Overview
The STM32L100R8T6A is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32 L1 series. It integrates the high-performance ARM Cortex-M3 32-bit RISC core, operating at a frequency of 32 MHz (33.3 DMIPS), along with a memory protection unit (MPU) and high-speed embedded memories. The device features up to 64 Kbytes of Flash memory and up to 8 Kbytes of RAM. It also includes an extensive range of enhanced I/Os and peripherals connected to two APB buses, making it suitable for a wide range of applications requiring low power consumption and high performance.
Key Specifications
| Parameter | Value |
|---|---|
| Core | ARM Cortex-M3 32-bit CPU |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 64 Kbytes |
| RAM | Up to 8 Kbytes |
| Power Supply | 1.8 V to 3.6 V |
| Temperature Range | -40°C to 85°C |
| Package | LQFP 64 10x10x1.4 mm |
| I/Os | Up to 51 fast I/Os (42 I/Os 5V tolerant) |
| ADC | 12-bit ADC, up to 24 channels |
| DAC | 2 channels with output buffers |
| Timers | 6 general-purpose 16-bit timers, 2 basic timers, 2 watchdog timers |
| Communication Interfaces | 2 I²Cs, 2 SPIs, 3 USARTs, 1 USB 2.0 |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, Low-power Run)
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Ultra-low-power POR/PDR and programmable voltage detector (PVD)
- Internal clock sources: 1 to 24 MHz crystal oscillator, 32 kHz oscillator for RTC, high-speed internal 16 MHz RC, and internal multispeed low-power 65 kHz to 4.2 MHz clock
- PLL for CPU clock and USB (48 MHz)
- Pre-programmed bootloader and support for USART, serial wire debug, JTAG, and trace
- LCD Driver for up to 8x28 segments with contrast adjustment and blinking mode
- Seven DMA Controller channels and CRC calculation unit
- Rich analog peripherals including 12-bit ADC and 2 DACs
- Two ultra-low-power comparators with window mode and wakeup capability
Applications
- Medical devices
- Portable devices
- Computers and computer peripherals
- Communications and networking
- Security systems
- Sensing and instrumentation
- Metering applications
- Imaging, video, and vision systems
- Automation and process control
- Consumer electronics
Q & A
- What is the core architecture of the STM32L100R8T6A?
The STM32L100R8T6A is based on the ARM Cortex-M3 32-bit RISC core.
- What is the maximum operating frequency of the STM32L100R8T6A?
The maximum operating frequency is up to 32 MHz.
- What is the power supply range for the STM32L100R8T6A?
The device operates from a 1.8 V to 3.6 V power supply.
- What are the key power-saving modes of the STM32L100R8T6A?
The device features Standby, Stop, and Low-power Run modes.
- What communication interfaces are available on the STM32L100R8T6A?
The device includes two I²Cs, two SPIs, three USARTs, and one USB 2.0 interface.
- Does the STM32L100R8T6A support debug and development tools?
Yes, it supports serial wire debug, JTAG, and trace.
- What is the temperature range for the STM32L100R8T6A?
The device operates in the -40°C to 85°C temperature range.
- What type of package is the STM32L100R8T6A available in?
The device is available in an LQFP 64 10x10x1.4 mm package.
- Does the STM32L100R8T6A have built-in LCD driving capabilities?
Yes, it includes an LCD Driver for up to 8x28 segments.
- What are the key analog peripherals of the STM32L100R8T6A?
The device features a 12-bit ADC, two DACs, and two ultra-low-power comparators.
