STM32L431 datasheet(131/200 Pages) STMICROELECTRONICS

Part #	STM32L431

Description	RTC with HW calendar, alarms and calibration

PDF	200 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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131 / 200 page

DocID028800 Rev 1

131/200

STM32L431xx

Electrical characteristics

168

Figure 29. 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 62: 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.

6.3.16

Analog switches booster

Table 63. 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

STM32L431 Datasheet(PDF) 131 Page - STMicroelectronics

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