STM32G030F6 datasheet(65/94 Pages) STMICROELECTRONICS

65 / 94 page

DS12991 Rev 1

65/94

STM32G030x6/x8

Electrical characteristics

Figure 18. I/O AC characteristics definition(1)

1. Refer to Table 51: I/O AC characteristics.

5.3.15

NRST input characteristics

The NRST input driver uses CMOS technology. It is connected to a permanent

pull-up resistor, RPU.

Unless otherwise specified, the parameters given in the following table are derived from

tests performed under the ambient temperature and supply voltage conditions summarized

in Table 21: General operating conditions.

MS32132V2

10%

50%

90%

10%

50%

90%

Maximum frequency is achieved if (t + t (≤ 2/3)T and if the duty cycle is (45-55%)

when loaded by the specified capacitance.

r(IO)out

f(IO)out

Table 52. NRST pin characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL(NRST)

NRST input low level

voltage

0.3 x VDDIO1

VIH(NRST)

NRST input high level

voltage

0.7 x VDDIO1

Vhys(NRST)

NRST Schmitt trigger

voltage hysteresis

200

RPU

Weak pull-up

equivalent resistor(2)

VIN = VSS

kΩ

VF(NRST)

NRST input filtered

pulse

VNF(NRST)

NRST input not filtered

pulse

2.0 V ≤ VDD ≤ 3.6 V

350

Guaranteed by design.

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% order)

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