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STM32L462RE bảng dữ liệu(PDF) 36 Page - STMicroelectronics

tên linh kiện STM32L462RE
Giải thích chi tiết về linh kiện  Ultra-low-power ARM® Cortex®-M4 32-bit MCUFPU, 100DMIPS, 512KB Flash, 160KB SRAM, analog, audio, AES
PDF  198 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32L462RE bảng dữ liệu(HTML) 36 Page - STMicroelectronics

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Functional overview
STM32L462CE STM32L462RE STM32L462VE
36/198
DocID029969 Rev 1
This digital interface supports the following features:
•
Up to two DAC output channels
•
8-bit or 12-bit output mode
•
Buffer offset calibration (factory and user trimming)
•
Left or right data alignment in 12-bit mode
•
Synchronized update capability
•
Noise-wave generation
•
Triangular-wave generation
•
Dual DAC channel independent or simultaneous conversions
•
DMA capability for each channel
•
External triggers for conversion
•
Sample and hold low-power mode, with internal or external capacitor
The DAC channels are triggered through the timer update outputs that are also connected
to different DMA channels.
3.17
Voltage reference buffer (VREFBUF)
The STM32L462xx devices embed an voltage reference buffer which can be used as
voltage reference for ADCs, DACs and also as voltage reference for external components
through the VREF+ pin.
The internal voltage reference buffer supports two voltages:
•
2.048 V
•
2.5 V
An external voltage reference can be provided through the VREF+ pin when the internal
voltage reference buffer is off.
The VREF+ pin is double-bonded with VDDA on some packages. In these packages the
internal voltage reference buffer is not available.
Figure 4. Voltage reference buffer



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