Datasheet
MCF5227x ColdFire
®
Microprocessor Data Sheet, Rev. 8
Electrical Characteristics
Freescale Semiconductor16
NOTE
The parameters specified in this MCU document supersede any values found in the module
specifications.
5.1 Maximum Ratings
Table 7. Absolute Maximum Ratings
1,
2
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 (e.g., either V
SS
or EV
DD
).
Characteristic 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
Oscillator Supply Voltage OSCV
DD
–0.3 to +4.0 V
PLL Supply Voltage PLLV
DD
–0.3 to +2.0 V
RTC Supply Voltage RTCV
DD
–0.5 to +2.0 V
Digital Input Voltage
3
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.
V
IN
–0.3 to +3.6 V
Instantaneous Maximum Current
Single pin limit (applies to all pins)
3, 4, 5
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. Insure external EV
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 EV
DD
range during instantaneous and operating
maximum current conditions.
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