st62t25cn6 STMicroelectronics, st62t25cn6 Datasheet - Page 53
st62t25cn6
Manufacturer Part Number
st62t25cn6
Description
8-bit Mcus With A/d Converter, Two Timers, Oscillator Safeguard & Safe Reset
Manufacturer
STMicroelectronics
Datasheet
1.ST62T25CN6.pdf
(105 pages)
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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 34. ADC Block Diagram
AIN0
AIN1
AINx
EAI EOC STA PDS
PORT
MUX
f
I/O PORT
INT
DDRx
ORx
DRx
CR3
AD
OSC
OFF
ADR7 ADR6 ADR5 ADR4
9.3.2 Main Features
The block diagram is shown in
CR1
AD
DIV 12
ADR
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)
CR0
AD
ADCR
ANALOG TO DIGITAL
f
ADR3
ADC
CONVERTER
ADR2 ADR1
ST6215C/ST6225C
Figure
ADR0
34.
53/105
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