收藏本站
参数资料
型号： STM32F205RET6TR
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
封装： 10 X 10 MM, ROHS COMPLIANT, LQFP-64
文件页数： 140/163页
文件大小： 2275K
代理商： STM32F205RET6TR
Electrical characteristics
STM32F205xx, STM32F207xx
78/163
Doc ID 15818 Rev 7
Note:
For CL1 and CL2 it is recommended to use high-quality external ceramic capacitors in the
5 pF to 15 pF range selected to match the requirements of the crystal or resonator (see
Figure 31). CL1 and CL2, are usually the same size. The crystal manufacturer typically
specifies a load capacitance which is the series combination of CL1 and CL2.
Load capacitance CL has the following formula: CL = CL1 x CL2 / (CL1 + CL2) + Cstray where
Cstray is the pin capacitance and board or trace PCB-related capacitance. Typically, it is
between 2 pF and 7 pF.
Caution:
To avoid exceeding the maximum value of CL1 and CL2 (15 pF) it is strongly recommended
to use a resonator with a load capacitance CL ≤ 7 pF. Never use a resonator with a load
capacitance of 12.5 pF.
Example: if you choose a resonator with a load capacitance of CL = 6 pF, and Cstray = 2 pF,
then CL1 = CL2 = 8 pF.
Figure 31.
Typical application with a 32.768 kHz crystal
Table 26.
LSE oscillator characteristics (fLSE = 32.768 kHz)
(1)
1.
Based on characterization, not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
RF
Feedback resistor
-
18.4
-
M
Ω
C(2)
2.
Refer to the note and caution paragraphs below the table, and to the application note AN2867 “Oscillator
design guide for ST microcontrollers”.
Recommended load capacitance
versus equivalent serial
resistance of the crystal (RS)
(3)
3.
The oscillator selection can be optimized in terms of supply current using an high quality resonator with
small RS value for example MSIV-TIN32.768kHz. Refer to crystal manufacturer for more details
RS = 30 kΩ
-
15
pF
I2
LSE driving current
VDD = 3.3 V, VIN = VSS
--
3.5
A
gm
Oscillator Transconductance
7
-
A/V
tSU(LSE)
(4)
4.
tSU(LSE) is the startup time measured from the moment it is enabled (by software) to a stabilized
32.768 kHz oscillation is reached. This value is measured for a standard crystal resonator and it can vary
significantly with the crystal manufacturer
startup time
VDD is stabilized
-
2
-
s
ai17531
OSC32_OU T
OSC32_IN
fLSE
CL1
RF
STM32F
32.768 kH z
resonator
Resonator with
integrated capacitors
Bias
controlled
gain
CL2
相关PDF资料
PDF描述
STM32F205RET6XXX 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
STM32F205RET7XXX 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
STM32F205REY6XXX 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PBGA66
STM32F205RFT6TR 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
STM32F205RFT7XXX 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP64
相关代理商/技术参数
参数描述
STM32F205REY6TR 功能描述:ARM微控制器 - MCU 32-Bit ARM Cortex 512kb 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
STM32F205RFT6 功能描述:ARM微控制器 - MCU 32BIT ARM Cortex M3 Connectivity 768kB 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
STM32F205RGT6 功能描述:ARM微控制器 - MCU 32BIT ARM Cortex M3 Connectivity 1024kB 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
STM32F205RGT6TR 功能描述:ARM微控制器 - MCU STM32F20 High-Perf M3 1Mb 120 MHz MCU 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
STM32F205RGT6V 制造商:STMicroelectronics 功能描述:MCU 32BIT CORTEX-M3 120MHZ 制造商:STMicroelectronics 功能描述:MCU 32BIT CORTEX-M3 120MHZ LQFP-64 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 120MHZ, LQFP-64 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 120MHZ, LQFP-64, Controller Family/Series:STM32F, Core Size:32bit, No. of I/O's:51, Supply Voltage Min:1.8V, Supply Voltage Max:3.6V, Digital IC Case Style:LQFP, No. of Pins:64, Program Memory Size:1MB
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*