KIT3468MMA7455L Freescale Semiconductor, KIT3468MMA7455L Datasheet - Page 11

• Manufacturer Part Number: KIT3468MMA7455L
• Description: KIT EVALUATION FOR MMA7456L
• Manufacturer: Freescale Semiconductor

Specifications of KIT3468MMA7455L

• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±2g, 4g, 8g
• Interface: I²C, SPI
• Sensitivity: 16, 32, 64 LSB/g
• Voltage - Supply: 2.4 V ~ 3.6 V
• Embedded: No
• Utilized Ic / Part: MMA7455
• Acceleration: 2 g, 4 g, 6 g
• Sensing Axis: Triple Axis
• Output Type: Digital
• Operating Voltage: 3.6 V
• Operating Current: 400 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

THRESHOLD DETECTION FOR MOTION AND FREEFALL CONDITIONS
CASE 1: Motion Detection
Integer Value: X >Threshold OR Y >Threshold OR Z > Threshold
Reg $18 THOPT=1; Reg 19 LDPL=0, Set Threshold to 3g, which is 47 counts (16 counts/g). Set register $1A LDTH = $2F.
CASE 2: Motion Detection
Absolute: ||X|| > Threshold OR ||Y|| >Threshold OR ||Z|| > Threshold
Reg $18 THOPT=0; Reg 19 LDPL=0, Set Threshold to 3g, which is 47 counts (16 counts/g). Set register $1A LDTH = $2F.
CASE 3: Freefall Detection
Integer Value: X < Threshold AND Y < Threshold AND Z <Threshold
Reg $18 THOPT=1; Reg 19 LDPL=1, Set Threshold to 0.5g, which is 7 counts (16 counts/g). Set register $1A LDTH = $07
CASE 4: Freefall Detection
Absolute: ||X|| <Threshold AND ||Y|| < Threshold AND ||Z||< Threshold
Reg $18 THOPT=0; Reg 19 LDPL=1, Set Threshold to +/-0.5g, which is 7 counts (16 counts/g). Set register $1A LDTH = $07.
Sensors
Freescale Semiconductor
TH = $2F
TH = $2F
TH = $D1
TH = $07
TH = $07
TH = $F9
MMA7455L
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