Datasheet

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STM32F427xx STM32F429xx Electrical characteristics
198
6.3.15 Absolute maximum ratings (electrical sensitivity)
Based on three different tests (ESD, LU) using specific measurement methods, the device is
stressed in order to determine its performance in terms of electrical sensitivity.
Electrostatic discharge (ESD)
Electrostatic discharges (a positive then a negative pulse separated by 1 second) are
applied to the pins of each sample according to each pin combination. The sample size
depends on the number of supply pins in the device (3 parts × (n+1) supply pins). This test
conforms to the ANSI/ESDA/JEDEC JS-001 and ANSI/ESD S5.3.1 standards.
Static latchup
Two complementary static tests are required on six parts to assess the latchup
performance:
• A supply overvoltage is applied to each power supply pin
• A current injection is applied to each input, output and configurable I/O pin
These tests are compliant with EIA/JESD 78A IC latchup standard.
Table 53. ESD absolute maximum ratings
Symbol Ratings Conditions Class
Maximum
value
(1)
Unit
V
ESD(HBM)
Electrostatic discharge
voltage (human body
model)
T
A
= +25 °C conforming to
ANSI/ESDA/JEDEC JS-001
2 2000
V
V
ESD(CDM)
Electrostatic discharge
voltage (charge device
model)
T
A
= +25 °C conforming to ANSI/ESD S5.3.1,
LQFP100/144/176, UFBGA169/176,
TFBGA176 and WLCSP143 packages
C3 250
T
A
= +25 °C conforming to ANSI/ESD S5.3.1,
LQFP208 package
C3 250
1. Guaranteed by characterization results.
Table 54. Electrical sensitivities
Symbol Parameter Conditions Class
LU Static latch-up class T
A
= +105 °C conforming to JESD78A II level A
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