MMA7660FCT datasheet(30/35 Pages) FREESCALE

30 / 35 page

Sensors

Freescale Semiconductor, Inc.

MMA7660FC

APPENDIX D - I2C AC CHARACTERISTICS

This section includes information about I2C AC Characteristics.

Table 1. I2C AC Characteristics

(Typical Operating Circuit,

VDD = 1.71 V to 2.75 V, TA = TMIN to TMAX, unless otherwise noted. Typical current values are at

VDD = 1.8 V, TA = +25°C.)

Parameter

Symbol

Min

Typ

Max

Units

Serial Clock Frequency(1)

1. Parameters tested 100% at final test at room temperature; limits at -40°C and +85°C, verified by characterization, not test in production.

fSCL

400

kHz

Bus Free Time Between a STOP and a START Condition(2)

2. Limits verified by characterization, not tested in production.

tBUF

1.3

µs

Hold Time, (Repeated) START Condition(2)

tHD, STA

0.6

µs

Repeated START Condition Setup Time(2)

tSU, STA

0.6

µs

STOP Condition Setup Time(2)

tSU, STO

0.6

µs

Data Hold Time(2)

tHD, DAT

0.9

µs

Data Setup Time(2)

tSU, DAT

100

SCL Clock Low Period(2)

tLOW

1.3

µs

SCL Clock High Period(2)

tHIGH

0.7

µs

Rise Time of Both SDA and SCL Signals, Receiving(2)

20+0.1Cb

300

Fall Time of Both SDA and SCL Signals, Receiving(2)

20+0.1Cb

300

Fall Time of SDA Transmitting(2)

tF.TX

20+0.1Cb

250

Pulse Width of Spike Suppressed(2)

tSP

Capacitive Load for Each Bus Line(2)

400

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