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MPR032 数据表(PDF) 26 Page - Freescale Semiconductor, Inc

部件名 MPR032
功能描述  Proximity Capacitive Touch Sensor Controller
PDF  32 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

MPR032 数据表(HTML) 26 Page - Freescale Semiconductor, Inc

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MPR03X
Sensors
26
Freescale Semiconductor
A.6
I2C AC Characteristics
This section includes information about I2C AC Characteristics.
Table 23. I2C AC Characteristics
(Typical Operating Circuit,
VDD = 1.71 V to 2.75 V, TA = TMIN to TMAX, unless otherwise noted. Typical current values are at
VDD = 1.8 V, TA = +25°C.)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Serial Clock Frequency
fSCL
400
kHz
1
Bus Free Time Between a STOP and a START
Condition
tBUF
1.3
µs
2
Hold Time, (Repeated) START Condition
tHD, STA
0.6
µs
2
Repeated START Condition Setup Time
tSU, STA
0.6
µs
2
STOP Condition Setup Time
tSU, STO
0.6
µs
2
Data Hold Time
tHD, DAT
0.9
µs
2
Data Setup Time
tSU, DAT
100
ns
2
SCL Clock Low Period
tLOW
1.3
µs
2
SCL Clock High Period
tHIGH
0.7
µs
2
Rise Time of Both SDA and SCL Signals,
Receiving
tR
20+0.1
Cb
300
ns
2
Fall Time of Both SDA and SCL Signals,
Receiving
tF
20+0.1
Cb
300
ns
2
Fall Time of SDA Transmitting
tF.TX
20+0.1
Cb
250
ns
2
Pulse Width of Spike Suppressed
tSP
25
ns
2
Capacitive Load for Each Bus Line
Cb
400
pF
2



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