STM32L151C8H6TR 查看數據表（PDF） - STMicroelectronics

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STM32L151C8H6TR

Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC

STMicroelectronics 

Functional overview

STM32L151x6/8/B STM32L152x6/8/B

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

Functionalities depending on the operating power supply range

Operating power

supply range

DAC and ADC

operation

USB

Dynamic voltage

scaling range

I/O operation

VDD = 2.0 to 2.4 V

Conversion time

up to 500 Ksps

Functional(2)

Range 1,

Range 2 or

Range 3

Full speed operation

VDD = 2.4 to 3.6 V

Conversion time

up to 1 Msps

Functional(2)

Range 1,

Range 2 or

Range 3

Full speed operation

1.

The CPU

drop due

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initial

must

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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.

2. Should be USB compliant from I/O voltage standpoint, the minimum VDD is 3.0 V.

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)

8 MHz to 16 MHz (1ws)

32 kHz to 8 MHz (0ws)

2.1 MHz to 4.2 MHz (1ws)

32 kHz to 2.1 MHz (0ws)

Range 1

Range 2

Range 3

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