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General
MFR4200 Data Sheet, Rev. 0
Freescale Semiconductor
221
A.1.4
Current Injection
Power supply must maintain regulation within operating V
DD5
or V
DD
range during instantaneous and
operating maximum current conditions. If positive injection current (V
in
> V
DD5
) is greater than I
DD5
, the
injection current may flow out of VDD5 and could result in external power supply going out of regulation.
Ensure external V
DD5
load will shunt current greater than maximum injection current. This will be the
greatest risk when the CC is not consuming power; e.g. if no system clock is present, or if clock rate is very
low which would reduce overall power consumption.
A.1.5
Absolute Maximum Ratings
Absolute maximum ratings are stress ratings only. A functional operation under or outside those maxima
is not guaranteed. Stress beyond those limits may affect the reliability or cause permanent damage of the
device.
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
SS5
or V
DD5
).
Table A-1. Absolute Maximum Ratings
1
1
Beyond absolute maximum ratings device might be damaged.
2
The device contains an internal voltage regulator to generate the logic and OSC supply out of the I/O supply. The
absolute maximum ratings apply when the device is powered from an external source.
3
All digital I/O pins are internally clamped to V
SSX
and V
DDX
, V
SSR
and V
DDR
or V
SSA
and V
DDA
.
4
Those pins are internally clamped to V
SSOSC
and V
DDOSC
.
Num
Rating
Symbol
Min
Max
Unit
1
I/O, Regulator and Analog Supply Voltage
V
DD5
-0.3
6.5
V
2
Digital Logic Supply Voltage
2
V
DD
-0.3
3.0
V
3
Oscillator Supply Voltage
2
V
DDOSC
-0.3
3.0
V
4
Voltage difference VDDX to VDDR and VDDA
VDDX
-0.3
0.3
V
5
Voltage difference VSSX to VSSR and VSSA
VSSX
-0.3
0.3
V
6
Digital I/O Input Voltage
V
IN
-0.3
6.5
V
7
EXTAL, XTAL inputs
V
ILV
-0.3
3.0
V
8
Instantaneous Maximum Current
Single pin limit for all digital I/O pins
3
I
D
-25
+25
mA
9
Instantaneous Maximum Current
Single pin limit for EXTAL, XTAL
4
I
DL
-25
+25
mA
10
Operating Temperature Range (packaged)
T
A
-40
+125
o
C
11
Operating Temperature Range (junction)
T
J
-40
+150
o
C
12
Storage Temperature Range
T
stg
– 65
155
°
C