STM32F103XB datasheet(10/84 Pages) STMICROELECTRONICS

tên linh kiện	STM32F103XB

Giải thích chi tiết về linh kiện	Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces

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Description

STM32F103xx

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Clocks and startup

System clock selection is performed on startup, however the internal RC 8 MHz oscillator is

selected as default CPU clock on reset. An external 4-16 MHz clock can be selected and is

monitored for failure. During such a scenario, it is disabled and software interrupt

management follows. Similarly, full interrupt management of the PLL clock entry is available

when necessary (for example on failure of an indirectly used external crystal, resonator or

oscillator).

Several prescalers allow the configuration of the AHB frequency, the high-speed APB

(APB2) and the low-speed APB (APB1) domains. The maximum frequency of the AHB and

the high-speed APB domains is 72 MHz. The maximum allowed frequency of the low-speed

APB domain is 36 MHz. See Figure 2 for details on the clock tree.

Boot modes

At startup, boot pins are used to select one of three boot options:

●

Boot from User Flash

●

Boot from System Memory

●

Boot from SRAM

The boot loader is located in System Memory. It is used to reprogram the Flash memory by

using USART1. For further details please refer to AN2606.

Power supply schemes

●

VDD = 2.0 to 3.6 V: external power supply for I/Os and the internal regulator.

Provided externally through VDD pins.

●

VSSA, VDDA = 2.0 to 3.6 V: external analog power supplies for ADC, Reset blocks, RCs

and PLL. In VDD range (ADC is limited at 2.4 V).

VDDA and VSSA must be connected to VDD and VSS, respectively.

●

VBAT = 1.8 to 3.6 V: power supply for RTC, external clock 32 kHz oscillator and backup

registers (through power switch) when VDD is not present.

For more details on how to connect power pins, refer to Figure 11: Power supply scheme.

Power supply supervisor

The device has an integrated Power On Reset (POR)/Power Down Reset (PDR) circuitry. It

is always active, and ensures proper operation starting from/down to 2 V. The device

remains in reset mode when VDD is below a specified threshold, VPOR/PDR, without the need

for an external reset circuit.

The device features an embedded programmable voltage detector (PVD) that monitors the

VDD power supply and compares it to the VPVD threshold. An interrupt can be generated

when VDD drops below the VPVD and/or when VDD is higher than the VPVD 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.

Refer to Table 9: Embedded reset and power control block characteristics for the values of

VPOR/PDR and VPVD.

Số phần tương tự - STM32F103XB

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	STM32F103XB	1Mb / 67P	Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces
	STM32F103xB	1Mb / 92P	Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
	STM32F103XB	1Mb / 96P	Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
	STM32F103xB	1Mb / 105P	Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash
	STM32F103XB	1Mb / 116P	Medium-density performance line Arm®-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 com. interfaces Rev 18 March 2022

More results

Mô tả tương tự - STM32F103XB

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	STM32F103X6	1Mb / 67P	Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces
	STM32F103X4	1Mb / 80P	Low-density performance line, ARM-based 32-bit MCU with 16 or 32 KB Flash, USB, CAN, 6 timers, 2 ADCs, 6 communication interfaces
	STM32F101X6	966Kb / 64P	Access line, advanced ARM-based 32-bit MCU with Flash memory, six 16-bit timers, ADC and seven communication interfaces
	STM32F101X6	1Mb / 74P	Access line, advanced ARM-based 32-bit MCU with Flash memory, six 16-bit timers, ADC and seven communication interfaces
	STM32F103XC	1Mb / 118P	Performance line, ARM-based 32-bit MCU with up to 512 KB Flash, USB, CAN, 11 timers, 3 ADCs and 13 communication interfaces
	STM32F103VDT6	1Mb / 130P	High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces
	STM32F103XC	1Mb / 123P	High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces
	STM32F103ZCH6	1Mb / 130P	High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces
	STM32F103ZEH6	1Mb / 130P	High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces
	STM32F103RCT7	1Mb / 130P	High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces

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