Overview
The STM32L100RBT6A is a member of the ultra-low-power STM32L100x6/8/B-A microcontroller family from STMicroelectronics. This device integrates the high-performance ARM® Cortex®-M3 32-bit RISC core, operating at a frequency of up to 32 MHz, along with a memory protection unit (MPU) and high-speed embedded memories. The microcontroller features up to 128 Kbytes of Flash memory, up to 16 Kbytes of RAM, and up to 2 Kbytes of true EEPROM. It is designed for low-power applications, offering various power-saving modes and a wide range of peripherals and communication interfaces.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 1.8 V to 3.6 V |
| Operating Temperature | -40°C to 85°C |
| Core | ARM® Cortex®-M3 32-bit CPU |
| Maximum Frequency | Up to 32 MHz |
| Flash Memory | Up to 128 Kbytes |
| RAM | Up to 16 Kbytes |
| EEPROM | Up to 2 Kbytes |
| Backup Register | 20 bytes |
| ADC | 12-bit, up to 20 channels |
| DAC | 12-bit, 2 channels with output buffers |
| Comparators | 2 ultra-low-power comparators |
| Timers | 6 x 16-bit timers, 2 x 16-bit basic timers, 2 x watchdog timers |
| Communication Interfaces | 1 x USB 2.0, 3 x USART, 2 x SPI, 2 x I2C |
| Package | 64-pin LQFP (10x10x1.4 mm) |
| Power Modes | Standby, Stop, Low-power Run, with ultra-low I/O leakage |
Key Features
- Ultra-low-power platform with various power-saving modes (Standby, Stop, Low-power Run)
- ARM® Cortex®-M3 32-bit CPU with up to 32 MHz frequency and 1.25 DMIPS/MHz (Dhrystone 2.1)
- Memory protection unit (MPU) and reset and supply management
- High-speed embedded memories: up to 128 Kbytes of Flash, up to 16 Kbytes of RAM, and up to 2 Kbytes of true EEPROM
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, and ultra-low-power comparators
- Extensive range of communication interfaces: USB 2.0, USART, SPI, I2C
- Up to 51 fast I/Os (42 I/Os 5V tolerant) with 16 external interrupt vectors
- LCD driver for up to 8x28 segments with contrast adjustment and blinking mode
- Pre-programmed bootloader and development support with serial wire debug, JTAG, and trace
Applications
The STM32L100RBT6A is suitable for a wide range of low-power applications, including:
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and wearables
- Automotive systems where power efficiency is critical
- IoT devices and sensor networks
Q & A
- What is the core architecture of the STM32L100RBT6A?
The core architecture is based on the ARM® Cortex®-M3 32-bit RISC CPU.
- What is the operating voltage range of the STM32L100RBT6A?
The operating voltage range is from 1.8 V to 3.6 V.
- What are the power-saving modes available in the STM32L100RBT6A?
The available power-saving modes include Standby, Stop, and Low-power Run modes.
- How much Flash memory does the STM32L100RBT6A have?
The device has up to 128 Kbytes of Flash memory.
- What types of communication interfaces are supported by the STM32L100RBT6A?
The device supports USB 2.0, USART, SPI, and I2C interfaces.
- Does the STM32L100RBT6A have an LCD driver?
Yes, it includes an LCD driver for up to 8x28 segments with contrast adjustment and blinking mode.
- What is the maximum frequency of the CPU?
The CPU operates at a maximum frequency of 32 MHz.
- Is the STM32L100RBT6A RoHS compliant?
Yes, the device is RoHS compliant with Ecopack2 packaging.
- What is the operating temperature range of the STM32L100RBT6A?
The operating temperature range is from -40°C to 85°C.
- Does the STM32L100RBT6A support serial wire debug and JTAG?
Yes, it supports serial wire debug, JTAG, and trace for development.
