STM32L011X3 datasheet(16/115 Pages) STMICROELECTRONICS

16 / 115 page

DocID027973 Rev 4

16/115

STM32L011x3/4

Functional overview

VDD = 1.8 to 2.0 V(1)

Conversion time up

to 1.14 Msps

Range1, range 2 or

range 3

Degraded speed

performance

VDD = 2.0 to 2.4 V

Conversion time up

to 1.14 Msps

Range 1, range 2 or

range 3

Full speed operation

VDD = 2.4 to 3.6 V

Conversion time up

to 1.14 Msps

Range 1, range 2 or

range 3

Full speed operation

1. CPU frequency changes from initial to final must respect the condition: fCPU initial <4fCPU initial. 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.

Table 4. 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 3. Functionalities depending on the operating power supply range (continued)

Operating power supply

range

Functionalities depending on the operating power supply range

ADC operation

Dynamic voltage

scaling range

I/O operation

Table 5. Functionalities depending on the working mode

(from Run/active down to standby) (1)(2)

IPs

Run/Active

Sleep

Low-

power

run

Low-

power

sleep

Stop

Standby

Wakeup

capability

Wakeup

capability

CPU

Flash memory

RAM

Backup registers

EEPROM

Brown-out reset

(BOR)

DMA

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