STM32F334X4 datasheet(49/115 Pages) STMICROELECTRONICS

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STM32F334x4 STM32F334x6 STM32F334x8

Electrical characteristics

100

6.3

Operating conditions

6.3.1

General operating conditions

Table 19. 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

VDD18

Core, SRAM and Flash memory

power supply

-1.65

1.95

VDDA

Analog operating voltage

(OPAMP and DAC not used)

Must have a potential equal to

or higher than VDD

23.6

Analog operating voltage

(OPAMP and DAC used)

2.4

3.6

VBAT

Backup operating voltage

1.65

3.6

VIN

I/O input voltage

TC I/O

–0.3

VDD+0.3

TT I/O

-0.3

3.6

TTa I/O

–0.3

VDDA+0.3

FT and FTf I/O(1)

–0.3

5.5

BOOT0

5.5

Power dissipation at TA = 85 °C for

suffix 6 or TA = 105 °C for suffix

7(2)

LQFP64

444

Power dissipation at TA = 85 °C for

suffix 6 or TA = 105 °C for suffix

7(2)

LQFP48

364

Power dissipation at TA = 85 °C for

suffix 6 or TA = 105 °C for suffix 7

LQFP32

333

Ambient temperature for 6 suffix

version

Maximum power dissipation

–40

°C

Low power dissipation(3)

–40

105

Ambient temperature for 7 suffix

version

Maximum power dissipation

–40

105

°C

Low power dissipation(3)

–40

125

Junction temperature range

6 suffix version

–40

105

°C

7 suffix version

–40

125

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

2. If TA is lower, higher PD values are allowed as long as TJ does not exceed TJmax (see Section Table 78.: Package thermal

characteristics).

3. In low power dissipation state, TA can be extended to this range as long as TJ does not exceed TJmax (see Section 7.5:

Thermal characteristics).

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