ST7FL15F1MAE STMICROELECTRONICS [STMicroelectronics], ST7FL15F1MAE Datasheet - Page 88
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ST7FL15F1MAE
Manufacturer Part Number
ST7FL15F1MAE
Description
8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST7FL15F1MAE.pdf
(138 pages)
- Current page: 88 of 138
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ST7L15, ST7L19
ON-CHIP PERIPHERALS (cont’d)
11.5 10-BIT A/D CONVERTER (ADC)
11.5.1 Introduction
The on-chip Analog to Digital Converter (ADC) pe-
ripheral is a 10-bit, successive approximation con-
verter with internal sample and hold circuitry. This
peripheral has up to seven multiplexed analog in-
put channels (refer to device pinout description)
that allow the peripheral to convert the analog volt-
age levels from up to seven 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.
11.5.2 Main Features
■
■
■
Figure 57. ADC Block Diagram
88/138
1
10-bit conversion
Up to 7 channels with multiplexed input
Linear successive approximation
AIN0
AIN1
AIN6
f
CPU
ANALOG
DIV 2
MUX
EOC SPEED ADON
3
0
1
ADCDRH
DIV 4
0
R
ADC
ADCDRL
D9
0
CH2
D8
SLOW
■
■
■
The block diagram is shown in
11.5.3 Functional Description
11.5.3.1 Analog Power Supply
V
ence voltage pins. In some devices (refer to device
pinout description) they are internally connected to
the V
Conversion accuracy may therefore be impacted
by voltage drops and noise in the event of heavily
loaded or badly decoupled power supply lines.
HOLD CONTROL
DDA
bit
1
0
Data register (DR) which contains the results
Conversion complete status flag
On/off bit (to reduce consumption)
CH1
D7
DD
and V
0
CH0
D6
and V
0
f
C
ADC
SSA
ADC
D5
ADCCSR
SS
0
are the high and low level refer-
pins.
D4
AMP
CAL
ANALOG TO DIGITAL
D3
SLOW
CONVERTER
D2
AMP
SEL
Figure
D1
57.
D0
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