STM32H523VCU6 datasheet(95/228 Pages) STMICROELECTRONICS

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DS14540 Rev 1

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STM32H523xx

Electrical characteristics

197

pins on the underside of the PCB to ensure the good functionality of the device. It is not

recommended to remove filtering capacitors to reduce PCB size or cost. This might cause

incorrect operation of the device.

5.2

Absolute maximum ratings

Stresses above the absolute maximum ratings listed in Table 16, Table 17, and Table 18

may cause permanent damage to the device. These are stress ratings only and the

functional operation of the device at these conditions is not implied. Exposure to maximum

rating conditions for extended periods may affect device reliability. Device mission profile

(application conditions) is compliant with JEDEC JESD47 Qualification Standard, extended

mission profiles are available on demand.

Table 16. Voltage characteristics(1)

Symbol

Ratings

Min

Max

Unit

VDDx - VSS

External main supply voltage (including VDDA,

VDDUSB, VDDIO2(2)(3)(4), VBAT, and VREF+)

-0.3

4.0

VDDIOx(4) -

VSS

I/O supply when HSLV(2) = 0

-0.3

4.0

I/O supply when HSLV(2) = 1

-0.3

2.75

VIN(5)

Input voltage on FT_xxx pins except FT_c pins VSS - 0.3

min (min(VDD, VDDA, VDDUSB,

VDDIO2) + 4.0, 6.0 V)(6)(7)

Input voltage on FT_t in VBAT mode

VSS - 0.3

min (min(VBAT, VDDA, VDDUSB,

VDDIO2) + 4.0V, 6.0 V)

Input voltage on TT_xx pins

VSS - 0.3

4.0

Input voltage on BOOT0 pin

VSS

min (min(VDD, VDDA, VDDUSB,

VDDIO2) + 4.0, 6.0 V)(6)

Input voltage on FT_c pins

VSS - 0.3

5.5

Input voltage on any other pins

VSS - 0.3

4.0

VREF+-VDDA Allowed voltage difference for VREF+ > VDDA

-0.4

|∆VDDx|

Variations between different VDDX power pins

of the same domain

-50.0

|VSSx-VSS|

Variations between all the different ground pins

50.0

1. All main power (VDD, VDDAVDDUSB, VDDIO2, VREF+, VBAT) and ground (VSS, VSSA) pins must always be connected to the

external power supply, in the permitted range.

2. HSLV = High-speed low-voltage mode. Refer to General-purpose I/Os (GPIO) section of RM0481.

3. If HSLV = 0.

4. VDDIO1 or VDDIO2. VDDIO1 = VDD.

5. VIN maximum must always be respected. Refer to the maximum allowed injected current values.

6. To sustain a voltage higher than 4 V the internal pull-up/pull-down resistors must be disabled.

7. This formula must be applied on power supplies related to the I/O structure described by the pin definition table.

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