MPC8270 MOTOROLA [Motorola, Inc], MPC8270 Datasheet - Page 8

• Manufacturer Part Number: MPC8270
• Description: PowerQUICC II Family Hardware Specifications
• Manufacturer: MOTOROLA [Motorola, Inc]

This device contains circuitry protecting against damage due to high static voltage or electrical fields;
however, it is advised that normal precautions be taken to avoid application of any voltages higher than
maximum-rated voltages to this high-impedance circuit. Reliability of operation is enhanced if unused
inputs are tied to an appropriate logic voltage level (either GND or V
Figure 2 shows the undershoot and overshoot voltage of the 60x and local bus memory interface of the
MPC8280. Note that in PCI mode the I/O interface is different.
3
Table 5 shows DC electrical characteristics.
8
Input high voltage—
all inputs except TRST and PORESET
Input low voltage
CLKIN input high voltage
CLKIN input low voltage
Input leakage current, V
2
Note that for extended temperature parts the range is (-40)
DC Electrical Characteristics
After power up sequence is complete, VDDH and VDD/VCCSYN must
track each other and both voltages must vary in the same direction. When
varying in the positive direction, VDDH may vary up to 5% from nominal
or 3.3 + 0.165 = 3.465 V, in which case VDD/VCCSYN must also vary
upward by 5% from nominal or 1.525 + 0.075 = 1.6 V. The same applies
to the negative direction: VDDH may vary downward up to -5% from
nominal or 3.3 –0.165 = 3.135 V, in which case VDD/VCCSYN must vary
downward by-5% from nominal or 1.525 –0.075 = 1.45 V. A/C timing
specification violation may occur during the time that voltage tracking is
not correct.
V
V
IH
IL
Characteristic
MPC8280 PowerQUICC II™ Family Hardware Specifications
IN
GND – 0.3 V
GND – 1.0 V
= VDDH
GV
DD
NOTE: Core, PLL, and I/O Supply Voltages
GV
+ 5%
GND
Figure 2. Overshoot/Undershoot Voltage
3
Table 5. DC Electrical Characteristics
4 V
DD
2
Not to exceed 10%
of t
SDRAM_CLK
T A
Symbol
– 105
V
V
V
V
I
IHC
ILC
IN
IH
IL
T j
.
CC
).
1
GND
GND
Min
2.0
2.4
—
3.465
3.465
Max
0.8
0.4
10
MOTOROLA
Unit
µA
V
V
V
V