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参数资料
| 型号： | STM32L151CBT6DTR |
| 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, PQFP48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, ROHS COMPLIANT, LQFP-48 |
| 文件页数： | 67/106页 |
| 文件大小： | 1417K |
| 代理商： | STM32L151CBT6DTR |
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STM32L151xx, STM32L152xx
Electrical characteristics
Doc ID 17659 Rev 1
For CL1 and CL2, it is recommended to use high-quality external ceramic capacitors in the
5 pF to 25 pF range (typ.), designed for high-frequency applications, and selected to match
same size. The crystal manufacturer typically specifies a load capacitance which is the
series combination of CL1 and CL2. PCB and MCU pin capacitance must be included (10 pF
can be used as a rough estimate of the combined pin and board capacitance) when sizing
CL1 and CL2. Refer to the application note AN2867 “Oscillator design guide for ST
microcontrollers” available from the ST website www.st.com.
Figure 16.
HSE oscillator circuit diagram
1.
REXT value depends on the crystal characteristics.
Low-speed external clock generated from a crystal/ceramic resonator
The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on characterization
results obtained with typical external components specified in Table 25. In the application,
the resonator and the load capacitors have to be placed as close as possible to the oscillator
pins in order to minimize output distortion and startup stabilization time. Refer to the crystal
resonator manufacturer for more details on the resonator characteristics (frequency,
package, accuracy).
3.
The relatively low value of the RF resistor offers a good protection against issues resulting from use in a
humid environment, due to the induced leakage and the bias condition change. However, it is
recommended to take this point into account if the MCU is used in tough humidity conditions.
4.
Data based on characterization. Not tested in production.
5.
tSU(HSE) is the startup time measured from the moment it is enabled (by software) to a stabilized 8 MHz
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)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fLSE
Low speed external oscillator
frequency
32.768
kHz
RF
Feedback resistor
TBD
M
Ω
C(2)
Recommended load capacitance
versus equivalent serial
resistance of the crystal (RS)
(3)
RS = 30 kΩ
TBD
pF
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相关代理商/技术参数 |
参数描述 |
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| STM32L151CBT6TR | 功能描述:ARM微控制器 - MCU 32-Bit ARM Cortex 128kb Low Power 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 |
| STM32L151CBU6 | 功能描述:ARM微控制器 - MCU 32-Bit ARM Cortex 128kb Low Power 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 |
| STM32L151CBU6 | 制造商:STMicroelectronics 功能描述:IC MCU 32 BIT 128KB FLASH 48 UFQFPN |
| STM32L151CBU6A | 功能描述:IC MCU 32BIT 128KB FLASH 48QFPN 制造商:stmicroelectronics 系列:STM32L1 包装:托盘 零件状态:在售 核心处理器:ARM? Cortex?-M3 核心尺寸:32-位 速度:32MHz 连接性:I2C，IrDA，LIN，SPI，UART/USART，USB 外设:欠压检测/复位，DMA，I2S，POR，PWM，WDT I/O 数:37 程序存储容量:128KB（128K x 8） 程序存储器类型:闪存 EEPROM 容量:4K x 8 RAM 容量:32K x 8 电压 - 电源（Vcc/Vdd）:1.8 V ~ 3.6 V 数据转换器:A/D 16x12b，D/A 2x12b 振荡器类型:内部 工作温度:-40°C ~ 85°C（TA） 封装/外壳:48-UFQFN 裸露焊盘 供应商器件封装:48-UFQFPN（7x7） 标准包装:260 |
| STM32L151CBU6TR | 制造商:STMicroelectronics 功能描述:MCU 32-bit STM32L ARM Cortex M3 RISC 128KB Flash 2.5V/3.3V 48-Pin UFQFPN EP T/R 制造商:STMicroelectronics 功能描述:16/32-BITS MICROS - Tape and Reel 制造商:STMicroelectronics 功能描述:Ultra Low M3 ARM 128 Kbytes 32 MHz |
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