MMA7455LR1 Freescale, MMA7455LR1 Datasheet - Page 27

• Manufacturer Part Number: MMA7455LR1
• Manufacturer: Freescale

Specifications of MMA7455LR1

• Family Name: MMA7455L
• Package Type: LGA
• Operating Supply Voltage (min): 2.4V
• Operating Supply Voltage (typ): 2.8V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 3mm
• Product Height (mm): 1mm
• Product Length (mm): 5mm
• Mounting: Surface Mount
• Pin Count: 14
• Lead Free Status / RoHS Status: Compliant

$1A: Level Detection Threshold Limit Value (Read/Write)
LDTH[7:0]: Level detection threshold value. If THOPT bit in Detection Control Register is “0”, it is unsigned 7 bits value and
LDTH[7] should be “0”. If THOPT bit is “1”, it is signed 8 bits value.
$1B: Pulse Detection Threshold Limit Value (Read/Write)
PDTH[6:0]: Pulse detection threshold value (unsigned 7 bits).
XPDTH: This bit should be “0”.
$1C: Pulse Duration Value (Read/Write)
Min: PD[7:0] = 4’h01 = 0.5 ms
Max: PD[7:0] = 4’hFF = 127 ms
1 LSB = 0.5 ms
$1D: Latency Time Value (Read/Write)
Min: LT[7:0] = 8’h01 = 1 ms
Max: LT[7:0] = 8’hFF = 255 ms
1 LSB = 1 ms
$1E: Time Window for 2nd Pulse Value (Read/Write)
Min: TW[7:0] = 8’h01 = 1 ms (Single pulse detection)
Max: TW[7:0] = 8’hFF = 255 ms
1 LSB = 1 ms
Sensors
Freescale Semiconductor
LDTH[7]
XPDTH
TW[7]
PD[7]
LT[7]
D7
D7
D7
D7
D7
0
0
0
0
0
LDTH[6]
PDTH[6]
TW[6]
PD[6]
LT[6]
D6
D6
D6
D6
D6
0
0
0
0
0
LDTH[5]
PDTH[5]
PD[5]
TW[5]
LT[5]
D5
D5
D5
D5
D5
0
0
0
0
0
LDTH[4]
PDTH[4]
TW[4]
PD[4]
LT[4]
D4
D4
D4
D4
D4
0
0
0
0
0
LDTH[3]
PDTH[3]
PD[3]
TW[3]
LT[3]
D3
D3
D3
D3
D3
0
0
0
0
0
LDTH[2]
PDTH[2]
TW[2]
PD[2]
LT[2]
D2
D2
D2
D2
D2
0
0
0
0
0
LDTH[1]
PDTH[1]
PD[1]
TW[1]
LT[1]
D1
D1
D1
D1
D1
0
0
0
0
0
LDTH[0]
PDTH[0]
TW[0]
PD[0]
LT[0]
D0
D0
D0
D0
D0
0
0
0
0
0
MMA7455L
Function
Function
Function
Function
Default
Function
Default
Default
Default
Default
Bit
Bit
Bit
Bit
Bit
27