參數(shù)資料
型號(hào)： MCF52221
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： Microcontroller Data Sheet
中文描述： 微控制器數(shù)據(jù)表
文件頁數(shù)： 29/56頁
文件大?。?/td> 811K
代理商： MCF52221
Preliminary Electrical Characteristics
MCF52223 ColdFire Microcontroller Data Sheet, Rev. 1
Preliminary
Freescale Semiconductor
29
2.1
Maximum Ratings
Table 19. Absolute Maximum Ratings
1,
2
NOTES:
1
Functional operating conditions are given in DC Electrical Specifications. Absolute Maximum
Ratings are stress ratings only, and functional operation at the maxima is not guaranteed. Stress
beyond those listed 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 (e.g., either V
SS
or V
DD
).
3
Input must be current limited to the I
DD
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 V
DD
.
5
Power supply must maintain regulation within operating V
DD
range during instantaneous and
operating maximum current conditions. If positive injection current (V
in
> V
DD
) is greater than I
DD
,
the injection current may flow out of V
DD
and could result in external power supply going out of
regulation. Insure external V
DD
load will shunt current greater than maximum injection current. This
will be the greatest risk when the MCU is not consuming power (ex; no clock).Power supply must
maintain regulation within operating V
DD
range during instantaneous and operating maximum
current conditions.
Rating
Symbol
Value
Unit
Supply Voltage
V
DD
V
DDPLL
V
STBY
V
IN
V
EXTAL
V
XTAL
– 0.3 to +4.0
V
Clock Synthesizer Supply Voltage
– 0.3 to +4.0
V
RAM Memory Standby Supply Voltage
Digital Input Voltage
3
– 0.3 to + 4.0
V
– 0.3 to + 4.0
V
EXTAL pin voltage
0 to 3.3
V
XTAL pin voltage
0 to 3.3
V
Instantaneous Maximum Current
Single pin limit (applies to all pins)
4, 5
I
DD
25
mA
Operating Temperature Range (Packaged)
T
A
(T
L
- T
H
)
T
stg
– 40 to 85
°
C
Storage Temperature Range
– 65 to 150
°
C
相關(guān)PDF資料
PDF描述
MCF52223 ColdFire Microcontroller
MCF52235 ColdFire Microcontroller
MCF5232CAB80 Integrated Microprocessor Hardware Specification
MCF5232 Integrated Microprocessor Hardware Specification
MCF5249 CodeWarrior Development Studio for ColdFire㈢ Architectures
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