STM32F031X4 datasheet(65/106 Pages) STMICROELECTRONICS

Part #	STM32F031X4

Description	ARM-based 32-bit MCU with up to 32 Kbyte Flash, 9 timers, ADC and communication interfaces, 2.0 - 3.6 V

PDF	106 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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65 / 106 page

DocID025743 Rev 4

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STM32F031x4 STM32F031x6

Electrical characteristics

All I/Os are CMOS- and TTL-compliant (no software configuration required). Their

characteristics cover more than the strict CMOS-technology or TTL parameters. The

coverage of these requirements is shown in Figure 20 for standard I/Os, and in Figure 21 for

5 V tolerant I/Os. The following curves are design simulation results, not tested in

production.

RPU

Weak pull-up

equivalent resistor

(3)

VIN = VSS

RPD

Weak pull-down

equivalent

resistor(3)

VIN = VDDIOx

CIO

I/O pin capacitance

1. Data based on design simulation only. Not tested in production.

2. The leakage could be higher than the maximum value, if negative current is injected on adjacent pins. Refer to Table 45:

I/O current injection susceptibility.

3. Pull-up and pull-down resistors are designed with a true resistance in series with a switchable PMOS/NMOS. This

PMOS/NMOS contribution to the series resistance is minimal (~10% order).

Table 46. I/O static characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

STM32F031X4 Datasheet(PDF) 65 Page - STMicroelectronics