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ST72324BJ2 Datasheet(PDF) 123 Page - STMicroelectronics

Part # ST72324BJ2
Description  8-bit MCU, 3.8 to 5.5 V operating range with 8 to 32 Kbyte Flash/ROM, 10-bit ADC, 4 timers, SPI, SCI
PDF  188 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72324BJ2 Datasheet(HTML) 123 Page - STMicroelectronics

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ST72324B
On-chip peripherals
123/188
10.6
10-bit A/D converter (ADC)
10.6.1
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 16
multiplexed analog input channels (refer to device pin out description) that allow the
peripheral to convert the analog voltage levels from up to 16 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.
10.6.2
Main features
●
10-bit conversion
●
Up to 16 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 61.
Figure 61.
ADC block diagram
CH2
CH1
EOC SPEED ADON
0
CH0
ADCCSR
AIN0
AIN1
Analog to Digital
Converter
AINx
Analog
MUX
D4
D3
D5
D9
D8
D7
D6
D2
ADCDRH
4
Div 4
fADC
fCPU
D1
D0
ADCDRL
0
1
00
0
0
0
0
CH3
Div 2



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