MC9S12DP512 Datasheet, PDF (87/124 Pages) Freescale Semiconductor, Inc – Microcontroller Unit (MCU)

Freescale Semiconductor_M,_CI₉n_S1c₂._{DP512 Device Guide V01.23}
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 VDD5 load will shunt current greater than maximum injection current. This will be the
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_SS5 or V_DD5).
Table A-1 Absolute Maximum Ratings¹
Num
Rating
Symbol
1 I/O, Regulator and Analog Supply Voltage
V_DD5
2 _{Digital Logic Supply Voltage} ²
V_DD
3 _{PLL Supply Voltage} ⁽²⁾
V_DDPLL
4 Voltage difference VDDX to VDDR and VDDA
∆_VDDX
5 Voltage difference VSSX to VSSR and VSSA
∆_VSSX
6 Digital I/O Input Voltage
V_IN
7 Analog Reference
V_RH, V_RL
8 XFC, EXTAL, XTAL inputs
V_ILV
9 TEST input
V_TEST
Instantaneous Maximum Current
10 _{Single pin limit for all digital I/O pins 3}
I_D
Instantaneous Maximum Current
11 _{Single pin limit for XFC, EXTAL, XTAL4}
I_DL
Instantaneous Maximum Current
12 _{Single pin limit for TEST 5}
I_DT
13 Storage Temperature Range
T_stg
NOTES:
1. Beyond absolute maximum ratings device might be damaged.
Min
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-25
-25
-0.25
– 65
Max
6.0
3.0
3.0
0.3
0.3
6.0
6.0
3.0
10.0
+25
+25
0
155
Unit
V
V
V
V
V
V
V
V
V
mA
mA
mA
°C
87
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