STM32L062T8 datasheet(16/124 Pages) STMICROELECTRONICS

16 / 124 page

Functional overview

STM32L062x8

16/124

DS10183 Rev 11

Table 2. Functionalities depending on the operating power supply range

Operating power supply

range(1)

1. GPIO speed depends on VDD voltage range. Refer to Table 53: I/O AC characteristics for more information

about I/O speed.

Functionalities depending on the operating power supply

range

DAC and ADC

operation

Dynamic voltage

scaling range

USB

VDD = 1.65 to 1.71 V

ADC only, conversion

time up to 570 ksps

Range 2 or

range 3

Not functional

VDD = 1.71 to 1.8 V(2)

2. CPU frequency changes from initial to final must respect "fcpu initial <4*fcpu final". It must also respect 5

μs delay between two changes. For example to switch from 4.2 MHz to 32 MHz, you can switch from 4.2

MHz to 16 MHz, wait 5 μs, then switch from 16 MHz to 32 MHz.

ADC only, conversion

time up to 1.14 Msps

Range 1, range 2 or

range 3

Functional

VDD = 1.8 to 2.0 V(2)

Conversion time up to

1.14 Msps

Range1, range 2 or

range 3

Functional

VDD = 2.0 to 2.4 V

Conversion time up to

1.14 Msps

Range 1, range 2 or

range 3

Functional

VDD = 2.4 to 3.6 V

Conversion time up to

1.14 Msps

Range 1, range 2 or

range 3

Functional

Table 3. CPU frequency range depending on dynamic voltage scaling

CPU frequency range

Dynamic voltage scaling range

16 MHz to 32 MHz (1ws)

32 kHz to 16 MHz (0ws)

Range 1

8 MHz to 16 MHz (1ws)

32 kHz to 8 MHz (0ws)

Range 2

32 kHz to 4.2 MHz (0ws)

Range 3

Table 4. Functionalities depending on the working mode

(from Run/active down to standby) (1)

IPs

Run/Active

Sleep

Low-

power

run

Low-

power

sleep

Stop

Standby

Wakeup

capability

Wakeup

capability

CPU

Flash memory

RAM

Backup registers

EEPROM

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