STM32F030K6P6TR(2013) Ver la hoja de datos (PDF) - STMicroelectronics

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STM32F030K6P6TR
(Rev.:2013)

Value-line ARM®-based 32-bit MCU with up to 256-KB Flash, timers, ADC, communication interfaces, 2.4-3.6 V operation

STMicroelectronics 

Electrical characteristics

STM32F030x4 STM32F030x6 STM32F030x8

Figure 18. I/O AC characteristics definition

90%

50%

10%

10%

50%

90%

EXTERNAL tr(IO)out

OUTPUT

ON 50 pF

t f(IO)out

T

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

when loaded by 50 pF

MS32132V1

6.3.15

NRST pin characteristics

The NRST pin input driver uses the CMOS technology. It is connected to a permanent pull-

up resistor, RPU (see Table 44: I/O static characteristics).

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

performed under ambient temperature and VDD supply voltage conditions summarized in

Table 18: General operating conditions.

Table 47. NRST pin characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL(NRST)

VIH(NRST)

NRST input low level voltage

NRST input high level

voltage

–0.3

2

-

0.8(1)

V

-

VDD+0.3(1)

Vhys(NRST)

NRST Schmitt trigger

voltage hysteresis

-

200

-

mV

RPU

Weak pull-up equivalent

resistor(2)

VIN VSS

30

40

50

k

VF(NRST) NRST input filtered pulse

VNF(NRST) NRST input not filtered pulse

-

300(1)

-

100(1)

ns

-

-

ns

1. Guaranteed by design, not tested in production.

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

the series resistance must be minimum (~10% order).

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