STM32F103C8 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

STM32F103C8

Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces

STMicroelectronics 

STM32F103xx

Electrical characteristics

5.3.12

I/O port pin characteristics

General input/output characteristics

Unless otherwise specified, the parameters given in Table 29 are derived from tests

performed under ambient temperature and VDD supply voltage conditions summarized in

Table 7.

All unused pins must be held at a fixed voltage, by using the I/O output mode, an external

pull-up or pull-down resistor (see Figure 15).

Table 29. I/O static characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max Unit

VIL Input low level voltage(2)

IO TC input high level

VIH voltage(2)

IO FT high level voltage(2)

VIL Input low level voltage(2)

VIH Input high level voltage(2)

IO TC Schmitt trigger voltage

hysteresis(3)

Vhys

IO TC Schmitt trigger voltage

hysteresis(3)

–0.5

TTL ports

2

0.8

V

VDD+0.5

CMOS ports

2

–0.5

0.65 VDD

5.5V

0.35 VDD

V

VDD+0.5

200

mV

5% VDD(4)

mV

Ilkg Input leakage current (5)

VSS ≤VIN ≤VDD

Standard I/Os

VIN= 5 V

5 V tolerant I/Os

±1

µA

3

RPU

Weak pull-up equivalent

resistor(6)

VIN = VSS

30

40

50

kΩ

RPD

Weak pull-down equivalent

resistor(6)

VIN = VDD

30

40

50

kΩ

CIO I/O pin capacitance

5

pF

1. VDD = 3.3 V, TA = −40 to 105 °C unless otherwise specified.

2. Values based on characterization results, and not tested in production.

3. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.

4. With a minimum of 100 mV.

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

6. 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).

43/67

Share Link: