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ST公司的STM32F103RB是ARM 32位Cortex-M3微控制器,工作频率72MHz, 具有128kB Flash, 20kB SRAM, PLL和嵌入的内部RC振荡器8MHz与32kHz,RTOC,嵌套的中断控制器,节电模式,JTAG和SWD,3路同步的带有输入捕获,输出比较和PWM的16位计时器,16位高档计时器,2个16位看门狗计时器, SysTick计时器,有2个SPI,2个I2C,3个USART和USB 2.0全速接口, CAN 2.0B Active,以及2个12位16路ADC和块速I/O端口. STM32F103RB广泛用于马达驱动和控制,医疗社便携式设备,PC外设和GPS平台,工业控制以及告警65,视频互连和HVAC等.本文介绍了STM32F103RB的主要性能,方框图和时钟树的架构;同时还介绍了STM32F103RB评估板的性能和详细的电路图.
STM32F103x6 STM32F103x8 STM32F103xB
Performance line, ARM-based 32-bit MCU with Flash, USB, CAN, seven 16-bit timers, two ADCs and nine communication interfaces.
The STMicroelectronics STM32F103RB is an ARM 32-bit Cortex-M3 Microcontroller, 72MHz, 128kB Flash, 20kB SRAM, PLL, Embedded Internal RC 8MHz and 32kHz, Real-Time Clock, Nested Interrupt Controller, Power Saving Modes, JTAG and SWD, 3 Synch. 16-bit Timers with Input Capture, Output Compare and PWM, 16-bit 6-ch Advanced Timer, 2 16-bit Watchdog Timers, SysTick Timer, 2 SPI, 2 I2C, 3 USART, USB 2.0 Full Speed Interface, CAN 2.0B Active, 2 12-bit 16-ch A/D Converter, Fast I/O Ports.
The STM32F103xx performance line family incorporates the high-performance ARM
Cortex-M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded
memories (Flash memory up to 128Kbytes and SRAM up to 20 Kbytes), and an extensive
range of enhanced I/Os and peripherals connected to two APB buses. All devices offer two 12-bit ADCs, three general purpose 16-bit timers plus one PWM timer, as well as standard and advanced communication interfaces: up to two I2Cs and SPIs, three USARTs, an USB and a CAN.
The STM32F103xx performance line family operates from a 2.0 to 3.6 V power supply. It is available in both the −40 to +85 °C temperature range and the −40 to +105 °C extended
temperature range. A comprehensive set of power-saving mode allows to design low-power applications.
The complete STM32F103xx performance line family includes devices in 5 different
package types: from 36 pins to 100 pins. Depending on the device chosen, different sets of peripherals are included, the description below gives an overview of the complete range of peripherals proposed in this family.
STM32F103RB主要特性:
■Core: ARM 32-bit Cortex™-M3 CPU
72 MHz maximum frequency,
1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access
Single-cycle multiplication and hardware division
■Memories
32 to 128 Kbytes of Flash memory
6 to 20 Kbytes of SRAM
■Clock, reset and supply management
2.0 to 3.6 V application supply and I/Os
POR, PDR, and programmable voltage detector (PVD)
4-to-16 MHz crystal oscillator
Internal 8 MHz factory-trimmed RC
Internal 40 kHz RC
PLL for CPU clock
32 kHz oscillator for RTC with calibration
■Low power
Sleep, Stop and Standby modes
VBAT supply for RTC and backup registers
■2 x 12-bit, 1 μs A/D converters (up to 16 channels)
Conversion range: 0 to 3.6 V
Dual-sample and hold capability
Temperature sensor
■DMA
7-channel DMA controller
Peripherals supported: timers, ADC, SPIs,
I2Cs and USARTs
■Up to 80 fast I/O ports
26/37/51/80 I/Os, all mappable on 16 external interrupt vectors, all 5 V-tolerant except for analog inputs
■Debug mode
■Up to 7 timers
Up to three 16-bit timers, each with up to 4
IC/OC/PWM or pulse counter
16-bit, 6-channel advanced control timer:
up to 6 channels for PWM output, deadtime generation and emergency stop
2 watchdog timers (Independent and Window)
SysTick timer: a 24-bit downcounter
■Up to 9 communication interfaces
Up to 2 x I2C interfaces (SMBus/PMBus)
Up to 3 USARTs (ISO 7816 interface, LIN,
IrDA capability, modem control)
Up to 2 SPIs (18 Mbit/s)
CAN interface (2.0B Active)
USB 2.0 full speed interface
■Packages are ECOPACK® (RoHS compliant)
These features make the STM32F103xx performance line microcontroller family suitable for a wide range of applications:
●Motor drive and application control
●Medical and handheld equipment
●PC peripherals gaming and GPS platforms
●Industrial applications: PLC, inverters, printers, and scanners
●Alarm systems, Video intercom, and HVAC
图1.STM32F103RB方框图
图2.STM32F103RB时钟树
关于STM32F103RB的详细性能,请见:
http://www.st.com/stonline/products/literature/ds/13587.pdf
MCBSTM32 Evaluation Board
图3. MCBSTM32评估板电路图(1)
图4. MCBSTM32评估板电路图(2)
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