STM32L081CB datasheet(46/110 Pages) STMICROELECTRONICS

46 / 110 page

Electrical characteristics

STM32L081xx

46/110

DocID027513 Rev 4

6.3

Operating conditions

6.3.1

General operating conditions

Table 20. 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

BOR detector disabled

1.65

3.6

BOR detector enabled, at power

1.8

3.6

BOR detector disabled, after

power on

1.65

3.6

VDDA

Analog operating voltage (all features)

Must be the same voltage as

VDD(1)

1.65

3.6

VDDIO2 Standard operating voltage

1.65

3.6

VIN

Input voltage on FT, FTf and RST pins(2)

2.0 V

 VDD  3.6 V

-0.3

5.5

1.65 V

 VDD  2.0 V

-0.3

5.2

Input voltage on BOOT0 pin

5.5

Input voltage on TC pin

-0.3

VDD+0.3

Power dissipation at TA = 85 °C (range 6)

or TA =105 °C (rage 7) (3)

LQFP48 package

370

UFQFPN32 package

556

LQFP32 package

333

Power dissipation at TA = 125 °C (range

3) (3)

LQFP48 package

UFQFPN32 package

139

LQFP32 package

Temperature range

Maximum power dissipation

(range 6)

–40

°C

Maximum power dissipation

(range 7)

–40

105

Maximum power dissipation

(range 3)

–40

125

Junction temperature range (range 6)

-40 °C

 TA  85 °

–40

105

Junction temperature range (range 7)

-40 °C

 TA  105 °C

–40

125

Junction temperature range (range 3)

-40 °C

 TA  125 °C

–40

130

1. 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 normal operation.

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

3. If TA is lower, higher PD values are allowed as long as TJ does not exceed TJ max (see Table 19: Thermal characteristics

on page 45).

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