STM32G081CB datasheet(57/136 Pages) STMICROELECTRONICS

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DS12231 Rev 4

57/136

STM32G081xB

Electrical characteristics

108

5.3.2

Operating conditions at power-up / power-down

The parameters given in Table 22 are derived from tests performed under the ambient

temperature condition summarized in Table 21.

5.3.3

Embedded reset and power control block characteristics

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

temperature conditions summarized in Table 21: General operating conditions.

VBAT

Backup operating voltage

1.55

3.6

VIN

I/O input voltage

All except TT_xx and FT_c

-0.3

Min(VDD + 3.6, 5.5)(2)

TT_xx

-0.3

VDD + 0.3

FT_c

-0.3

5.0(2)

Ambient temperature(3)

Suffix 6(4)

-40

°C

Suffix 7(4)

-40

105

Suffix 3(4)

-40

125

Junction temperature

Suffix 6(4)

-40

105

°C

Suffix 7(4)

-40

125

Suffix 3(4)

-40

130

1. When RESET is released functionality is guaranteed down to VPDR min.

2. For operation with voltage higher than VDD +0.3 V, the internal pull-up and pull-down resistors must be disabled.

3. The TA(max) applies to PD(max). At PD < PD(max) the ambient temperature is allowed to go higher than TA(max) provided

that the junction temperature TJ does not exceed TJ(max). Refer to Section 6.9: Thermal characteristics.

4. Temperature range digit in the order code. See Section 7: Ordering information.

Table 21. General operating conditions (continued)

Symbol

Parameter

Conditions

Min

Max

Unit

Table 22. Operating conditions at power-up / power-down

Symbol

Parameter

Conditions

Min

Max

Unit

tVDD

VDD slew rate

VDD rising

∞

µs/V

VDD falling; ULPEN = 0

∞

VDD falling; ULPEN = 1

100

∞

ms/V

Table 23. Embedded reset and power control block characteristics

Symbol

Parameter

Conditions(1)

Min

Typ

Max

Unit

tRSTTEMPO(2)

POR temporization when VDD crosses VPOR

VDD rising

250

400

μs

VPOR(2)

Power-on reset threshold

1.62

1.66

1.70

VPDR(2)

Power-down reset threshold

1.60

1.64

1.69

VBOR1

Brownout reset threshold 1

VDD rising

2.05

2.10

2.18

VDD falling

1.95

2.00

2.08

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