STM32F372CCT6 STMicroelectronics, STM32F372CCT6 Datasheet - Page 17

• Manufacturer Part Number: STM32F372CCT6
• Description: ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
• Manufacturer: STMicroelectronics

Specifications of STM32F372CCT6

• Product Category: ARM Microcontrollers - MCU
• Rohs: yes
• Core: ARM Cortex M4F
• Processor Series: STM32F372xx
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 72 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.4 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-48
• Mounting Style: SMD/SMT
• A/d Bit Size: 16 bit
• A/d Channels Available: 1
• Interface Type: CAN, I2C, SPI, USART, USB
• Length: 7 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 36
• Number Of Timers: 2
• On-chip Dac: Yes
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.4 V

STM32F37x
3.12
3.12.1
3.12.2
3.12.3
12-bit analog-to-digital converter (ADC)
The 12-bit analog-to-digital converter is based on a successive approximation register
(SAR) architecture. It has up to 16 external channels (AIN15:0) and 3 internal channels
(temperature sensor, voltage reference, V
conversions in single-shot or scan modes. In scan mode, automatic conversion is performed
on a selected group of analog inputs.
The ADC can be served by the DMA controller.
An analog watchdog feature allows very precise monitoring of the converted voltage of one,
some or all selected channels. An interrupt is generated when the converted voltage is
outside the programmed thresholds.
The events generated by the timers (TIMx) can be internally connected to the ADC start and
injection trigger, respectively, to allow the application to synchronize A/D conversion and
timers.
Temperature sensor
The temperature sensor (TS) generates a voltage V
temperature.
The temperature sensor is internally connected to the ADC_IN16 input channel which is
used to convert the sensor output voltage into a digital value.
The sensor provides good linearity but it has to be calibrated to obtain good overall accuracy
of the temperature measurement. As the offset of the temperature sensor varies from chip
to chip due to process variation, the uncalibrated internal temperature sensor is suitable for
applications that detect temperature changes only.
To improve the accuracy of the temperature sensor measurement, each device is
individually factory-calibrated by ST. The temperature sensor factory calibration data are
stored by ST in the system memory area, accessible in read-only mode. See
Temperature sensor calibration values on page
Internal voltage reference (V
The internal voltage reference (V
ADC and Comparators. V
precise voltage of V
test and stored in the system memory area. It is accessible in read-only mode.
V
This embedded hardware feature allows the application to measure the V
using the internal ADC channel ADC_IN18. As the V
and thus outside the ADC input range, the V
As a consequence, the converted digital value is half the V
BAT
battery voltage monitoring
REFINT
REFINT
is individually measured for each part by ST during production
Doc ID 022691 Rev 3
is internally connected to the ADC_IN17 input channel. The
REFINT
REFINT
) provides a stable (bandgap) voltage output for the
BAT
BAT
)
voltage measurement) performing
103.
pin is internally connected to a divider by 2.
SENSE
BAT
voltage may be higher than V
that varies linearly with
BAT
voltage.
Functional overview
BAT
battery voltage
Table 65:
17/128
DDA
,