STM32U073RCY6 datasheet(45/146 Pages) STMICROELECTRONICS

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Symbol Parameter

Conditions

Min

Max

Unit

USB not used

3.6

VIN

I/O input voltage

TT_xx I/Os

-0.3

VDDIOx + 0.3

All I/Os except TT_xx pins

-0.3

Min(Min(VDD, VDDA,

VDDUSB) + 3.6, 5.5)(2)(3)

Ambient temperature for suffix 6

Maximum power

dissipation

-40

°C

Low-power dissipation(4)

105

Ambient temperature for suffix 3

Maximum power

dissipation

125

Low-power dissipation(4)

130

Junction temperature range

Suffix 6 version

-40

105

Suffix 3 version

130

1. When RESET is released, the functionality is guaranteed down to VBOR0 min.

2. This formula has to be applied only on the power supplies related to the I/O structure described by the pin definition table. The maximum I/O

input voltage is the smallest value between Min (VDD, VDDA, VDDUSB) + 3.6 V and 5.5 V.

3. For operation with voltage higher than Min (VDD, VDDA, VDDUSB) + 0.3 V, the internal pull

‑up and pull‑down resistors must be disabled.

4. In low

‑power dissipation state, TA can be extended to this range as long as TJ does not exceed TJ max (see Section 7.10: Package thermal

characteristics).

6.3.2

Operating conditions at power-up / power-down

The parameters given in Table 23 are derived from tests performed under the ambient temperature condition

summarized in Section 6.3.1: General operating conditions.

Table 23. Operating conditions at power-up / power-down

Symbol

Parameter

Conditions

Min

Max

Unit

tVDD

VDD rise time rate

∞

µs/V

VDD fall time rate

ULPEN = 0

∞

ULPEN = 1

100

∞

ms/V

tVDDA

VDDA rise time rate

∞

µs/V

VDDA fall time rate

∞

tVDDUSB

VDDUSB rise time rate

∞

µs/V

VDDUSB fall time rate

∞

6.3.3

Embedded reset and power control block characteristics

The parameters given in Table 24. Embedded reset and power control block characteristics are derived from tests

performed under the ambient temperature conditions summarized in Section 6.3.1: General operating conditions.

Table 24. Embedded reset and power control block characteristics

Symbol

Parameter

Conditions(1)

Min Typ Max Unit

tRSTTEMPO(2)

Reset temporization after BOR0 is detected

VDD rising

250

400

μs

VBOR0(2)

Brownout reset threshold 0

Rising edge

1.62 1.66

1.7

Falling edge

1.6 1.64 1.69

VBOR1

Brownout reset threshold 1

Rising edge

2.06 2.1

2.14

Falling edge

1.96

2.04

STM32U073x8/B/C

Electrical characteristics

DS14548 - Rev 2

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