FREESCALE D3172MMA7361L

Sensors
ZSTAR3 Accelerometer Family Expansion
Multiple wireless sensing triple-axis reference design
Overview
The ZSTAR3 system accommodates multiple
MMA7660FC ZSTAR3
digital and analog accelerometer boards,
connected through an RF ZigBee® 2.4 GHz
MMA7660FC 3 x 3 x 0.9 mm DFN
or MMA7361L triple-axis analog
accelerometer 3 x 5 x 1 mm LGA
communication to a single USB node connected
to a PC. The accelerometer boards measure
acceleration in three axes using a pin compatible
MC13191
MC13213
digital or, optionally, an analog sensor. The
sensor sensitivity is defined by the selected
accelerometer. The USB node is part of the
ZSTAR design, equipped with dedicated software
supporting multiple nodes.
Buttons
Freescale is now offering the next-generation
ZSTAR3 with the MMA7660FC accelerometer
that offers extended functionality. The new PC
software showcases the built-in intelligence of
LED
the MMA7660FC for consumer applications with
orientation, shake, tap detection, auto-wake and
auto-sleep. The ZSTAR3 is a small portable
board design that utilizes the following products:
LEDs (3)
Antenna
Button
HC908JW32
• MMA7660FC or MMA7455L digital triple-axis
accelerometers
• MC1321x 2.4 GHz low-power transceivers
and an S08 MCU in one package
• MC68HC908JW32 USB 2.0 full-speed
8-bit MCU
Target Applications
The ZSTAR3 design provides small portable
boards with the capacity to demonstrate and
evaluate various accelerometer applications
that accommodate a cost-effective, low-power
wireless connection. Applications include:
• Mobile phones
• Hand-held gaming devices
• Portable media players
• MP3 players
Competitive Advantages
Feature
Description
Multi-axis
acceleration sensor
• Ultra small size
• High sensitivity and selectable g-range of acceleration for multi-functional applications
• Fast power-up response time
MC13213 (ZigBeecompliant platform—
2.4 GHz low-power
transceiver plus
microcontroller)
• Cost-effective solution for fast time to market
• ZigBee 2.4 GHz allows global deployment and mesh networks
• System in package (SiP) means reduced PCB size of the
solution and less external components
MC68HC908JW32
USB 2.0 full-speed
8-bit MCU
• Available with a variety of memory sizes and types, modules
and packages
• Easy to learn and use architecture
• C-optimized architecture provides compact code
Low-power, low-current
operation
• Battery life extension
• PDAs
• Personal computer peripherals
• GPS navigation devices
• Remote controls
MMA7660FC Digital Accelerometer
ZSTAR3 Software Concepts
• ±1.5g three-axis digital accelerometer
Sensor Board
with I2C
• Small, low-profile 3 x 3 x 0.9 mm
DFN package
• MMA7660FC low current consumption
LED
Buttons
specifications
Off mode: 0.4 μA
Standby mode: 2 μA
GPIO
Data Buffer
KBI
GPIO
Sensor
Active mode: 47 μA at one sample
S
M
A
C
RF
Modem
2.4 GHz
Sensor Data
Collector
and Driver
I2 C
ADC
per second
RF
Protocol
Handler
Configurable output data rate from 1
to 120 samples per second
• Configurable orientation detection for
portrait/landscape capability
Six orientations: left, right, up, down,
back and front
• Gesture detection, including shake and
tap detection
USB Stick
LEDs
MC13191
RF
Modem
2.4 GHz
Sensors Data
GPIO
SPI
S
M
A
C
RF
Protocol
Handler
RF
Protocol
Handler
USB
Driver
USB
USB
Port
MMA7455L Digital Accelerometer
• Digital output (I2C/SPI) for processor system
performance
• Small, low-profile 3 mm x 5 mm x 1 mm
14-pin LGA package
• XYZ: three axes of sensitivity in one device
(2g, 4g, 8g)
• Single or double click (pulse) recognition
• High sensitivity
64 LSB/g at 2g
Wireless Sensing Triple-Axis Reference Design (ZSTAR) Development Tool Family
Part Number
Description
RD3965MMA7660FC
ZSTAR3 featuring the MMA7660FC digital accelerometer
RD3172MMA7455L
ZSTAR3 featuring the MMA7455L digital accelerometer
D3172MMA7361L
Analog sensor only for the ZSTAR3
D3172MMA7455L
Digital sensor only for the ZSTAR3
64 LSB/g at 8g in 10-bit mode
MC13213 ZigBee Platform
• IEEE 802.15.4 standard compliant on-chip
transceiver/modem
• 2.4 GHz
• 16 selectable channels
• Programmable output power
• Multiple power saving modes
• 2V to 3.4V operating voltage with on-chip
voltage regulators
Learn More:
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in the U.S. and other countries. All other product or service names are the property of their respective owners.
© Freescale Semiconductor, Inc. 2009
ZSTAR3BOARDFS
REV 2
For more information about Freescale sensor
tools, please visit www.freescale.com/zstar.