STM32U073R8 datasheet(83/146 Pages) STMICROELECTRONICS

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Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Ilkg(4)

FT_xx input leakage

current(3)(5)

Max(VDDXXX) ≤ VIN ≤ Max(VDDXXX) + 1 V(6)(7)

650

Max(VDDXXX) + 1 V < VIN ≤ 5.5 V(6)(7)

200

PC3 I/O

VIN ≤ Max(VDDXXX)(6)(7)

±150

Max(VDDXXX) ≤ VIN ≤ Max(VDDXXX) + 1 V(6)(7)

2500(3)

Max(VDDXXX) + 1 V < VIN ≤ 5.5 V(6)(7)

250

TT_xx input leakage

current

VIN ≤ Max(VDDXXX)(6)

±150

Max(VDDXXX) ≤ VIN < 3.6V(6)

2000(3)

RPU

Weak pull-up equivalent

resistor(8)

VIN = VSS

kΩ

RPD

Weak pull-down equivalent

resistor(8)

VIN = VDDIOx

kΩ

CIO

I/O pin capacitance

1. Refer to Figure 23. I/O input characteristics.

2. Tested in production.

3. Specified by design, not tested in production.

4. This value represents the pad leakage of the IO itself. The total product pad leakage is provided by this formula:

ITotal_Ileak_max = 10 µA + [number of IOs where VIN is applied on the pad] × Ilkg(Max).

5. All FT_xx GPIOs except FT_u and PC3 I/O.

6. Max(VDDXXX) is the maximum value of all the I/O supplies. Refer to Table: Legend/Abbreviations used in the pinout table.

7. To sustain a voltage higher than Min(VDD, VDDA, VDDUSB) + 0.3 V, the internal Pull-up and Pull-Down resistors must be disabled.

8. Pull-up and pull-down resistors are designed with a true resistance in series with a switchable PMOS/NMOS. This PMOS/NMOS

contribution to the series resistance is minimal (~10% order).

All I/Os are CMOS- and TTL-compliant (no software configuration required). Their characteristics cover more than

the strict CMOS-technology or TTL parameters. The coverage of these requirements is shown in Figure 23. I/O

input characteristics.

STM32U073x8/B/C

Electrical characteristics

DS14548 - Rev 2

page 83/146

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