STM8L15x系列超低功耗微控制器数据手册

1星需积分: 50 170 浏览量更新于2024-07-24 收藏 1.43MB PDF 举报

"STM8L15x系列是意法半导体（STMicroelectronics）推出的一款超低功耗的8位微控制器，适用于需要高效能和节能的嵌入式应用。这款微控制器具有32KB的闪存、256字节的数据EEPROM、实时时钟（RTC）、液晶显示（LCD）控制器、多个定时器、串行通信接口如USART、I2C和SPI，以及模数转换器（ADC）等功能。 STM8L15x系列的关键特性包括： 1. **操作条件**：工作电源范围为1.8V到3.6V，温度范围覆盖-40°C至85°C，确保了在各种环境下的稳定运行。 2. **低功耗特性**：该系列微控制器设计有5种低功耗模式，包括Wait、低功耗运行（5.1µA）、低功耗等待（3µA）、带有完整RTC的活动halt模式（1.3µA）和halt模式（350nA）。总体功耗仅为195µA/MHz加上440µA的基础电流，且每个输入/输出端口的漏电流极低，只有50nA。快速从halt模式唤醒，仅需4.7µs。 3. **先进的STM8核心**：采用哈佛架构，具有3级流水线，最大工作频率可达16MHz，提供16CISC MIPS等效性能。最多可处理40个外部中断源。 4. **复位和电源管理**：提供低功耗、安全的BOR复位，带有5个可选阈值，以及超低功耗的POR/PDR。还包含可编程电压检测器（PVD），以监测电源电压。 5. **时钟管理**：支持32kHz和1到16MHz的晶体振荡器，内置16MHz的工厂校准RC振荡器和38kHz的低功耗RC振荡器。还包括时钟安全系统，保障系统的时钟稳定性。 6. **低功耗RTC**：配备具有报警中断功能的二进制码补码（BCD）日历，能在halt模式下自动唤醒，并支持周期性中断。这些特性使得STM8L15x系列特别适合于对功耗敏感的应用，如便携式设备、物联网节点、电池供电设备和需要长时间运行的系统。通过灵活的电源管理和低功耗模式，开发人员可以优化系统性能，同时最小化能源消耗。STM8L15x的数据手册详细阐述了这些特性和更多技术参数，为开发者提供了全面的技术指南。"

Functional overview STM8L052C6

16/102 Doc ID 023331 Rev 1

3.4 Clock management

The clock controller distributes the system clock (SYSCLK) coming from different oscillators

to the core and the peripherals. It also manages clock gating for low power modes and

ensures clock robustness.

Features

● Clock prescaler: To get the best compromise between speed and current

consumption the clock frequency to the CPU and peripherals can be adjusted by a

programmable prescaler.

● Safe clock switching: Clock sources can be changed safely on the fly in run mode

through a configuration register.

● Clock management: To reduce power consumption, the clock controller can stop the

clock to the core, individual peripherals or memory.

● System clock sources: 4 different clock sources can be used to drive the system

clock:

– 1-16 MHz High speed external crystal (HSE)

– 16 MHz High speed internal RC oscillator (HSI)

– 32.768 kHz Low speed external crystal (LSE)

– 38 kHz Low speed internal RC (LSI)

● RTC and LCD clock sources: The above four sources can be chosen to clock the

RTC and the LCD, whatever the system clock.

● Startup clock: After reset, the microcontroller restarts by default with an internal

2 MHz clock (HSI/8). The prescaler ratio and clock source can be changed by the

application program as soon as the code execution starts.

● Clock security system (CSS): This feature can be enabled by software. If a HSE clock

failure occurs, the system clock is automatically switched to HSI.

● Configurable main clock output (CCO): This outputs an external clock for use by the

application.

Functional overview STM8L052C6

20/102 Doc ID 023331 Rev 1

3.11.1 TIM1 - 16-bit advanced control timer

This is a high-end timer designed for a wide range of control applications. With its

complementary outputs, dead-time control and center-aligned PWM capability, the field of

applications is extended to motor control, lighting and half-bridge driver.

● 16-bit up, down and up/down autoreload counter with 16-bit prescaler

● 3 independent capture/compare channels (CAPCOM) configurable as input capture,

output compare, PWM generation (edge and center aligned mode) and single pulse

mode output

● 1 additional capture/compare channel which is not connected to an external I/O

● Synchronization module to control the timer with external signals

● Break input to force timer outputs into a defined state

● 3 complementary outputs with adjustable dead time

● Encoder mode

● Interrupt capability on various events (capture, compare, overflow, break, trigger)

3.11.2 16-bit general purpose timers

● 16-bit autoreload (AR) up/down-counter

● 7-bit prescaler adjustable to fixed power of 2 ratios (1…128)

● 2 individually configurable capture/compare channels

● PWM mode

● Interrupt capability on various events (capture, compare, overflow, break, trigger)

● Synchronization with other timers or external signals (external clock, reset, trigger and

enable)

3.11.3 8-bit basic timer

The 8-bit timer consists of an 8-bit up auto-reload counter driven by a programmable

prescaler. It can be used for timebase generation with interrupt generation on timer overflow.

3.12 Watchdog timers

The watchdog system is based on two independent timers providing maximum security to

the applications.

3.12.1 Window watchdog timer

The window watchdog (WWDG) is used to detect the occurrence of a software fault, usually

generated by external interferences or by unexpected logical conditions, which cause the

application program to abandon its normal sequence.

3.12.2 Independent watchdog timer

The independent watchdog peripheral (IWDG) can be used to resolve processor

malfunctions due to hardware or software failures.

It is clocked by the internal LSI RC clock source, and thus stays active even in case of a

CPU clock failure.

剩余101页未读，继续阅读

农夫山泉__

粉丝: 14
资源: 33

STM8L15x系列超低功耗微控制器数据手册

stm8l15x中文参考手册,stm8l151中文资料,C,C++

STM8L15X中文参考手册.pdf.zip_STM8L _STM8L15x中文参考手册_common2dk_monkeyxu3

STM8L15X参考手册(中文).pdf

stm8l15x中文参考手册.pdf

如何理解STM8L15X系列微控制器中NRST引脚的复位功能及其配置方法？

如何通过NRST引脚配置STM8L15X系列微控制器的复位功能，以及如何在复位后将其配置为通用输出？

stm32l15xrc参考手册

STM8L15X系列微控制器中NRST引脚如何实现内部复位功能？在复位过程中如何对NRST引脚进行配置并用作通用输出？

STM32L15中文手册

如何使用STVisualProgrammer软件烧录STM8L15xR8系列单片机的固件？请详细介绍整个烧录过程。

最新资源