STM32WB10CCU5 datasheet(90/110 Pages) STMICROELECTRONICS

부품명	STM32WB10CCU5

상세설명	Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5.2 radio solution

PDF	110 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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90 / 110 page

Electrical characteristics

STM32WB10CC

90/110

DS13259 Rev 2

Figure 18. 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 64, 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.

Table 64. NRST pin characteristics(1)

Specified by design, not tested in production.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL(NRST)

NRST input



low level voltage

0.3 x VDD

VIH(NRST)

NRST input



high level voltage

0.7 x VDD

Vhys(NRST)

NRST Schmitt trigger

voltage hysteresis

200

RPU

Weak pull-up

equivalent resistor(2)

2. The pull-up is designed with a true resistance in series with a switchable PMOS. This PMOS contribution to

the series resistance is minimal (~10%)

VIN = VSS

kΩ

VF(NRST)

NRST input



filtered pulse

VNF(NRST)

NRST input



not filtered pulse

2.0 V ≤ VDD ≤ 3.6 V

350

MS19878V3

RPU

VDD

Internal reset

External

reset circuit

(1)

NRST

(2)

Filter

0.1 μF

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