STMicroelectronics STM32L100RBT6ATR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.51 | $8.51 |
| 15+ | $5.59 | $83.85 |
| 25+ | $5.47 | $136.75 |
| 50+ | $5.17 | $258.50 |
| 100+ | $4.56 | $456.00 |
| N+ | $0.91 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L1 |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core |
| Speed | 32MHz |
| Connectivity | I2C, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT |
| Number of I/O | 51 |
| Program Memory Size | 128KB (128K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 16K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V |
| Data Converters | A/D 20x12b; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-LQFP (10x10) |
| Package / Case | 64-LQFP |
| ROHS |
The STM32L100RBT6ATR from STMicroelectronics is a low-power ARM Cortex-M3 microcontroller designed for energy-efficient embedded control. Operating from 1.8V to 3.6V, it delivers 32MHz performance with 128KB flash and 16KB SRAM. The device integrates an LCD controller, DMA, PWM, and multiple watchdog timers, making it suitable for metering, medical, and industrial applications. Its 64-LQFP package supports compact PCB layouts while maintaining robust thermal performance.
- Ultra-low-power operation: 1.8V supply and optimized sleep modes extend battery life in portable devices.
- Integrated LCD controller: Eliminates external display driver ICs, reducing BOM cost and board space.
- High integration: DMA, PWM, and brown-out detection reduce external components and improve system reliability.
- Proven ecosystem: Full STM32 toolchain and HAL libraries accelerate firmware development.
Portable Medical Devices
The low 1.8V operation and integrated LCD controller enable compact, battery-powered glucose meters and pulse oximeters with clear displays.
Smart Meters
With 128KB flash and DMA, it efficiently handles data logging and communication protocols in gas and water meters, while the low-power modes extend battery life.
Industrial Sensors
The 32MHz Cortex-M3 core and multiple PWM channels allow precise control and signal conditioning in pressure and temperature transmitters.
Home Automation Panels
Its LCD driver and rich GPIO set make it ideal for thermostat displays and keypad interfaces, supporting multiple I/O states with brown-out protection.
Battery-Powered Data Loggers
The 16KB SRAM and DMA reduce CPU overhead, enabling continuous sensor sampling with minimal power draw in remote monitoring systems.
Access Control Systems
Integrated POR and WDT ensure reliable operation in keypads and card readers, while the wide voltage range accommodates varying power supplies.
- Q: What is the operating voltage range of the STM32L100RBT6ATR?
- A: The supply voltage range is 1.8V to 3.6V.
- Q: Does this MCU support LCD driving?
- A: Yes, it includes an LCD controller, making it suitable for display applications.
- Q: What is the maximum CPU speed?
- A: The ARM Cortex-M3 core runs at up to 32MHz.
- Q: What package is available?
- A: It comes in a 64-LQFP package.
- Q: What are the key integrated peripherals?
- A: It features DMA, PWM, watchdog timers, and brown-out detection.
- Q: What is the operating voltage range of the STM32L100RBT6ATR?
- A: The supply voltage range is 1.8V to 3.6V.
- Q: Does this MCU support LCD driving?
- A: Yes, it includes an LCD controller, making it suitable for display applications.
- Q: What is the maximum CPU speed?
- A: The ARM Cortex-M3 core runs at up to 32MHz.
- Q: What package is available?
- A: It comes in a 64-LQFP package.
- Q: What are the key integrated peripherals?
- A: It features DMA, PWM, watchdog timers, and brown-out detection.

STM32L100RBT6ATR.pdf