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ST7LITE49M Folha de dados(PDF) 128 Page - STMicroelectronics

Nome de Peças ST7LITE49M
Descrição Electrónicos  8-bit MCU with single voltage Flash memory data EEPROM, ADC, 8/12-bit timers, and I²C interface
PDF  188 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITE49M Folha de dados(HTML) 128 Page - STMicroelectronics

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On-chip peripherals
ST7LITE49M
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11.5
10-bit A/D converter (ADC)
11.5.1
Introduction
The on-chip Analog to Digital Converter (ADC) peripheral is a 10-bit, successive
approximation converter with internal sample and hold circuitry. This peripheral has up to 10
multiplexed analog input channels (refer to device pin out description) that allow the
peripheral to convert the analog voltage levels from up to 7 different sources.
The result of the conversion is stored in a 10-bit Data register. The A/D converter is
controlled through a Control/Status register.
11.5.2
Main Features
●
10-bit conversion
●
Up to 7 channels with multiplexed input
●
Linear successive approximation
●
Data register (DR) which contains the results
●
Conversion complete status flag
●
On/off bit (to reduce consumption)
The block diagram is shown in Figure 59.
11.5.3
Functional description
Analog power supply
VDDA and VSSA are the high and low level reference voltage pins. In some devices (refer to
device pin out description) they are internally connected to the VDD and VSS pins.
Conversion accuracy may therefore be impacted by voltage drops and noise in the event of
heavily loaded or badly decoupled power supply lines.



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