MPC8610EC datasheet(41/96 Pages) FREESCALE

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Electrical Characteristics

MPC8610 Integrated Host Processor Hardware Specifications, Rev. 0

Freescale Semiconductor

2.9.2

I2C AC Electrical Specifications

Table 31 provides the AC timing parameters for the I

2C interfaces.

Input current each I/O pin (input voltage is between

0.1

× OVDD and 0.9 × OVDD(max)

–10

μA3

Capacitance for each I/O pin

—10

Notes:

1. Output voltage (open drain or open collector) condition = 3 mA sink current.

2. Refer to the

MPC8610 Integrated Host Processor Reference Manual, for information on the digital filter used.

3. I/O pins will obstruct the SDA and SCL lines if OVDD is switched off.

Table 31. I2C AC Electrical Specifications

All values refer to VIH (min) and VIL (max) levels (see Table 30).

Parameter

Symbol1

Min

Max

Unit

SCL clock frequency

fI2C

0400

kHz

Low period of the SCL clock

tI2CL

1.3

—

μs

High period of the SCL clock

tI2CH

0.6

—

μs

Setup time for a repeated START condition

tI2SVKH

0.6

—

μs

Hold time (repeated) START condition (after this period, the first

clock pulse is generated)

tI2SXKL

0.6

—

μs

Data setup time

tI2DVKH

100

—

Data input hold time:

CBUS compatible masters

I2C bus devices

tI2DXKL

—

μs

Data ouput delay time

tI2OVKL

—0.9 3

μs

Rise time of both SDA and SCL signals

tI2CR

20 + 0.1 CB

300

Fall time of both SDA and SCL signals

tI2CF

20 + 0.1 Cb

300

Set-up time for STOP condition

tI2PVKH

0.6

—

μs

Bus free time between a STOP and START condition

tI2KHDX

1.3

—

μs

Noise margin at the LOW level for each connected device (including

hysteresis)

VNL

0.1

× OVDD

—V

Table 30. I2C DC Electrical Characteristics (continued)

At recommended operating conditions with OVDD of 3.3 V ± 5%.

Parameter

Symbol

Min

Max

Unit

Notes

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