STM32H750VB datasheet(232/335 Pages) STMICROELECTRONICS

232 / 335 page

Electrical characteristics (rev V)

STM32H750VB STM32H750ZB STM32H750IB STM32H750XB

232/334

DS12556 Rev 5

7.3.12

EMC characteristics

Susceptibility tests are performed on a sample basis during device characterization.

Functional EMS (electromagnetic susceptibility)

While a simple application is executed on the device (toggling 2 LEDs through I/O ports).

the device is stressed by two electromagnetic events until a failure occurs. The failure is

indicated by the LEDs:



Electrostatic discharge (ESD) (positive and negative) is applied to all device pins until

a functional disturbance occurs. This test is compliant with the IEC 61000-4-2 standard.



FTB: A burst of fast transient voltage (positive and negative) is applied to VDD and VSS

through a 100 pF capacitor, until a functional disturbance occurs. This test is compliant

with the IEC 61000-4-4 standard.

A device reset allows normal operations to be resumed.

The test results are given in Table 150. They are based on the EMS levels and classes

defined in application note AN1709.

As a consequence, it is recommended to add a serial resistor (1 k?) located as close as

possible to the MCU to the pins exposed to noise (connected to tracks longer than 50 mm

on PCB).

Table 149. Flash memory endurance and data retention

Symbol

Parameter

Conditions

Value

Unit

Min(1)

NEND

Endurance

TJ = –40 to +125 °C (6 suffix versions)

kcycles

tRET

Data retention

1 kcycle at TA = 85 °C

Years

10 kcycles at TA = 55 °C

1. Guaranteed by characterization results.

Table 150. EMS characteristics

Symbol

Parameter

Conditions

Level/

Class

VFESD

Voltage limits to be applied on any I/O pin to induce

a functional disturbance

VDD = 3.3 V, TA = +25 °C,

UFBGA240, frcc_c_ck =

400 MHz, conforms to

IEC 61000-4-2

VFTB

Fast transient voltage burst limits to be applied

through 100 pF on VDD and VSS pins to induce a

functional disturbance

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