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STM32L151XE bảng dữ liệu(PDF) 16 Page - STMicroelectronics

tên linh kiện STM32L151XE
Giải thích chi tiết về linh kiện  Ultra-low-power 32-bit MCU Arm®-based Cortex®-M3 with 512KB Flash, 80KB SRAM, 16KB EEPROM, LCD, USB, ADC, DAC
PDF  136 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L151XE bảng dữ liệu(HTML) 16 Page - STMicroelectronics

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Functional overview
STM32L151xE STM32L152xE
16/136
DS10002 Rev 10
VDD=VDDA = 2.0 to 2.4 V
Conversion time up
to 500 Ksps
Functional(3)
Range 1, Range 2 or
Range 3
VDD=VDDA = 2.4 to 3.6 V
Conversion time up
to 1 Msps
Functional(3)
Range 1, Range 2 or
Range 3
1. The GPIO speed also depends from VDD voltage and the user has to refer to Table 44: I/O AC
characteristics for more information about I/O speed.
2. 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, the user can switch from 4.2 MHz to 16 MHz,
wait 5 µs, then switch from 16 MHz to 32 MHz.
3. Must 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
2.1MHz 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)
-
Functionalities depending on the operating power supply
range(1)
Operating power supply
range
DAC and ADC
operation
USB
Dynamic voltage scaling
range



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