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ST6201BMC View Datasheet(PDF) - STMicroelectronics

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ST6201BMC Datasheet PDF : 96 Pages
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ST6200CM-Auto/ ST6201CM-Auto/ST6203CM-Auto
9.3 A/D CONVERTER (ADC)
9.3.1 Introduction
The on-chip Analog to Digital Converter (ADC) pe-
ripheral is a 8-bit, successive approximation con-
verter. This peripheral has multiplexed analog in-
put channels (refer to device pin out description)
that allow the peripheral to convert the analog volt-
age levels from different sources.
The result of the conversion is stored in a 8-bit
Data Register. The A/D converter is controlled
through a Control Register.
Figure 28. ADC Block Diagram
9.3.2 Main Features
8-bit conversion
Multiplexed analog input channels
Linear successive approximation
Data register (DR) which contains the results
End of Conversion flag
On/Off bit (to reduce consumption)
Typical conversion time 70 µs (with an 8 MHz
crystal)
The block diagram is shown in Figure 28.
fINT
DIV 12
fADC
EAI
EOC STA
PDS
AD OSC
CR3 OFF
AD
CR1
AD
CR0
ADCR
AIN0
AIN1
AINx
I/O PORT
PORT
MUX
ANALOG TO DIGITAL
CONVERTER
DDRx
ORx
DRx
ADR
ADR7 ADR6 ADR5 ADR4 ADR3 ADR2 ADR1 ADR0
Note: ADC not present on some devices. See device summary on page 1.
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