STM32F103VC Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

STM32F103VC

Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 com. interfaces

STMicroelectronics 

Electrical characteristics

STM32F103xC, STM32F103xD, STM32F103xE

Caution:

Cstray is the pin capacitance and board or trace PCB-related capacitance. Typically, it is

between 2 pF and 7 pF.

To avoid exceeding the maximum value of CL1 and CL2 (15 pF) it is strongly recommended

to use a resonator with a load capacitance CL  7 pF. Never use a resonator with a load

capacitance of 12.5 pF.

Example: if you choose a resonator with a load capacitance of CL = 6 pF, and Cstray = 2 pF,

then CL1 = CL2 = 8 pF.

Figure 23. Typical application with a 32.768 kHz crystal

5.3.7

Resonator with

integrated capacitors

CL1

32.768 kH z

resonator

CL2

OSC32_IN

RF

OSC32_OU T

Bias

controlled

gain

fLSE

STM32F103xx

ai14146

Internal clock source characteristics

The parameters given in Table 25 are derived from tests performed under ambient

temperature and VDD supply voltage conditions summarized in Table 10.

High-speed internal (HSI) RC oscillator

Table 25. HSI oscillator characteristics(1)

Symbol

Parameter

Conditions

Min Typ Max Unit

fHSI

Frequency

User-trimmed with the RCC_CR

register(2)

8

MHz

1(3)

%

ACCHSI

tsu(HSI)(4)

Accuracy of the HSI

oscillator

Factory-

calibrated(4)

HSI oscillator

startup time

TA = –40 to 105 °C

TA = –10 to 85 °C

TA = 0 to 70 °C

TA = 25 °C

–2

–1.5

–1.3

–1.1

1

2.5 %

2.2 %

2

%

1.8 %

2 µs

IDD(HSI)(4)

HSI oscillator power

consumption

80 100 µA

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

2. Refer to application note AN2868 “STM32F10xxx internal RC oscillator (HSI) calibration” available from

the ST website www.st.com.

3. Guaranteed by design, not tested in production.

4. Based on characterization, not tested in production.

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Doc ID 14611 Rev 7

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