STM32F730V8 datasheet(95/202 Pages) STMICROELECTRONICS

95 / 202 page

DS12536 Rev 2

95/202

STM32F730x8

Electrical characteristics

185

6.3.6

Over-drive switching characteristics

When the over-drive mode switches from enabled to disabled or disabled to enabled, the

system clock is stalled during the internal voltage set-up.

The over-drive switching characteristics are given in Table 23. They are sbject to general

operating conditions for TA.

VBOR1

Brownout level 1

threshold

Falling edge

2.13

2.19

2.24

Rising edge

2.23

2.29

2.33

VBOR2

Brownout level 2

threshold

Falling edge

2.44

2.50

2.56

Rising edge

2.53

2.59

2.63

VBOR3

Brownout level 3

threshold

Falling edge

2.75

2.83

2.88

Rising edge

2.85

2.92

2.97

VBORhyst(1) BOR hysteresis

100

TRSTTEMPO

(1)(2)

POR reset temporization

0.5

1.5

3.0

IRUSH(1)

InRush current on

voltage regulator power-

on (POR or wakeup

from Standby)

160

250

ERUSH(1)

InRush energy on

voltage regulator power-

on (POR or wakeup

from Standby)

VDD = 1.7 V, TA = 105 °C,

IRUSH = 171 mA for 31 µs

5.4

µC

1. Guaranteed by design.

2. The reset temporization is measured from the power-on (POR reset or wakeup from VBAT) to the instant

when first instruction is read by the user application code.

Table 22. reset and power control block characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 23. Over-drive switching characteristics(1)

1. Guaranteed by design.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Tod_swen

Over_drive switch

enable time

HSI

µs

HSE max for 4 MHz

and min for 26 MHz

100

External HSE

50 MHz

Tod_swdis

Over_drive switch

disable time

HSI

HSE max for 4 MHz

and min for 26 MHz.

External HSE

50 MHz

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