参数资料
型号: KITMPR121EVM
厂商: Freescale Semiconductor
文件页数: 27/27页
文件大小: 0K
描述: KIT EVALUATION MPR121
产品培训模块: MPR121: Low-Power Touch Sensor
标准包装: 1
传感器类型: 近程
接口: USB
电源电压: 5V,USB
嵌入式:
已供物品: 4 个板,线缆,文档
已用 IC / 零件: MPR121
产品目录页面: 2808 (CN2011-ZH PDF)
MPR121
Sensors
Freescale Semiconductor, Inc.
9
4.3
DC Characteristics
This section includes information about power supply requirements and I/O pin characteristics.
4.4
AC Characteristics
Table 5. DC Characteristics
(Typical Operating Circuit,
VDD and VREG = 1.8V, 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(1)
1.: ECR set to 0x2C and all 12 channels plus one proximity channel activated. Measurement current CDC is set at maximum of 0x3F.
IDD
Run Mode @ 1 ms sample period
393
μA
Run Mode @ 2 ms sample period
199
μA
Run Mode @ 4 ms sample period
102
μA
Run Mode @ 8 ms sample period
54
μA
Run Mode @ 16 ms sample period
29
μA
Run Mode @ 32 ms sample period
17
μA
Run Mode @ 64 ms sample period
11
μA
Run 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 Self-Capacitance on 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 = 2.7V to 3.6V: IOHGPIO = -10 mA
VDD = 2.3V to 2.7V: IOHGPIO = -6 mA
VDD = 1.8V to 2.3V: 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 6. AC Characteristics
(Typical Operating Circuit,
VDD and VREG = 1.8V, 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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