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參數(shù)資料
| 型號(hào)： | MPC8247 |
| 廠商： | Motorola, Inc. |
| 英文描述： | MPC8272 PowerQUICC II Family Hardware Specifications |
| 中文描述： | MPC8272的PowerQUICC II系列硬件規(guī)格 |
| 文件頁數(shù)： | 7/56頁 |
| 文件大?。?/td> | 1090K |
| 代理商： | MPC8247 |
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MOTOROLA
MPC8272 PowerQUICC II Family Hardware Specifications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
For More Information On This Product,
Go to: www.freescale.com
7
Operating Conditions
2
Table 3 shows the maximum electrical ratings.
Operating Conditions
Table 4 lists recommended operational voltage conditions.
NOTE: Core, PLL, and I/O Supply Voltages
VDDH, VCCSYN, and VDD must track each other and must vary in the
same direction—either in the positive direction (+0.165 VDDH and
+0.075 VDD) or in the negative direction (–0.165 VDDH and
–0.075 VDD).
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
CC
).
Table 3. Absolute Maximum Ratings
1
1
Absolute maximum ratings are stress ratings only; functional operation (see Table 4) at the maximums is not
guaranteed. Stress beyond those listed may affect device reliability or cause permanent damage.
Caution:
VDD/VCCSYN must not exceed VDDH by more than 0.4 V at any time, including during power-on reset.
Caution:
VDDH can exceed VDD/VCCSYN by 3.3 V during power on reset by no more than 100 mSec. VDDH should
not exceed VDD/VCCSYN by more than 2.5 V during normal operation.
Caution:
VIN must not exceed VDDH by more than 2.5 V at any time, including during power-on reset.
Rating
Symbol
Value
Unit
Core supply voltage
2
2
VDD
–0.3 – 2.25
V
PLL supply voltage
2
VCCSYN
–0.3 – 2.25
V
I/O supply voltage
3
3
VDDH
–0.3 – 4.0
V
Input voltage
4
4
VIN
GND(–0.3) – 3.6
V
Junction temperature
T
j
120
C
Storage temperature range
T
STG
(–55) – (+150)
C
Table 4. Recommended Operating Conditions
1
1
Caution:
is not guaranteed.
Note that for extended temperature parts the range is (-40)
These are the recommended and tested operating conditions. Proper operation outside of these conditions
Rating
Symbol
Value
Unit
Core supply voltage
VDD
1.45 – 1.60
V
PLL supply voltage
VCCSYN
1.45 – 1.60
V
I/O supply voltage
VDDH
3.135 – 3.465
V
Input voltage
VIN
GND (-0.3) – 3.465
V
Junction temperature (maximum)
T
j
105
2
2
TA
– 105
Tj
.
C
Ambient temperature
T
A
0–70
2
C
F
Freescale Semiconductor, Inc.
n
.
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