STM32F050K4 STMicroelectronics, STM32F050K4 Datasheet - Page 12

• Manufacturer Part Number: STM32F050K4
• Description: Entry-level ARM Cortex-M0 MCU with 16 Kbytes Flash, 48 MHz CPU, motor control and CEC functions
• Manufacturer: STMicroelectronics

Specifications of STM32F050K4

• Voltage Range: 2.0 V to 3.6 V
• Conversion Range: 0 to 3.6V
• Systick Timer: 24-bit downcounter

Functional overview
3.8
3.9
3.9.1
3.9.2
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Several prescalers allow the application to configure the frequency of the AHB and the APB
domains. The maximum frequency of the AHB and the APB domains is 48 MHz.
Boot modes
At startup, the boot pin and boot selector option bit are used to select one of three boot
options:
●
●
●
The boot loader is located in System Memory. It is used to reprogram the Flash memory by
using USART1.
Power management
Power supply schemes
●
●
●
Power supply supervisors
The device has integrated power-on reset (POR) and power-down reset (PDR) circuits.
They are always active, and ensure proper operation above a threshold of 2 V. The device
remains in reset mode when the monitored supply voltage is below a specified threshold,
V
●
●
The device features an embedded programmable voltage detector (PVD) that monitors the
V
when V
threshold. The interrupt service routine can then generate a warning message and/or put
the MCU into a safe state. The PVD is enabled by software.
POR/PDR
DD
power supply and compares it to the V
Boot from User Flash
Boot from System Memory
Boot from embedded SRAM
V
Provided externally through V
V
(minimum voltage to be applied to V
The V
must be provided first.
V
registers (through power switch) when V
The POR monitors only the V
that V
The PDR monitors both the V
supply supervisor can be disabled (by programming a dedicated Option bit) to reduce
the power consumption if the application design ensures that V
equal to V
DD
DDA
BAT
DD
= 2.0 to 3.6 V: external power supply for I/Os and the internal regulator.
, without the need for an external reset circuit.
= 1.6 to 3.6 V: power supply for RTC, external clock 32 kHz oscillator and backup
= 2.0 to 3.6 V: external analog power supply for ADC, Reset blocks, RCs and PLL
DDA
DDA
drops below the V
DD
should arrive first and be greater than or equal to V
voltage level must be always greater or equal to the V
.
PVD
Doc ID 022717 Rev 2
threshold and/or when V
DD
DD
DD
supply voltage. During the startup phase it is required
and V
pins.
DDA
PVD
DDA
DD
is 2.4 V when the ADC and DAC are used).
threshold. An interrupt can be generated
supply voltages, however the V
is not present.
DD
is higher than the V
DD
DDA
.
DD
voltage level and
is higher than or
STM32F050xx
DDA
PVD
power