STM32F051R4T6TR STMicroelectronics, STM32F051R4T6TR Datasheet - Page 67

• Manufacturer Part Number: STM32F051R4T6TR
• Description: ARM Microcontrollers - MCU ARM Cortex M0 16kB 48 MHz CPU 8kB Flash
• Manufacturer: STMicroelectronics

Specifications of STM32F051R4T6TR

• Rohs: yes

Electrical characteristics
6.3.12
68/105
Static latch-up
Two complementary static tests are required on six parts to assess the latch-up
performance:
●
●
These tests are compliant with EIA/JESD 78A IC latch-up standard.
Table 48.
I/O current injection characteristics
As a general rule, current injection to the I/O pins, due to external voltage below V
above V
operation. However, in order to give an indication of the robustness of the microcontroller in
cases when abnormal injection accidentally happens, susceptibility tests are performed on a
sample basis during device characterization.
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 current injection on adjacent pins (lower than
or lower than − 10 µA), or other functional failure (for example reset, oscillator frequency
deviation).
The characterization results are given in
Table 49. I/O current injection susceptibility
Symbol
Symbol
LU
I
A supply overvoltage is applied to each power supply pin
A current injection is applied to each input, output and configurable I/O pin
INJ
DD
(for standard, 3 V-capable I/O pins) should be avoided during normal product
Static latch-up class
Electrical sensitivities
Injected current on BOOT0, PF0-OSC_IN
and PF1-OSC_OUT pins
Injected current on PA10, PA12, PB4, PB5,
PB10, PB15 and PD2 with current injection
on adjacent pins > –5 µA and <–10 µA
Injected current on other FT and FTf pins
with current injection on adjacent pins
<–5 µA
Injected current on PA6 and PC0 pins
Injected current on all other TTa pins
Injected current on TC and RST pins
Parameter
Description
Doc ID 022265 Rev 3
T
A
= +105 °C conforming to JESD78A
Table
49.
Conditions
Functional susceptibility
Negative
injection
–0
–5
–5
–0
–5
–5
injection
Positive
NA
NA
NA
+5
+5
+5
STM32F051x
II level A
Class
SS
Unit
or
–
mA
5 µA