st72324bk STMicroelectronics, st72324bk Datasheet - Page 101

• Manufacturer Part Number: st72324bk
• Description: 3 V/5 V Range 8-bit Mcu With 4/8 Kbyte Rom, 10-bit Adc, Four Timers And Spi
• Manufacturer: STMicroelectronics

ST72323 ST72323L
9.5
9.5.1
9.5.2
10-bit A/D converter (ADC)
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 pinout 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.
Main features
●
●
●
●
●
●
The block diagram is shown in
Figure 51. ADC block diagram
AIN0
AINx
f
AIN1
CPU
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)
DIV 2
DIV 4
Analog
mux
EOC SPEEDADON
4
ADCDRH
Figure
f
ADC
SPEED
MAX
ADCDRL
51.
CH3
D9
CH2
D8
CH1
D7
0
CH0
D6
0
D5
ADCCSR
0
D4
0
On-chip peripherals
D3
Analog to digital
0
converter
D2
0
D1
101/167
D0