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参数资料
| 型号： | STM32F105RBT7XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封装： | 10 X 10 MM, ROHS COMPLIANT, LQFP-64 |
| 文件页数： | 6/95页 |
| 文件大小： | 1007K |
| 代理商： | STM32F105RBT7XXX |
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Description
STM32F105xx, STM32F107xx
14/95
Doc ID 15274 Rev 4
2.3.6
External interrupt/event controller (EXTI)
The external interrupt/event controller consists of 20 edge detector lines used to generate
interrupt/event requests. Each line can be independently configured to select the trigger
event (rising edge, falling edge, both) and can be masked independently. A pending register
maintains the status of the interrupt requests. The EXTI can detect an external line with a
pulse width shorter than the Internal APB2 clock period. Up to 80 GPIOs can be connected
to the 16 external interrupt lines.
2.3.7
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 3-25 MHz clock can be selected, in
which case it is monitored for failure. If failure is detected, the system automatically switches
back to the internal RC oscillator. A software interrupt is generated if enabled. Similarly, full
interrupt management of the PLL clock entry is available when necessary (for example with
failure of an indirectly used external oscillator).
A single 25 MHz crystal can clock the entire system including the ethernet and USB OTG
FS peripherals. Several prescalers and PLLs 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. Refer to Figure 48: USB OTG FS +
Ethernet solution on page 89.
The advanced clock controller clocks the core and all peripherals using a single crystal or
oscillator. In order to achieve audio class performance, an audio crystal can be used. In this
case, the I2S master clock can generate all standard sampling frequencies from 8 kHz to
96 kHz with less than 0.5% accuracy error. Refer to Figure 49: USB OTG FS + I2S (Audio)
solution on page 89.
To configure the PLLs, please refer to Table 61 on page 90, which provides PLL
configurations according to the application type.
2.3.8
Boot modes
At startup, boot pins are used to select one of three boot options:
G
Boot from User Flash
G
Boot from System Memory
G
Boot from embedded SRAM
The boot loader is located in System Memory. It is used to reprogram the Flash memory by
using USART1, USART2 (remapped), CAN2 (remapped) or USB OTG FS in device mode
(DFU: device firmware upgrade). For remapped signals refer to Table 5: Pin definitions.
The USART peripheral operates with the internal 8 MHz oscillator (HSI), however the CAN
and USB OTG FS can only function if an external 8 MHz, 14.7456 MHz or 25 MHz clock
(HSE) is present.
For full details about the boot loader, please refer to AN2662.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STM32F105RCT6 | 功能描述:ARM微控制器 - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| STM32F105RCT6R | 制造商:STMicroelectronics 功能描述:16/32-BITS MICROS - Trays |
| STM32F105RCT6TR | 功能描述:ARM微控制器 - MCU 32-Bit ARM Cortex 256kb Connectivity RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| STM32F105RCT6V | 制造商:STMicroelectronics 功能描述:MCU 32BIT CORTEX-M3 72MHZ LQFP-64 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-64, Controller Family/Series:STM32F, Core Siz 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-64, Controller Family/Series:STM32F, Core Size:32bit, No. of I/O's:51, Supply Voltage Min:2V, Supply Voltage Max:3.6V, Digital IC Case Style:LQFP, No. of Pins:64, Program Memory Size:256KB |
| STM32F105RCT6W | 制造商:STMicroelectronics 功能描述:MCU 32BIT CORTEX-M3 72MHZ LQFP-64 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-64 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-64, Controller Family/Series:STM32F, Core Siz 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-64, Controller Family/Series:STM32F, Core Size:32bit, No. of I/O's:51, Supply Voltage Min:2V, Supply Voltage Max:3.6V, Digital IC Case Style:LQFP, No. of Pins:64, Program Memory Size:256KB |
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