STMicroelectronics STM8L052R8T6

The STM8L052R8T6 is a highly versatile and energy-efficient microcontroller from STMicroelectronics, widely used for various embedded systems and IoT applications. It features an extensive pinout, robust functionality, and compatibility with multiple development platforms. This article explores its pinout, available development boards, and its use in Arduino-based projects.

Table of Contents

• Overview of STM8L052R8T6
• STM8L052R8T6 Pinout
• Schematic and Circuit Design Considerations
• Development Boards for STM8L052R8T6
• STM8L052R8T6 and Arduino Projects
• STM8L052R8T6 Package and Footprint
• Sum up
• Frequently Asked Questions

Overview of STM8L052R8T6

The STM8L052R8T6 microcontroller is part of the STM8L family, which is known for its low power consumption and rich feature set. It operates on an 8-bit core and is optimized for applications requiring high integration and performance at a low cost.

Key features

Operating frequency of up to 16 MHz.

64 KB Flash memory and 4 KB SRAM.

2 KB EEPROM for non-volatile data storage.

Ultra-low-power modes for energy-efficient designs.

STM8L052R8T6 Pinout

Understanding the pinout of the STM8L052R8T6 is essential for designing circuit layouts and utilizing its full functionality. The microcontroller comes in an LQFP-64 package, offering 64 pins that provide various functions such as GPIO, ADC, UART, SPI, I2C, and more. Refer to the datasheet for a detailed breakdown of pin functions.

Pinout

STM8L052R8T6 Pinout

For complete pin mapping and configuration, consult the official reference manual.

Schematic and Circuit Design Considerations

When incorporating the STM8L052R8T6 into a project, designing an effective schematic is crucial. Consider the following design tips:

Decouple the power supply using capacitors near the VDD pins to minimize noise.

Route high-speed signals away from sensitive analog inputs to reduce interference.

Use pull-up or pull-down resistors on communication lines where required.

These best practices ensure reliable operation and reduce debugging time during hardware development.

STM8L052R8T6 Typical application Circuitry

STM8L052R8T6 Typical application Circuitry Schematics

This is the typical application circuitry for the STM8L052R8T6 ADC:

V_AIN: Analog input signal.

R_AIN & C_parasitic: Input resistance and parasitic capacitance.

Protection Diodes (VT = 0.6V): Prevent overvoltage at AINx.

Sample and Hold ADC:

R_ADC & C_ADC: Internal resistance and capacitance.

12-bit Converter: Converts analog signal to digital.

Leakage Current (I_L): ±50 nA leakage at the input.

Development Boards for STM8L052R8T6

Official Development Board Options

STMicroelectronics offers official development boards for the STM8L series, enabling rapid prototyping and testing. These boards include pre-soldered microcontrollers and necessary peripheral interfaces.

Third-Party Development Boards

The STM8L052R8T6 is also supported by third-party boards like the Blue Pill, a compact and affordable option ideal for small-scale applications. These boards often include additional features like a built-in bootloader for convenient programming.

STM8L052R8T6 and Arduino Projects

STM8L052R8T6 Arduino

Although the STM8L series is not natively compatible with the Arduino IDE, libraries like STM8duino make it possible to program STM8 microcontrollers using the familiar Arduino environment. This compatibility opens the door to a variety of projects, including:

1. Low-Power Environmental Monitor

Leverage the ultra-low-power features of the STM8L052R8T6 to build a battery-powered environmental monitor. Use I2C sensors to measure temperature, humidity, and air quality, and transmit data via UART to a central hub.

2. Home Automation Controller

Create a compact home automation controller with the STM8L052R8T6. Utilize GPIOs to control relays and sensors for smart lighting and security systems.

3. Wearable Fitness Tracker

Implement a wearable fitness tracker by combining the STM8L052R8T6 with an OLED display, accelerometer, and BLE module. Optimize the bootloader and programming to achieve maximum power efficiency.

STM8L052R8T6 Package and Footprint

Package:

STM8L052R8T6 package

Type: LQFP-64

Dimensions: 10 mm x 10 mm

Pitch: 0.5 mm

Pad Width: 0.17–0.27 mm

Pad Length: 0.45–0.75 mm

Height: Max 1.4 mm

Footprint:

STM8L052R8T6 footprint

Size: 12.7 mm x 12.7 mm

Pad Size: 0.3 mm x 1.2 mm

Pitch: 0.5 mm

Pin-to-Pin Distance: 10.3 mm

Sum up

The STM8L052R8T6 is a versatile microcontroller offering a balance of power, flexibility, and cost-effectiveness. Its comprehensive pinout, compatibility with development boards like the Blue Pill, and adaptability to Arduino projects make it a popular choice among developers. With the right design practices and a clear understanding of its capabilities, you can unlock its full potential for a variety of embedded applications. For detailed technical information, always refer to the datasheet and reference manual.

Frequently Asked Questions

What is the price of the STM8L052R8T6?

The price of the STM8L052R8T6 varies depending on the supplier and quantity. It typically ranges between $1.50 to $2.50 per unit for small quantities.

Where can I find the STM8L052R8T6 datasheet?

You can find the STM8L052R8T6 datasheet on our official website.

What are typical IoT applications?

Sensors, smart controllers, and low-power communication devices.

What is the sleep mode current of STM8L052R8T6?

It consumes 350 nA in halt mode.