STM32F302X8 datasheet(59/138 Pages) STMICROELECTRONICS

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STM32F302x6 STM32F302x8

Electrical characteristics

117

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 Table 22.

6.3.3

Embedded reset and power control block characteristics

The parameters given in Table 24 are derived from tests performed under ambient

temperature and VDD supply voltage conditions summarized in Table 22.

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

∞

tVDDA

VDDA rise time rate

∞

VDDA fall time rate

∞

Table 24. Embedded reset and power control block characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VPOR/PDR(1)

1. The PDR detector monitors VDD and also VDDA (if kept enabled in the option bytes). The POR detector

monitors only VDD.

Power on/power down

reset threshold

Falling edge

1.8(2)

2. The product behavior is guaranteed by design down to the minimum VPOR/PDR value.

1.88

1.96

Rising edge

1.84

1.92

2.0

VPDRhyst(1) PDR hysteresis

tRSTTEMPO(3)

3. Based on characterization, not tested in production.

POR reset

temporization

1.5

2.5

4.5

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