MC9S12A128 MOTOROLA [Motorola, Inc], MC9S12A128 Datasheet - Page 59

• Manufacturer Part Number: MC9S12A128
• Description: Microcontroller unit (MCU)
• Manufacturer: MOTOROLA [Motorola, Inc]

A.1.4 Current Injection
Power supply must maintain regulation within operating V
operating maximum current conditions. If positive injection current (V
injection current may flow out of V
Ensure external V
greatest risk when the MCU 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
NOTES:
1. Beyond absolute maximum ratings device might be damaged.
2. The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply. The absolute
3. All digital I/O pins are internally clamped to V
4. Those pins are internally clamped to V
5. This pin is clamped low to V
Num
10
12
13
11
1
2
3
4
5
6
7
8
9
maximum ratings apply when the device is powered from an external source.
I/O, Regulator and Analog Supply Voltage
Digital Logic Supply Voltage
PLL Supply Voltage
Voltage difference V
Voltage difference V
Digital I/O Input Voltage
Analog Reference
XFC, EXTAL, XTAL inputs
TEST input
Instantaneous Maximum Current
Single pin limit for all digital I/O pins
Instantaneous Maximum Current
Single pin limit for XFC, EXTAL, XTAL
Instantaneous Maximum Current
Single pin limit for TEST
Storage Temperature Range
DD5
load will shunt current greater than maximum injection current. This will be the
DDX
SSX
2
SSPLL
Table A-1 Absolute Maximum Ratings
to V
to V
(5)
Rating
, but not clamped high. This pin must be tied low in applications.
SSR
(2)
DDR
DD5
SSPLL
and V
and V
(3)
and could result in external power supply going out of regulation.
(4)
and V
SSX
SSA
DDA
and V
DDPLL
DDX
.
, V
SSR
and V
DD5
Symbol
V
V
V
RH,
V
DDR
or V
DDPLL
V
V
VDDX
VSSX
V
T
TEST
I
I
DD5
I
DL
DT
stg
DD
ILV
D
IN
SS5
V
RL
or V
DD
MC9S12A128 Device Guide — V01.01
or V
in
SSA
range during instantaneous and
> V
DD5
(1)
and V
–0.25
DD5
Min
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–0.3
–25
–25
–65
).
DDA
) is greater than I
.
Max
10.0
+25
+25
155
6.0
3.0
3.0
0.3
0.3
6.0
6.0
3.0
0
DD5
Unit
mA
mA
mA
V
V
V
V
V
V
V
V
V
, the
C
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