STM32F732IE datasheet(109/226 Pages) STMICROELECTRONICS

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DS11854 Rev 6

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STM32F732xx STM32F733xx

Electrical characteristics

198

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.

6.3.7

Supply current characteristics

The current consumption is a function of several parameters and factors such as the

operating voltage, ambient temperature, I/O pin loading, device software configuration,

operating frequencies, I/O pin switching rate, program location in memory and executed

binary code.

The current consumption is measured as described in Figure 28: Current consumption

measurement scheme.

All the run-mode current consumption measurements given in this section are performed

with a reduced code that gives a consumption equivalent to CoreMark code.

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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