TC290 Datasheet, PDF (321/476 Pages) Infineon Technologies AG – 32-Bit Single-Chip Micocontroller

TC290 / TC297 / TC298 / TC299 BB-Step
Electrical SpecificationPin Reliability in Overload
3.3
Pin Reliability in Overload
When receiving signals from higher voltage devices, low-voltage devices experience overload currents and
voltages that go beyond their own IO power supplies specification.
The following table defines overload conditions that will not cause any negative reliability impact if all the following
conditions are met:
• full operation life-time (24500 h) is not exceeded
• Operating Conditions are met for
– pad supply levels
– temperature
If a pin current is out of the Operating Conditions but within the overload parameters, then the parameters
functionality of this pin as stated in the Operating Conditions can no longer be guaranteed. Operation is still
possible in most cases but with relaxed parameters.
Note: An overload condition on one or more pins does not require a reset.
Table 3-2 Overload Parameters
Parameter
Symbol
Input current on any digital pin I_IN
during overload condition
Input current on LVDS pin
during overload condition
Absolute maximum sum of all
input circuit currents during
overload condition
Input current on analog input
pin during overload condition
I_INLVDS
I_ING
I_INANA
Absolute sum of all ADC inputs I_INSCA
during overload condition
Absolute maximum sum of all
input circuit currents during
overload condition
ΣI_INS
Signal voltage over/undershoot V_OUS
at GPIOs
Inactive device pin current
I_ID
during overload condtion ²⁾
Sum of all inactive device pin I_IDS
currents ²⁾
Min.
-5
-15 ¹⁾
-3
-50
-3
-5
-20
-100
V_SS - 2
-1
-100
Values
Typ.
-
-
Max.
5
15 ¹⁾
-
3
-
50
Unit Note / Test Condition
mA except LVDS pins
mA except LVDS pins;
limited to max. 20
pulses with 1ms pulse
length
mA
mA
-
3
mA
-
5
mA limited to 60h over
lifetime
-
20
mA
-
100
mA
-
V_EXT/FLEX V
limited to 60h over
+2
lifetime; Valid for LP,
MP, MP+, and MPR
pads
-
1
mA All power supply
voltages V_DDx = 0
-
100
mA
Data Sheet
3-315
V 1.1 2015-05
TC290/TC297/TC298/TC299 BB-Step Data Sheet downloaded by saravanakumar maniyam (larsen and Toubro limited) at 08 Sep 2015 08:06