MPR121QR2 Freescale Semiconductor, MPR121QR2 Datasheet - Page 2

• 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

MPR121
2
PIN DESCRIPTION
Pin No.
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Pin Name
(LED0)
(LED1)
(LED2)
(LED3)
(LED4)
(LED5)
(LED6)
(LED7)
ELE10
ELE11
ADDR
VREG
REXT
ELE0
ELE1
ELE2
ELE3
ELE4
ELE5
ELE6
ELE7
ELE8
ELE9
VDD
SCL
SDA
VSS
IRQ
Pin Description
Open Collector Interrupt pin
I
I
I
VREG – 0.1 μF cap connect
Ground
External Resistor – 75 kΩ
Electrode 0
Electrode 1
Electrode 2
Electrode 3
Electrode 4
Electrode 5
Electrode 6
Electrode 7
Electrode 8
Electrode 9
Electrode 10
Electrode 11
VDD
2
2
2
C Clock
C Data
C Address Select
Description
Freescale Semiconductor
Sensors