , Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...

Read more...
Cypress ships one billionth USB-C device
30 June 2020, Altron Arrow , News
Cypress, an Infineon Technologies company, announced that in less than five years, the company has achieved a landmark milestone by shipping its one billionth USB-C device. As the leading provider of ...

Read more...
18 V synchronous buck converters
30 June 2020, Altron Arrow , Power Electronics / Power Management
Suitable for consumer and industrial applications, Diodes Incorporated announced the AP62xxx family of high-efficiency synchronous step-down DC-DC converters including the AP62250 (2,5 A), AP62300 (3 A), ...

Read more...
MOSFET half-bridge power stage
30 June 2020, Altron Arrow , Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...

Read more...
Video Reel: Microchip’s SAM L11
30 June 2020, Altron Arrow , Multimedia, Videos
This video (www.dataweek.co.za/*jun20-sam) provides a brief overview of Microchip Technology’s SAM L11 comprehensive security solution framework and demos to make implementation of security simple. Microchip’s ...

Read more...
Dual-core wireless MCU
30 June 2020, Altron Arrow , Telecoms, Datacoms, Wireless, IoT
The STM32WBx0 is a dual-core wireless MCU based on an Arm Cortex-M4 core running at 64 MHz (application processor) and an Arm Cortex-M0+ core at 32 MHz (network processor). The STM32WBx0 Value Line ...

Read more...
MIFARE DESFire EV3 IC
30 June 2020, EBV Electrolink , Telecoms, Datacoms, Wireless, IoT
NXP Semiconductors announced its new MIFARE DESFire EV3 IC that ushers in next-generation performance, advanced security and seamless integration of mobile services for a new era of security and connectivity ...

Read more...
3 kW TVS diode arrays
30 June 2020, Avnet South Africa , Circuit & System Protection
To ensure critical operations, aviation and space systems rely on digital and logic functionality and circuitry in engine control units, environmental controls, instruments and actuators. Data centres, ...

Read more...
What’s in your healthcare monitor?
29 July 2020, Altron Arrow , Power Electronics / Power Management
System designers of portable and wireless medical monitoring devices used for in-home patient health monitoring purposes face daunting design challenges such as thermally- and space-constrained enclosures, as well as being able to transmit data without interference or interruption.

Read more...