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STM32L151x8 Datasheet(PDF) 16 Page - STMicroelectronics

No. de pieza STM32L151x8
Descripción Electrónicos  Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC
PDF  133 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L151x8 Datasheet(HTML) 16 Page - STMicroelectronics

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Functional overview
STM32L151x6/8/B STM32L152x6/8/B
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DocID17659 Rev 12
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 frequency changes from initial to final must respect "FCPU initial < 4*FCPU final" to limit VCORE
drop due to current consumption peak when frequency increases. 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.
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)
Range 1
8 MHz to 16 MHz (1ws)
32 kHz to 8 MHz (0ws)
Range 2
2.1 MHz to 4.2 MHz (1ws)
32 kHz to 2.1 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
DAC and ADC
operation
USB
Dynamic voltage
scaling range
I/O operation



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