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| 型号： | STM32L152C8U6D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, QCC48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-48 |
| 文件页数： | 68/106页 |
| 文件大小： | 1417K |
| 代理商： | STM32L152C8U6D |
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Electrical characteristics
STM32L151xx, STM32L152xx
Doc ID 17659 Rev 1
Note:
For CL1 and CL2, it is recommended to use high-quality ceramic capacitors in the 5 pF to
15 pF range selected to match the requirements of the crystal or resonator (see Figure 17).
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 17.
Typical application with a 32.768 kHz crystal
6.3.6
Internal clock source characteristics
The parameters given in Table 26 are derived from tests performed under ambient
ILSE
LSE driving current
VDD = 3.3 V, VIN = VSS
TBD
A
IDD (LSE)
LSE oscillator current
consumption
VDD = 1.8 V
TBD
A
VDD = 2.4 V
TBD
VDD = 3.0 V
TBD
VDD = 3.6V
TBD
gm
Oscillator transconductance
5
A/V
tSU(LSE)
(4)
Startup time
VDD is stabilized
TBD
s
1.
Based on characterization, not tested in production.
2.
Refer to the note and caution paragraphs below the table, and to the application note AN2867 “Oscillator
design guide for ST microcontrollers”.
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;
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.
Table 25.
LSE oscillator characteristics (fLSE = 32.768 kHz)
(1) (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
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相关代理商/技术参数 |
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| STM32L152CBT6 | 功能描述:ARM微控制器 - MCU 32-Bit Arm Cortex M3 128kb LCD Ultralow 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 |
| STM32L152CBU6 | 功能描述:ARM微控制器 - MCU 32-Bit Arm Cortex M3 128kb LCD Ultralow 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 |
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| STM32L152D-EVAL | 功能描述:开发板和工具包 - ARM 32-Bit Arm Cortex M3 384K Flash Board RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
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