MPC8241EC datasheet(25/58 Pages) FREESCALE

25 / 58 page

MPC8241 Integrated Processor Hardware Specifications, Rev. 10

Freescale Semiconductor

Electrical and Thermal Characteristics

Figure 15. PCI_HOLD_DEL Effect on Output Valid and Hold Time

4.6

I2C

This section describes the DC and AC electrical characteristics for the I2C interfaces of the MPC8241.

4.6.1

I2C DC Electrical Characteristics

Table 12 provides the DC electrical characteristics for the I2C interfaces.

Table 12. I2C DC Electrical Characteristics

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

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

00.2

× OVDD

PCI_SYNC_IN

PCI Inputs/Outputs

33 MHz PCI

12a2, 7.0 ns for 33 MHz PCI

PCI_HOLD_DEL = 10

12a0, 6.0 ns for 66 MHz PCI

PCI_HOLD_DEL = 00

13a2, 2.1 ns for 33 MHz PCI

PCI_HOLD_DEL = 10

13a0, 1 ns for 66 MHz PCI

PCI_HOLD_DEL = 00

Output Valid

Output Hold

Note: Diagram not to scale.

As PCI_HOLD_DEL

Values Decrease

PCI Inputs

and Outputs

PCI Inputs/Outputs

66 MHz PCI

PCI_HOLD_DEL = 00

As PCI_HOLD_DEL

Values Increase

OVDD/2

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