STM32F101R4 STMicroelectronics, STM32F101R4 Datasheet - Page 67

• Manufacturer Part Number: STM32F101R4
• Description: Mainstream Access line, ARM Cortex-M3 MCU with 16 Kbytes Flash, 36 MHz CPU
• Manufacturer: STMicroelectronics

Specifications of STM32F101R4

• Core: ARM 32-bit Cortex™-M3 CPU
• Peripherals Supported: timers, ADC, SPIs, I2Cs and USARTs
• Conversion Range: 0 to 3.6 V
• Systick Timer: 24-bit downcounter

STM32F101x4, STM32F101x6
Figure 33. Typical connection diagram using the ADC
1. Refer to
2. C
General PCB design guidelines
Power supply decoupling should be performed as shown in
should be ceramic (good quality). They should be placed them as close as possible to the
chip.
Figure 34. Power supply and reference decoupling
pad capacitance (roughly 7 pF). A high C
this, f
parasitic
ADC
V AIN
Table 42
represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the
should be reduced.
R AIN (1)
for the values of R
C parasitic
AINx
Doc ID 15058 Rev 5
AIN
, R
V DD
1 µF // 10 nF
parasitic
ADC
0.6 V
0.6 V
V T
V T
and C
value will downgrade conversion accuracy. To remedy
ADC
I L ±1 µA
.
V
V
Sample and hold ADC
converter
R ADC (1)
DDA
SSA
STM32F10xx4/6
Figure
C ADC (1)
converter
Electrical characteristics
12-bit
STM32F10xxx
34. The 10 nF capacitors
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