STM32F103CBU6TR datasheet(38/116 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F103x8, STM32F103xB

38/116

DS5319 Rev 18

5.3

Operating conditions

5.3.1

General operating conditions

Table 9. General operating conditions

Symbol

Parameter

Conditions

Min

Max

Unit

fHCLK

Internal AHB clock frequency

MHz

fPCLK1

Internal APB1 clock frequency

fPCLK2

Internal APB2 clock frequency

VDD

Standard operating voltage

3.6

VDDA(1)

1. When the ADC is used, refer to Table 46.

Analog operating voltage



(ADC not used)

Must be the same potential

as VDD(2)

2. It is recommended to power VDD and VDDA from the same source. A maximum difference of 300 mV

between VDD and VDDA can be tolerated during power-up and operation.

23.6

Analog operating voltage



(ADC used)

2.4

3.6

VBAT

Backup operating voltage

1.8

3.6

VIN

I/O input voltage

Standard IO

–0.3

VDD+

0.3

FT IO(3)

3. To sustain a voltage higher than VDD + 0.3 V, the internal pull-up/pull-down resistors must be disabled.

2 V < VDD  3.6 V –0.3

5.5

VDD = 2 V

–0.3

5.2

BOOT0

5.5

Power dissipation at



TA = 85 °C for suffix 6 or 

TA = 105 °C for suffix 7(4)

4. If TA is lower, higher PD values are allowed as long as TJ does not exceed TJmax (see Section 6.9).

LFBGA100

454

LQFP100

434

UFBGA100

339

TFBGA64

308

LQFP64

444

LQFP48

363

UFQFPN48

624

VFQFPN36

1000

Ambient temperature for 6

suffix version

Maximum power dissipation

–40

°C

Low-power dissipation(5)

5. In low-power dissipation state, TA can be extended to this range as long as TJ does not exceed TJmax (see

Section 6.9).

–40

105

Ambient temperature for 7

suffix version

Maximum power dissipation

–40

105

Low-power dissipation(5)

–40

125

Junction temperature range

6 suffix version

–40

105

7 suffix version

–40

125

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