STM32L4S5AI datasheet(185/275 Pages) STMICROELECTRONICS

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STM32L4S5xx, STM32L4S7xx and STM32L4S9xx

Electrical characteristics

250

Figure 34. Recommended NRST pin protection

1. The reset network protects the device against parasitic resets.

2. The user must ensure that the level on the NRST pin can go below the VIL(NRST) max level specified in

Table 70: NRST pin characteristics. Otherwise the reset will not be taken into account by the device.

3. The external capacitor on NRST must be placed as close as possible to the device.

6.3.19

Extended interrupt and event controller input (EXTI) characteristics

The pulse on the interrupt input must have a minimal length in order to guarantee that it is

detected by the event controller.

6.3.20

Analog switches booster

MS19878V3

RPU

VDD

Internal reset

External

reset circuit

(1)

NRST

(2)

Filter

0.1 μF

Table 71. EXTI input characteristics(1)

1. Guaranteed by design.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

PLEC

Pulse length to event

controller

-20

Table 72. Analog switches booster characteristics(1)

1. Guaranteed by design.

Symbol

Parameter

Min

Typ

Max

Unit

VDD

Supply voltage

1.62

3.6

tSU(BOOST)

Booster startup time

240

µs

IDD(BOOST)

Booster consumption for

1.62 V

≤ VDD ≤ 2.0 V

250

µA

Booster consumption for

2.0 V

≤ VDD ≤ 2.7 V

500

Booster consumption for

2.7 V

≤ VDD ≤ 3.6 V

900

STM32L4S5AI Datasheet(PDF) 185 Page - STMicroelectronics

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