Datasheet
Electrical characteristics STM32F410x8/B
92/142 DocID028094 Rev 5
Functional susceptibility to I/O current injection
While a simple application is executed on the device, the device is stressed by injecting
current into the I/O pins programmed in floating input mode. While current is injected into
the I/O pin, one at a time, the device is checked for functional failures.
The failure is indicated by an out of range parameter: ADC error above a certain limit (>5
LSB TUE), out of conventional limits of induced leakage current on adjacent pins
(out of –5 µA/+0 µA range), or other functional failure (for example reset, oscillator
frequency deviation).
Negative induced leakage current is caused by negative injection and positive induced
leakage current by positive injection.
The test results are given in Table 54.
Note: It is recommended to add a Schottky diode (pin to ground) to analog pins which may
potentially inject negative currents.
6.3.16 I/O port characteristics
General input/output characteristics
Unless otherwise specified, the parameters given in Table 55 are derived from tests
performed under the conditions summarized in Table 15. All I/Os are CMOS and TTL
compliant.
Table 54. I/O current injection susceptibility
(1)
1. NA = not applicable
.
Symbol Description
Functional susceptibility
Unit
Negative
injection
Positive
injection
I
INJ
Injected current on BOOT0 pin - 0 NA
mA
Injected current on NRST pin - 0 NA
Injected current on PB3, PB4, PB5, PB6,
PB7, PB8, PB9, PC13, PC14, PC15, PH1,
PDR_ON, PC0, PC1, PC2, PC3
- 0 NA
Injected current on any other FT pin - 5 NA
Injected current on any other pins - 5 + 5
Table 55. I/O static characteristics
Symbol Parameter Conditions Min Typ Max Unit
V
IL
FT, TC and NRST I/O input low
level voltage
1.7 V
≤ V
DD
≤ 3.6 V - - 0.3V
DD
(1)
V
BOOT0 I/O input low level
voltage
1.75 V
≤ V
DD
≤ 3.6 V,
- 40 °C
≤ T
A
≤ 125 °C
--
0.1V
DD
+0.1
(2)
1.7 V≤ V
DD
≤ 3.6 V,
0 °C
≤ T
A
≤ 125 °C
--
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