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| 型号： | STM32L151C8U6TR |
| 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： | 12/106页 |
| 文件大小： | 1417K |
| 代理商： | STM32L151C8U6TR |
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STM32L151xx, STM32L152xx
Functional overview
Doc ID 17659 Rev 1
3.1
Low power modes
The ultralow power STM32L15xxx supports dynamic voltage scaling to optimize its power
consumption in run mode. The voltage from the internal low-drop regulator that supplies the
logic can be adjusted according to the system’s maximum operating frequency and the
external voltage supply. When executing from Flash memory, the consumptions are:
●
In range 1 (VDD range limited to 2.0-3.6 V), with the CPU running at up to 32 MHz, the
consumption is: 290 A/MHz
●
In range 2 (full VDD range), with a maximum CPU frequency of 16 MHz, the
consumption is: 235 A/MHz
●
In range 3 (full VDD range), with a maximum CPU frequency limited to 4 MHz
(generated only with the multispeed internal RC oscillator clock source), the
consumption is: 200 A/MHz.
Seven low power modes are provided to achieve the best compromise between low power
consumption, short startup time and available wakeup sources:
●
Sleep mode
In Sleep mode, only the CPU is stopped. All peripherals continue to operate and can
wake up the CPU when an interrupt/event occurs. The Sleep mode power consumption
at 16 MHz is of about 1 mA with all peripherals off.
●
Low power run mode
This mode is achieved with the multispeed internal (MSI) RC oscillator set to the
minimum clock (64 kHz), execution from SRAM or Flash memory, and internal regulator
in low power mode to minimize the regulator's operating current. In the Low power run
mode, the clock frequency and the number of enabled peripherals are both limited.
The Low power run mode consumption can be as low as 10.5 A when executing code
from RAM at 32 kHz.
●
Low power sleep mode
This mode is achieved by entering the Sleep mode with the internal voltage regulator in
Low power mode to minimize the regulator’s operating current. In the Low power sleep
mode, both the clock frequency and the number of enabled peripherals are limited; a
typical example would be to have a timer running at 32 kHz.
When wakeup is triggered by an event or an interrupt, the system reverts to the run
mode with the regulator on. The Low power sleep mode consumption is as low as 4 A
when no peripheral is enabled. It is of 5 A with one timer operating at 32 kHz.
●
Stop mode (with or without RTC)
The Stop mode achieves the lowest power consumption while retaining the RAM and
register contents. All clocks in the VCORE domain are stopped, the PLL, MSI RC, HSI
RC and HSE crystal oscillators are disabled. The voltage regulator is in the low power
mode.
The device can be woken up from the Stop mode by any of the EXTI line, in 8 s. The
EXTI line source can be one of the 16 external lines, the PVD output, the RTC alarm(s),
the USB wakeup, the RTC tamper event, the RTC timestamp event, the RTC Wakeup,
the Comparator 1 event or Comparator 2 event. The Stop mode consumption with the
RTC on the LSE is of 1.3 A (at 1.8 V) and 1.6 A (at 3.0 V). The Stop mode
consumption without the RTC is of 0.5 A.
●
Standby mode (with or without RTC)
The Standby mode is used to achieve the lowest power consumption. The internal
voltage regulator is switched off so that the entire VCORE domain is powered off. The
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STM32L151CBT6 | 功能描述:ARM微控制器 - MCU 32-Bit Arm Cortex M3 128kb UltralowPower 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 |
| STM32L151CBT6A | 功能描述:IC MCU 32BIT 128KB FLASH 48LQFP 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:16K 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-LQFP 供应商器件封装:48-LQFP（7x7） 标准包装:250 |
| 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 |
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