STM32L451RET6TR
| Parameters | |
|---|---|
| Series | STM32L4 |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 64-LQFP |
| Mfr | STMicroelectronics |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Supplier Device Package | 64-LQFP (10x10) |
| Speed | 80MHz |
| Oscillator Type | Internal |
| Core Processor | ARM® Cortex®-M4 |
| RAM Size | 160K x 8 |
| Number of I/O | 52 |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| EEPROM Size | - |
| Program Memory Type | FLASH |
| Connectivity | CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART |
| Core Size | 32-Bit Single-Core |
| Program Memory Size | 512KB (512K x 8) |
| Data Converters | A/D 16x12b; D/A 1x12b |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | STM32L451 |
| REACH Status | REACH Unaffected |
| Standard Package | 1,000 |
| ECCN | 3A991A2 |
| HTSUS | 8542.31.0001 |
STM32L451RET6TR Ultra-Low-Power ARM Cortex-M4 MCU STM32L4 Microcontroller IC
The STM32L451RET6TR is a high-efficiency, ultra-low-power 32-bit microcontroller from STMicroelectronics, built around the Arm Cortex-M4 core with a single-precision floating-point unit (FPU) and DSP extensions, operating at up to 80 MHz (100 DMIPS). It integrates 512 KB of Flash memory, 160 KB of SRAM, and a rich analog & digital peripheral set, operating from a 1.71V–3.6V supply with advanced FlexPower control for minimal energy consumption. Housed in a 64-LQFP package, it supports -40°C to +85°C operation, featuring memory protection, a 5 Msps 12-bit ADC, DAC, op-amp, CAN, UARTs, SPIs, I²Cs, and a Quad SPI interface. Optimized for battery-powered and portable designs, it balances performance, low power, and robust security for industrial, medical, and smart connected applications.
STM32L451RET6TR Key Features
● 80 MHz Cortex-M4 with FPU, DSP, MPU, ART Accelerator
● 512 KB Flash, 160 KB SRAM, Quad SPI external memory interface.
● 145 nA (Vbat), 22 nA (shutdown), 84 µA/MHz run
● 12-bit 5 Msps ADC (16-bit oversample), 12-bit DAC
Application Scenarios
1. Wearable & Portable Devices: Fitness trackers, medical sensors, and battery-powered smart gadgets.
2. Industrial Automation: PLCs, sensors, low-power controllers, and factory monitoring systems.
3. Medical Electronics: Portable diagnostics, patient monitors, and low-power therapeutic devices.
4. Smart Home & IoT: Connected sensors, smart meters, security panels, and battery-backed gateways.
5. Consumer Electronics: Remote controls, portable audio, e-paper displays, and low-power HMI.
6. Automotive (Body & Convenience): Low-power control modules, lighting, and sensor interfaces.
Alternative MCU Models
● STMicroelectronics STM32L452RET6: Pin-compatible L451 variant with USB OTG FS, ideal for designs needing USB connectivity.
● Microchip SAM L21J18B: 48 MHz Cortex-M0+ ultra-low-power MCU, 512 KB Flash/192 KB RAM for cost-sensitive low-power apps.
● NXP Kinetis KL82Z128VLH7: 72 MHz Cortex-M0+ with 128 KB Flash, low-power analog, and rich communication for portable designs.
● TI MSP432P401R: 48 MHz Cortex-M4F with 256 KB Flash, ultra-low-power, 14-bit ADC, and AES security for industrial sensors.
● Renesas RL78/G13: 8/16-bit low-power MCU, 512 KB Flash, excellent power efficiency for legacy and cost-optimized embedded systems.
