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MPR121 数据表(PDF) 9 Page - Freescale Semiconductor, Inc

部件名 MPR121
功能描述  Proximity Capactive touch Senosr controller
PDF  57 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

MPR121 数据表(HTML) 9 Page - Freescale Semiconductor, Inc

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MPR121
Sensors
Freescale Semiconductor
9
DC CHARACTERISTICS
This section includes information about power supply requirements and I/O pin characteristics.
AC CHARACTERISTICS
Table 4. DC Characteristics
(Typical Operating Circuit,
VDD and VREG = 1.8 V, TA = 25°C, unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
High Supply Voltage
VDD
2.0
3.3
3.6
V
Low Supply Voltage
VREG
1.71
1.8
2.75
V
Average Supply Current
IDD
Run1 Mode @ 1 ms sample period
393
μA
Average Supply Current
IDD
Run1 Mode @ 2 ms sample period
199
μA
Average Supply Current
IDD
Run1 Mode @ 4 ms sample period
102
μA
Average Supply Current
IDD
Run1 Mode @ 8 ms sample period
54
μA
Average Supply Current
IDD
Run1 Mode @ 16 ms sample period
29
μA
Average Supply Current
IDD
Run1 Mode @ 32 ms sample period
17
μA
Average Supply Current
IDD
Run1 Mode @ 64 ms sample period
11
μA
Average Supply Current
IDD
Run1 Mode @ 128 ms sample period
8
μA
Measurement Supply Current
IDD
Peak of measurement duty cycle
1
mA
Idle Supply Current
IDD
Stop Mode
3
μA
Input Leakage Current ELE_
IIH, IIL
0.025
μA
Input Capacitance ELE_
15
pF
Input High Voltage SDA, SCL
VIH
0.7 x VDD
V
Input Low Voltage SDA, SCL
VIL
0.3 x VDD
V
Input Leakage Current
SDA, SCL
IIH, IIL
0.025
1
μA
Input Capacitance
SDA, SCL
7pF
Output Low Voltage
SDA, IRQ
VOL
IOL = 6mA
0.5V
V
Output High Voltage
ELE4 - ELE11 (GPIO mode)
VOHGPIO
VDD = 2.7 V to 3.6 V: IOHGPIO = -10 mA
VDD = 2.3 V to 2.7 V: IOHGPIO = -6 mA
VDD = 1.8 V to 2.3 V: IOHGPIO = -3 mA
VDD - 0.5
V
Output Low Voltage
ELE4 - ELE11 (GPIO mode)
VOLGPIO
IOLGPIOD = 1 mA
0.5
V
Power On Reset
VTLH
VDD rising
1.08
1.35
1.62
V
VTHL
VDD falling
0.88
1.15
1.42
V
Table 5. AC CHARACTERISTICS
(Typical Operating Circuit, VDD and VREG = 1.8 V, TA = 25°C, unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
8 MHz Internal Oscillator
fH
7.44
8
8.56
MHz
1 kHz Internal Oscillator
fL
0.65
1
1.35
kHz



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