9

AC Electrical Specifications

Parameter

Symbol

Min.

Typical

Max.

Units

Notes

Motion Delay After Reset

23

ms

From POWER_UP_RESET register write to

valid motion, assuming motion is present

Shutdown

50

ms

From SHTDWN pin active to low current

Wake from Shutdown

1

s

From SHTDWN pin inactive to valid mo-

tion. Notes: A RESET must be asserted

after a shutdown. Refer to section “Notes

on Shutdown and Forced Rest,” also note

Forced Rest Enable

1

s

From RESTEN bits set to low current

Wake from Forced Rest

1

s

From RESTEN bits cleared to valid motion

MISO Rise Time

150

300

ns

MISO Fall Time

150

300

ns

MISO Delay After SCLK

120

ns

From SCLK falling edge to MISO data

valid, no load conditions

MISO Hold Time

0.5

μs

Data held until next falling SCLK edge

MOSI Hold Time

200

ns

Amount of time data is valid after SCLK

rising edge

MOSI Setup Time

120

ns

From data valid to SCLK rising edge

SPI Time Between Write Com-

mands

30

μs

From rising SCLK for last bit of the first

data byte, to rising SCLK for last bit of the

second data byte

SPI Time Between Write and

Read Commands

20

μs

From rising SCLK for last bit of the first

data byte, to rising SCLK for last bit of the

second address byte

SPI Time Between Read and

Subsequent Commands

500

ns

From rising SCLK for last bit of the first

data byte, to falling SCLK for the first bit of

the address byte of the next command

SPI Read Address-Data

Delay

4

μs

From rising SCLK for last bit of the address

byte, to falling SCLK for first bit of data

being read

NCS Inactive After Motion

Burst

500

ns

Minimum NCS inactive time after motion

burst before next SPI usage

NCS to SCLK Active

120

ns

From NCS falling edge to first SCLK rising

edge

SCLK to NCS Inactive

(for Read Operation)

120

ns

From last SCLK rising edge to NCS rising

edge, for valid MISO data transfer

SCLK to NCS Inactive

(for Write Operation)

20

us

From last SCLK rising edge to NCS rising

edge, for valid MOSI data transfer

NCS to MISO High-Z

500

ns

From NCS rising edge to MISO high-Z

state

MOTION Rise Time

150

300

ns

MOTION Fall Time

150

300

ns

SHTDWN Pulse Width

1s

Transient Supply Current

45

mA

from 0 to 2.8 V

PixArt Imaging Inc.

Low Power LED Integrated Slim Mouse Sensor

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PixArt Imaging Inc.