參數(shù)資料
型號(hào)： MCF5208_07
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： Microprocessor Data Sheet
中文描述： 微處理器數(shù)據(jù)表
文件頁(yè)數(shù)： 18/46頁(yè)
文件大?。?/td> 480K
代理商： MCF5208_07
MCF5208 ColdFire
Microprocessor Data Sheet, Rev. 1
Electrical Characteristics
Freescale Semiconductor
18
5.1
Maximum Ratings
5.2
Thermal Characteristics
Table 5
lists thermal resistance values
Table 4. Absolute Maximum Ratings
1,
2
NOTES:
1
Functional operating conditions are given in
Section 5.4, “DC Electrical Specifications”.
Absolute maximum ratings are stress ratings only, and functional operation at the maxima is
not guaranteed. Continued operation at these levels may affect device reliability or cause
permanent damage to the device.
2
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 (V
SS
or
EV
DD
).
3
Input must be current limited to the value specified. To determine the value of the required
current-limiting resistor, calculate resistance values for positive and negative clamp voltages,
then use the larger of the two values.
4
All functional non-supply pins are internally clamped to V
SS
and EV
DD
.
5
Power supply must maintain regulation within operating EV
DD
range during instantaneous
and operating maximum current conditions. If positive injection current (V
in
> EV
DD
) is greater
than I
DD
, the injection current may flow out of EV
DD
and could result in external power supply
going out of regulation. Ensure external EV
DD
load shunts current greater than maximum
injection current. This is the greatest risk when the MCU is not consuming power (ex; no
clock). Power supply must maintain regulation within operating EV
DD
range during
instantaneous and operating maximum current conditions.
Rating
Symbol
Value
Unit
Core Supply Voltage
IV
DD
– 0.5 to +2.0
V
CMOS Pad Supply Voltage
EV
DD
– 0.3 to +4.0
V
DDR/Memory Pad Supply Voltage
SDV
DD
– 0.3 to +4.0
V
PLL Supply Voltage
PLLV
DD
– 0.3 to +2.0
V
Digital Input Voltage
3
V
IN
– 0.3 to +3.6
V
Instantaneous Maximum Current
Single pin limit (applies to all pins)
3, 4, 5
I
D
25
mA
Operating Temperature Range (Packaged)
T
A
(T
L
- T
H
)
– 40 to 85
°
C
Storage Temperature Range
T
stg
– 55 to 150
°
C
Table 5. Thermal Characteristics
Characteristic
Symbol
196MBGA 144MBGA 160QFP 144LQFP
Unit
Junction to ambient, natural convection
Four layer board
(2s2p)
θ
JMA
47
1,2
47
1,2
49
1,2
65
1,2
°
C / W
Junction to ambient (@200 ft/min)
Four layer board
(2s2p)
θ
JMA
43
1,2
43
1,2
44
1,2
58
1,2
°
C / W
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