AC Electrical Specifications
Electrical Characteristics over recommended operating conditions. Typical values at 25 °C, V
DD3
=2.6V.
Parameter
Motion delay after reset
Shutdown
Wake from shutdown
Symbol
t
MOT-RST
t
STDWN
t
WAKEUP
1
Minimum Typical
Maximum Units
23
50
ms
ms
s
Notes
From SW_RESET register write to valid
motion, assuming motion is present
From STDWN pin active to low current
From STDWN pin inactive to valid
motion. Notes: A RESET must be
asserted after a shutdown. Refer to
section "Notes on Shutdown and
Forced Rest", also note t
MOT-RST
From RESTEN bits set to low current
From RESTEN bits cleared to valid
motion
C
L
= 100pF
C
L
= 100pF
From SCLK falling edge to MISO data
valid, no load conditions
Data held until next falling SCLK edge
Amount of time data is valid after SCLK
rising edge
From data valid to SCLK rising edge
From rising SCLK for last bit of the first
data byte, to rising SCLK for last bit of
the second data byte.
From rising SCLK for last bit of the first
data byte, to rising SCLK for last bit of
the second address byte.
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.
From rising SCLK for last bit of the
address byte, to falling SCLK for first bit
of data being read.
Minimum NCS inactive time after
motion burst before next SPI usage
From NCS falling edge to first SCLK
rising edge
From last SCLK rising edge to NCS
rising edge, for valid MISO data transfer
From last SCLK rising edge to NCS
rising edge, for valid MOSI data transfer
From NCS rising edge to MISO high-Z
state
C
L
= 100pF
C
L
= 100pF
Forced Rest enable
Wake from Forced Rest
MISO rise time
MISO fall time
MISO delay after SCLK
MISO hold time
MOSI hold time
MOSI setup time
SPI time between write
commands
SPI time between write
and read commands
SPI time between read
and subsequent
commands
SPI read address-data
delay
NCS inactive after
motion burst
NCS to SCLK active
SCLK to NCS inactive
(for read operation)
SCLK to NCS inactive
(for write operation)
NCS to MISO high-Z
MOTION rise time
MOTION fall time
SHTDWN pulse width
t
REST-EN
t
REST-DIS
t
r-MISO
t
f-MISO
t
DLY-MISO
t
HOLD-MISO
t
HOLD-MOSI
t
SETUP-MOSI
t
SWW
t
SWR
t
SRW
t
SRR
t
SRAD
t
BEXIT
t
NCS-SCLK
t
SCLK-NCS
t
SCLK-NCS
t
NCS-MISO
t
r-MOTION
t
F
-MOTION
t
P-STDWN
1
150
150
0.5
200
120
30
20
500
150
150
1
1
300
300
120
1/f
SCLK
s
s
ns
ns
ns
µs
ns
ns
µs
µs
ns
4
500
120
120
20
500
300
300
45
µs
ns
ns
ns
us
ns
ns
ns
s
mA
Transient Supply Current I
DDT
Max supply current during a V
DD
ramp
from 0 to 2.6V
8
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