Datasheet

MPC8245 Integrated Processor Hardware Specifications, Rev. 10
Freescale Semiconductor 25
Electrical and Thermal Characteristics
Figure 15 provides the PCI_HOLD_DEL effect on output valid and hold times.
Figure 15. PCI_HOLD_DEL Effect on Output Valid and Hold Times
4.6 I
2
C
This section describes the DC and AC electrical characteristics for the I
2
C interfaces of the MPC8245.
4.6.1 I
2
C DC Electrical Characteristics
Table 12 provides the DC electrical characteristics for the I
2
C interfaces.
Table 12. I
2
C DC Electrical Characteristics
At recommended operating conditions with OV
DD
of 3.3 V ± 5%.
Parameter Symbol Min Max Unit Notes
Input high voltage level V
IH
0.7 × OV
DD
OV
DD
+0.3 V
Input low voltage level V
IL
–0.3 0.3 × OV
DD
V
Low-level output voltage V
OL
00.2 × OV
DD
V1
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
OV
DD
/2 OV
DD
/2