STMicroelectronics STM32L151RBT7ATR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $15.87 | $15.87 |
| 15+ | $3.65 | $54.75 |
| 25+ | $3.57 | $89.25 |
| 50+ | $3.37 | $168.50 |
| 100+ | $2.98 | $298.00 |
| N+ | $0.60 | 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 | 128KB (128K 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 ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-LQFP (10x10) |
| Package / Case | 64-LQFP |
| ROHS |
The STM32L151RBT7A from STMicroelectronics is a low-power ARM Cortex-M3 microcontroller running at 32MHz. It features 128KB of flash and 32KB of RAM, with a supply range of 1.8V to 3.6V. Integrated peripherals include capacitive sensing, DMA, I2S, PWM, and brown-out detection, making it ideal for energy-conscious industrial and consumer applications.
- Integrated Cap Sense: Eliminates external touch controllers, saving BOM cost and PCB area.
- High-Temperature Rating: Operates up to 105°C, suitable for demanding industrial environments.
- Rich Peripheral Set: I2S, DMA, and PWM enable complex audio and motor control applications.
- Low-Power Design: Optimized for battery-powered devices with multiple low-power modes.
Touch-Sensitive Control Panels
The integrated capacitive sensing (Cap Sense) eliminates external touch ICs, reducing cost in white goods and industrial HMI panels.
Battery-Powered Data Loggers
Low-power Cortex-M3 with 128KB flash stores extended logs, while 32KB RAM buffers sensor data before writing to external memory.
Audio Processing for IoT Devices
The I2S interface enables direct connection to audio codecs for voice-controlled smart speakers or sound detection systems.
Precision Industrial Sensors
With -40°C to 105°C operation and robust brown-out detection, it suits harsh factory floor environments for pressure or flow sensors.
Medical Infusion Pumps
DMA and PWM allow precise motor control for peristaltic pumps, while the wide temperature range ensures reliability in clinical settings.
Smart Building HVAC Controllers
Cap Sense for user input, PWM for fan speed control, and I2S for optional voice alerts make it a complete HVAC solution.
- Q: What is the core processor of the STM32L151RBT7A?
- A: It uses an ARM Cortex-M3 core at 32MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 3.6V.
- Q: How much flash and RAM does it have?
- A: It provides 128KB of flash and 32KB of RAM.
- Q: What package is available?
- A: It comes in a 64-pin LQFP package.
- Q: What special features are included?
- A: It includes capacitive sensing, DMA, I2S, PWM, and brown-out detection.
- Q: What is the core processor of the STM32L151RBT7A?
- A: It uses an ARM Cortex-M3 core at 32MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 3.6V.
- Q: How much flash and RAM does it have?
- A: It provides 128KB of flash and 32KB of RAM.
- Q: What package is available?
- A: It comes in a 64-pin LQFP package.
- Q: What special features are included?
- A: It includes capacitive sensing, DMA, I2S, PWM, and brown-out detection.

STM32L151RBT7ATR.pdf