STM32L462CEU6 datasheet(87/198 Pages) STMICROELECTRONICS

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STM32L462CE STM32L462RE STM32L462VE

Electrical characteristics

174

6.3.2

Operating conditions at power-up / power-down

The parameters given in Table 21 are derived from tests performed under the ambient

temperature condition summarized in Table 20.

6.3.3

Embedded reset and power control block characteristics

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

temperature conditions summarized in Table 20: General operating conditions.

Junction temperature range

Suffix 6 version

–40

105

°C

Suffix 3 version

–40

130

1. When RESET is released functionality is guaranteed down to VBOR0 Min.

2. This formula has to be applied only on the power supplies related to the IO structure described by the pin definition table.

Maximum I/O input voltage is the smallest value between MIN(VDD, VDDA, VDDUSB)+3.6 V and 5.5V.

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. If TA is lower, higher PD values are allowed as long as TJ does not exceed TJmax (see Section 7.7: Thermal characteristics).

5. In low-power dissipation state, TA can be extended to this range as long as TJ does not exceed TJmax (see Section 7.7:

Thermal characteristics).

Table 20. General operating conditions (continued)

Symbol

Parameter

Conditions

Min

Max

Unit

Table 21. Operating conditions at power-up / power-down

Symbol

Parameter

Conditions

Min

Max

Unit

tVDD

VDD rise time rate

∞

µs/V

VDD fall time rate

∞

tVDDA

VDDA rise time rate

∞

µs/V

VDDA fall time rate

∞

tVDDUSB

VDDUSB rise time rate

∞

µs/V

VDDUSB fall time rate

∞

Table 22. 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)

Brown-out reset threshold 0

Rising edge

1.62

1.66

1.7

Falling edge

1.6

1.64

1.69

VBOR1

Brown-out reset threshold 1

Rising edge

2.06

2.1

2.14

Falling edge

1.96

2.04

VBOR2

Brown-out reset threshold 2

Rising edge

2.26

2.31

2.35

Falling edge

2.16

2.20

2.24

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