ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 139

• Manufacturer Part Number: ST7232AK2-Auto
• Description: 8-bit MCU for automotive, 16 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI
• Manufacturer: STMicroelectronics

Specifications of ST7232AK2-Auto

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators and bypass for external clock
• Four Power Saving Modes: halt, active halt, wait and slow
• Main Clock Controller With: real time base, beep and clock-out capabilities
• Two 16-bit Timers With: 2 input captures, 2 output compares, PWM and pulse generator modes

ST7232Axx-Auto
10.6
10.6.1
10.6.2
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 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.
Main features
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The block diagram is shown in
Figure 57. ADC block diagram
f
AIN0
AIN1
AINx
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
4
SPE
ED
0
1
Figure
f
ON
ADC
AD
ADCDRH
0
57.
CH3
D9
ADCDRL
CH2
D8
CH1
D7
0
CH0
D6
0
ADCCSR
D5
0
D4
Analog to digital converter
0
On-chip peripherals
D3
0
D2
0
D1
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D0