STM32F101X4 datasheet(2/73 Pages) STMICROELECTRONICS

Part #	STM32F101X4

Description	Low-density access line, ARM-based 32-bit MCU with 16 or 32 KB Flash, 5 timers, ADC and 4 communication interfaces

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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2 / 73 page

Contents

STM32F101x4, STM32F101x6

2/73

Doc ID 15058 Rev 3

Contents

1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1

Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2

Full compatibility throughout the family . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.3

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.3.1

ARM® Cortex™-M3 core with embedded Flash and SRAM . . . . . . . . . 14

2.3.2

Embedded Flash memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.3.3

CRC (cyclic redundancy check) calculation unit . . . . . . . . . . . . . . . . . . 14

2.3.4

Embedded SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.3.5

Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . 14

2.3.6

External interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.7

Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.8

Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.9

Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.10

Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.11

Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.12

Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.13

DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.3.14

RTC (real-time clock) and backup registers . . . . . . . . . . . . . . . . . . . . . . 17

2.3.15

Independent watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.16

Window watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.17

SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.18

General-purpose timers (TIMx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3.19

I²C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.20

Universal synchronous/asynchronous receiver transmitter (USART) . . 18

2.3.21

Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.22

GPIOs (general-purpose inputs/outputs) . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.23

ADC (analog to digital converter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3.24

Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.3.25

Serial wire JTAG debug port (SWJ-DP) . . . . . . . . . . . . . . . . . . . . . . . . . 19

3

Pinouts and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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