VT5376 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

VT5376

Ultra-low power motion sensor for optical finger navigation and laser mice

STMicroelectronics 

Motion performance

VT5376

which is exactly the same as the IDLE modes except that the system wakes up only every

500 ms to check motion activity.

Table 2.

Automatic power management(1)

PowerDown pin(2) high

Motion detected

No motion detected

Motion pin (output)

High

Low

1. Write 1 to register 0x05 bit [0].

2. PowerDown pin not used in automatic power management and should be pulled high AFTER VT5376 I2C

initialization command.

Table 3.

Manual power management(1)

PowerDown pin(2) high

(sensor asleep)

Motion detected

Motion pin

(output)

Low

1. Write 0 to register 0x05 bit [0].

2. PowerDown is an input pin.

No motion

detected

Low

PowerDown pin(2) low

(sensor awake)

Motion detected

No motion

detected

High

Low

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Doc ID 13939 Rev 4

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