STM32F103RCT6 datasheet(89/143 Pages) STMICROELECTRONICS

89 / 143 page

DS5792 Rev 13

89/143

STM32F103xC, STM32F103xD, STM32F103xE

Electrical characteristics

135

5.3.14

I/O port characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 46 are derived from tests

performed under the conditions summarized in Table 10. All I/Os are CMOS and TTL

compliant.

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 42 and Figure 43 for standard I/Os, and

in Figure 44 and Figure 45 for 5 V tolerant I/Os.

Table 46. I/O static characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIL

Standard IO input low

level voltage

–0.3

0.28*(VDD-2 V)+0.8 V

IO FT(1) input low level

voltage

–0.3

0.32*(VDD-2 V)+0.75 V V

VIH

Standard IO input high

level voltage

0.41*(VDD-2 V)+1.3

-VDD+0.3

IO FT(1) input high level

voltage

VDD > 2 V

0.42*(VDD-2 V)+1 V

5.5

VDD ≤2 V

5.2

Vhys

Standard IO Schmitt

trigger voltage

hysteresis(2)

200

IO FT Schmitt trigger

voltage hysteresis(2)

5% VDD(3)

Ilkg

Input leakage current (4)

VSS ≤VIN ≤VDD

Standard I/Os

±1

µA

VIN= 5 V,

I/O FT

RPU

Weak pull-up equivalent

resistor(5)

VIN = VSS

RPD

Weak pull-down

equivalent resistor(5)

VIN = VDD

CIO

I/O pin capacitance

1. FT = Five-volt tolerant. In order to sustain a voltage higher than VDD+0.3 the internal pull-up/pull-down resistors must be

disabled.

2. Hysteresis voltage between Schmitt trigger switching levels. Guaranteed by characterization results.

3. With a minimum of 100 mV.

4. Leakage could be higher than max. if negative current is injected on adjacent pins.

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

MOS/NMOS contribution to the series resistance is minimum (~10% order)

STM32F103RCT6 Datasheet(PDF) 89 Page - STMicroelectronics

STM32F103RCT6 Datasheet(HTML) 89 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL