STMicroelectronics STM32L151R8T6ATR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $13.14 | $13.14 |
| 15+ | $3.03 | $45.45 |
| 25+ | $2.96 | $74.00 |
| 50+ | $2.80 | $140.00 |
| 100+ | $2.47 | $247.00 |
| N+ | $0.49 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L1 |
| Packaging | Tape & Reel (TR) | NULL |
| Core Processor | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core |
| Speed | 32MHz |
| Connectivity | I2C, IrDA, LINbus, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, Cap Sense, DMA, I2S, POR, PWM, WDT |
| Number of I/O | 51 |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 4K x 8 |
| RAM Size | 32K 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 STM32L151R8T6ATR is a low-power ARM Cortex-M3 microcontroller from STMicroelectronics. It operates at 32MHz with 64KB flash and 32KB RAM, supporting voltages from 1.8V to 3.6V. The 64-LQFP package includes Cap Sense touch, DMA, I2S, PWM, and multiple protection features, ideal for energy-conscious embedded designs.
- Ultra-low-power architecture: 1.8V operation and multiple low-power modes extend battery life in portable devices.
- Integrated Cap Sense: Eliminates external touch controllers, reducing BOM cost and board space.
- DMA and I2S: Enables efficient data transfer and audio processing without CPU intervention.
- Robust protection: Brown-out detect, POR, and WDT ensure reliable operation in industrial environments.
Industrial Sensor Nodes
Low-power ARM Cortex-M3 core with 32MHz speed and multiple wake-up sources enables battery-powered sensor data acquisition and processing.
Portable Medical Devices
1.8V operation and low-power modes extend battery life in glucose meters and pulse oximeters while DMA handles continuous data streaming.
Building Automation Controllers
Cap Sense touch interfaces replace mechanical buttons in HVAC controls, with PWM outputs driving fan and valve actuators.
Smart Metering
64KB flash stores calibration data and communication protocols; I2S supports audio/voice alerts in utility meters.
IoT Edge Gateways
Multiple communication interfaces and DMA offload the CPU for protocol handling, while WDT ensures reliable long-term operation.
Consumer Electronics
Cap Sense and PWM enable touch-enabled dimmers and smart plugs with brown-out detection for safe power-down.
- Q: What is the operating voltage range?
- A: 1.8V to 3.6V.
- Q: What is the maximum CPU speed?
- A: 32MHz.
- Q: How much flash and RAM does it have?
- A: 64KB flash and 32KB RAM.
- Q: What package is available?
- A: 64-LQFP.
- Q: Does it support capacitive touch?
- A: Yes, it includes Cap Sense.
- Q: What is the operating voltage range?
- A: 1.8V to 3.6V.
- Q: What is the maximum CPU speed?
- A: 32MHz.
- Q: How much flash and RAM does it have?
- A: 64KB flash and 32KB RAM.
- Q: What package is available?
- A: 64-LQFP.
- Q: Does it support capacitive touch?
- A: Yes, it includes Cap Sense.

STM32L151R8T6ATR.pdf