MPC8313ECVRGDDA datasheet(54/100 Pages) FREESCALE

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MPC8313E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 2.1

Freescale Semiconductor

13 I2C

This section describes the DC and AC electrical characteristics for the I2C interface.

13.1

I2C DC Electrical Characteristics

Table 49 provides the DC electrical characteristics for the I2C interface.

13.2

I2C AC Electrical Specifications

Table 50 provides the AC timing parameters for the I2C interface.

Table 49. I2C DC Electrical Characteristics

At recommended operating conditions with NVDD of 3.3 V ± 0.3 V.

Parameter

Symbol

Min

Max

Unit

Notes

Input high voltage level

VIH

0.7

× NVDD

NVDD + 0.3

Input low voltage level

VIL

–0.3

0.3

× NVDD

Low level output voltage

VOL

00.2

× NVDD

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 ≤ NVDD)IIN

—± 5

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

MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, for information on the digital

filter used.

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

Table 50. I2C AC Electrical Specifications

All values refer to VIH (min) and VIL (max) levels (see Table 49).

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

—

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