MPR121QR2 Freescale Semiconductor, MPR121QR2 Datasheet - Page 9

• Manufacturer Part Number: MPR121QR2
• Description: IC CTLR TOUCH SENSOR 20-QFN
• Manufacturer: Freescale Semiconductor
• Type: Capacitive, Proximity Sensorr

Specifications of MPR121QR2

• Number Of Inputs/keys: 12 Key
• Data Interface: I²C, Serial
• Voltage - Supply: 1.71 V ~ 3.6 V
• Current - Supply: 29µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-UQFN, 20-µQFN
• Output Type: Logic
• Interface: I²C
• Input Type: Logic
• Supply Voltage: 2.5 V to 3.6 V
• Dimensions: 3 mm L x 3 mm W x 0.65 mm H
• Temperature Range: - 40 C to + 85 C
• Termination Style: SMD/SMT
• Supply Current: 29µA
• Ic Interface Type: I2C
• Supply Voltage Range: 1.71V To 3.6V
• Sensor Case Style: QFN
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +85°C
• Interface Type: I2C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MPR121QR2; MPR121QR2TR

Table 4. DC Characteristics
(Typical Operating Circuit,
Table 5. AC CHARACTERISTICS
(Typical Operating Circuit,
Sensors
Freescale Semiconductor
DC CHARACTERISTICS
This section includes information about power supply requirements and I/O pin characteristics.
AC CHARACTERISTICS
High Supply Voltage
Low Supply Voltage
Average Supply Current
Average Supply Current
Average Supply Current
Average Supply Current
Average Supply Current
Average Supply Current
Average Supply Current
Average Supply Current
Measurement Supply Current
Idle Supply Current
Input Leakage Current ELE_
Input Capacitance ELE_
Input High Voltage SDA, SCL
Input Low Voltage SDA, SCL
Input Leakage Current
SDA, SCL
Input Capacitance
SDA, SCL
Output Low Voltage
SDA, IRQ
Output High Voltage
ELE4 - ELE11 (GPIO mode)
Output Low Voltage
ELE4 - ELE11 (GPIO mode)
Power On Reset
8 MHz Internal Oscillator
1 kHz Internal Oscillator
Parameter
Parameter
V
V
DD
DD
and V
and V
V
V
Symbol
REG
REG
I
I
OHGPIO
V
OLGPIO
V
V
IH
IH
V
V
I
I
I
I
I
I
I
I
I
I
V
V
REG
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
TLH
THL
DD
, I
, I
OL
IH
IL
= 1.8 V, T
IL
IL
= 1.8 V, T
Symbol
f
f
H
L
V
V
V
Run1 Mode @ 128 ms sample period
Run1 Mode @ 16 ms sample period
Run1 Mode @ 32 ms sample period
Run1 Mode @ 64 ms sample period
DD
A
Run1 Mode @ 1 ms sample period
Run1 Mode @ 2 ms sample period
Run1 Mode @ 4 ms sample period
Run1 Mode @ 8 ms sample period
DD
DD
A
Peak of measurement duty cycle
= 25°C, unless otherwise noted.)
= 25°C, unless otherwise noted.)
= 2.7 V to 3.6 V: I
= 2.3 V to 2.7 V: I
= 1.8 V to 2.3 V: I
I
OLGPIOD
Conditions
Stop Mode
V
I
V
OL
DD
DD
= 6mA
Conditions
falling
rising
= 1 mA
OHGPIO
OHGPIO
OHGPIO
= -10 mA
= -6 mA
= -3 mA
0.7 x V
V
DD
7.44
0.65
1.71
1.08
0.88
Min
Min
2.0
- 0.5
DD
0.025
0.025
1.35
1.15
Typ
Typ
393
199
102
3.3
1.8
54
29
17
11
8
1
8
1
3
0.3 x V
Max
8.56
1.35
0.5V
Max
2.75
1.62
1.42
3.6
0.5
15
1
7
DD
MPR121
Units
Units
MHz
kHz
mA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
pF
μA
pF
V
V
V
V
V
V
V
V
V
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