MPC8358E datasheet(49/96 Pages) FREESCALE

49 / 96 page

MPC8358E PowerQUICC™ II Pro Processor Revision 2.1 PBGA Silicon Hardware Specifications, Rev. 1

Freescale Semiconductor

11.1

I2C DC Electrical Characteristics

Table 43 provides the DC electrical characteristics for the I2C interface of the device.

11.2

I2C AC Electrical Specifications

Table 44 provides the AC timing parameters for the I2C interface of the device.

Table 43. I2C DC Electrical Characteristics

At recommended operating conditions with OVDD of 3.3 V ± 10%.

Parameter

Symbol

Min

Max

Unit

Notes

Input high voltage level

VIH

0.7

× OVDD

OVDD + 0.3

Input low voltage level

VIL

–0.3

0.3

× OVDD

Low level output voltage

VOL

00.4

Output fall time from VIH(min) to VIL(max) with a

bus capacitance from 10 to 400 pF

tI2KLKV

20 + 0.1

× CB

250

Pulse width of spikes which must be suppressed

by the input filter

tI2KHKL

050

Capacitance for each I/O pin

—10

Input current

(0 V

≤VIN ≤ OVDD)

IIN

—±10

μA4

Notes:

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

2. CB = capacitance of one bus line in pF.

3. Refer to the

MPC8360E Integrated Communications Processor Reference Manual, Rev. 2 for information on the

digital filter used.

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

Table 44. I2C AC Electrical Specifications

All values refer to VIH (min) and VIL (max) levels (see Table 43).

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

—

νσ

Data hold time:

CBUS compatible masters

I2C bus devices

tI2DXKL

—

0 2

—

0.9 3

μs

Rise time of both SDA and SCL signals

tI2CR

20 + 0.1 Cb

300

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