MMA26XXKW FREESCALE [Freescale Semiconductor, Inc], MMA26XXKW Datasheet - Page 9

• Manufacturer Part Number: MMA26XXKW
• Description: DSI Inertial Sensor
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

100
101
102
103
104
105
106
107
108
109
110 DSI Data Latency
111
112
113
114
115
116
117
118
119
#
87
88
89
90
91
92
93
94
95
96
97 Initialization to Bus Switch Closing
98
99 Communication Data Rate
2.7
Sensors
Freescale Semiconductor, Inc.
V
Reset Recovery (See
HCAP Under-Voltage Reset Delay (See
V
V
V
V
V
V
BUSOUT Discharge Resistance
Loss of Signal Reset Time
BUSIN Response Current Slew Rate
BUSIN Timing to Response Current
DSI BUSIN Signal Duty Cycle
Inter-frame Separation Time (See
Bus Switch Open Time
OTP Program Timing
Self-Test Response Time
Error Detection Response Time
HCAP
REG
REG
REGA
REGA
REG
L
POR negated to 1st DSI Command (Initialization Command)
POR negated to Acceleration Data Valid (Including LPF Init)
DSI Clear Command to 1st DSI Command (Initialization Command)
DSI Clear Command to Acceleration Data Valid (Including LPF Init)
POR to first Capacitor Test Disconnect
Disconnect Time ()
Disconnect Rate ()
Activation Time
Maximum time below frame threshold
1.0 mA to 9.0 mA, 9.0 to 1.0 mA
BUSIN Negative Voltage Transition =3.0V to I
BUSIN Negative Voltage Transition =3.0V to I
Logic ‘0’
Logic ‘1’
Following Read Write NVM Command
Following Initialization, BS = 1
Following Initialization, BS = 0
Following other DSI bus commands
Reset Asserted to I
Time to program one OTP bit
Self-Test Activation time (EOF
Self-Test Deactivation time (EOF
Self-Test Activation time (EOF
Self-Test Deactivation time (EOF
Self-Test Activation time (EOF
Self-Test Deactivation time (EOF
Mirror Register CRC Error to Status Flag (S) set (Factory or User Array)
, V
Under-Voltage Reset Delay (See
< V
(V
< V
Under-Voltage Reset Delay (See
< V
Dynamic Electrical Characteristics - DSI
REGA
CC
PORVREG_f
PORHCAP_f
PORVREGA_f
- V
Capacitor Monitor
SS
)
to POR assertion
to POR assertion
Figure
to POR assertion
SW_LEAK
V
H
, T
20)
Characteristic
L
Figure
20 A
Slave
Slave
Slave
T
A
Slave
Slave
Slave
Figure
to 90% DFLCT_xxx, 180 Hz LPF)
to 90% DFLCT_xxx, 400 Hz LPF)
to 90% DFLCT_xxx, 800 Hz LPF)
Figure
Figure
8)
T
to 10% DFLCT_xxx, 180 Hz LPF)
to 10% DFLCT_xxx, 400 Hz LPF)
to 10% DFLCT_xxx, 800 Hz LPF)
H
, T
6)
5)
7)
RSP
RSP
25 K/min, unless otherwise specified.
= 7.0 mA rise
= 5.0 mA fall
*
*
t
BUSOUT_Discharge
t
t
t
t
t
t
CAPTEST_RATE
CAPTEST_TIME
POR_CAPTEST
ST_DEACT_180
ST_DEACT_400
ST_DEACT_800
t
t
t
t
t
t
VREGA_POR
ST_ACT_180
ST_ACT_400
ST_ACT_800
t
Symbol
VREG_POR
HCAP_POR
t
t
PROG_BIT
t
t
t
t
t
DSP_INIT
DSP_INIT
DSI_INIT
DSI_INIT
t
LAT_DSI
BSOPEN
CRC_Err
D
t
RSP_R
RSP_F
D
D
t
t
t
t
t
RATE
t
t
ITR
TO
IFS
IFS
IFS
IFS
BS
CH
CL
4 / f
Min
2.00
0.33
2.00
2.00
1.00
1.00
0.50
0.50
100
200
9.5
89
10
60
20
20
64
2
OSC
12000 / f
400 / f
400 / f
880 / f
256 / f
75 / f
6 / f
Typ
10
33
67
OSC
OSC
OSC
OSC
OSC
OSC
OSC
10000 / f
10000 / f
5 / f
Max
10.5
4.00
10.0
2.50
2.50
5.00
5.00
2.50
2.50
1.75
1.75
138
200
500
256
40
90
5
5
OSC
MMA26xxKW
OSC
OSC
Units
mA/ s
kbps
ms
ms
ms
ms
ms
ms
ms
ms
%
%
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
9
(7)
(7)
(7)
(7)
(7)
(3)
(3)
(7)
(7)
(7)
(7)
(3)
(7)
(7)
(3)
(7)
(7)
(7)
(7)
(7)
(7)
(7)
(7)
(7)
(3)
(7)
(7)
(7)
(7)
(7)
(7)
(7)
(7)