MPR084 datasheet(28/39 Pages) FREESCALE

28 / 39 page

MPR084

Sensors

Freescale Semiconductor

Preliminary

A.4

DC Characteristics

This section includes information about power supply requirements and I/O pin characteristics.

*The MPR084 requires a specific start-up sequence for VDD< 2.0 V. Refer to Section 2.3.9.

A.5

I2C AC Characteristics

This section includes information about I2C AC Characteristics.

Table 22. DC Characteristics (Temperature Range = –40°C to 85°C Ambient)

(Typical Operating Circuit,

VDD = 1.8 V* to 3.6 V, TA = TMIN to TMAX, unless otherwise noted. Typical current values are at VDD = 3.3 V,

TA = +25°C.)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Operating Supply Voltage

VDD

1.8*

3.6

Run1 mode Current

Irun1

VDD = 1.8 V

1.62

Run2 mode Current

Irun2

VDD = 1.8 V

µA

Stop1 mode Current

Istop1

VDD = 1.8 V

1.74

Stop2 mode Current

Istop2

VDD = 1.8 V

µA

Input High Voltage

SDA, SCL

VIH

0.7 x VDD

Input Low Voltage

SDA, SCL

VIL

0.35 x VDD

Input Leakage Current

SDA, SCL

IIH, IIL

0.025

µA

Input Capacitance

SDA, SCL

7pF

Output Low Voltage

SDA, IRQ

VOL

IOL = 6mA

0.5V

Table 23. I2C AC Characteristics

(Typical Operating Circuit, V+ = 1.8 V to 3.6 V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3 V, TA = +25°C.)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Serial Clock Frequency (1)

1. Clock Stretching is required for reliable communications

fSCL

100

kHz

Capacitive Load for Each Bus Line

400

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