MPR121QR2 Freescale Semiconductor, MPR121QR2 Datasheet - Page 10

• 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 6. I
(Typical Operating Circuit,
MPR121
10
I
Serial Clock Frequency
Bus Free Time Between a STOP and a START Condition
Hold Time, (Repeated) START Condition
Repeated START Condition Setup Time
STOP Condition Setup Time
Data Hold Time
Data Setup Time
SCL Clock Low Period
SCL Clock High Period
Rise Time of Both SDA and SCL Signals, Receiving
Fall Time of Both SDA and SCL Signals, Receiving
Fall Time of SDA Transmitting
Pulse Width of Spike Suppressed
Capacitive Load for Each Bus Line
2
C AC CHARACTERISTICS
2
C AC Characteristics
Parameter
V
DD
and V
REG
= 1.8 V, T
A
= 25°C, unless otherwise noted.)
Symbol
t
t
t
t
t
SU, STO
HD, DAT
HD, STA
SU, STA
SU, DAT
t
t
t
f
t
HIGH
LOW
F.TX
SCL
BUF
t
C
t
t
SP
R
F
b
Conditions
Min
100
1.3
0.6
0.6
0.6
1.3
0.7
20+0.1C
20+0.1C
20+0.1C
Freescale Semiconductor
Typ
25
b
b
b
Max
400
300
300
250
400
0.9
Sensors
Units
kHz
pF
μs
μs
μs
μs
μs
ns
μs
μs
ns
ns
ns
ns