STM32L451RET6 vs STM32L476RET6 Comparison
Detailed side-by-side comparison of STM32L451RET6 by STMicroelectronics and STM32L476RET6 by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
STMicroelectronics
STM32L451RET6 - Ultra-Low-Power Cortex-M4 MCU 512KB Flash | STMicroelectronics
STM32L451RET6 ✓ ActiveSTMicroelectronics
STM32L476RET6 - 80MHz ARM Cortex-M4 MCU 512KB Flash | STMicroelectronics
STM32L476RET6 ✓ ActiveSpecification Comparison
| Parameter | STM32L451RET6 | STM32L476RET6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.38 | $8.10 |
| Core | Arm Cortex-M4 with FPU | — |
| Maximum Clock Frequency | 80 MHz | 80 MHz |
| Flash Memory | 512 KB | — |
| SRAM | 160 KB | 128 KB |
| Supply Voltage Range | 1.71 V to 3.6 V | 1.7 V to 3.6 V |
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -40°C to +85°C | -40C to +85C (T6 suffix) |
| ADC Resolution | 12-bit | — |
| ADC Sample Rate | 5 MSPS | — |
| DAC Resolution | 12-bit | — |
| Number of I2C Interfaces | 4 | — |
| Number of SPI Interfaces | 3 | — |
| Number of USART/UART Interfaces | 3 USART + 1 UART + 1 LPUART | — |
| Number of Timers | 8 (including 2 advanced, 5 general-purpose, 2 basic) | — |
| RoHS Status | Compliant | Compliant |
| Core Architecture | — | ARM Cortex-M4 with FPU and DSP instructions |
| Performance | — | 100 DMIPS (1.25 DMIPS/MHz) |
| Program Flash Memory | — | 512 KB |
| I/O Pins | — | 51 (5V-tolerant on FT pins) |
| ADC | — | 3x 12-bit, up to 5 Msps |
| DAC | — | 2x 12-bit |
| Comparators | — | 2x ultra-low-power |
| Operational Amplifiers | — | 2x on-chip |
| USB | — | USB 2.0 Full-Speed OTG (with internal PHY) |
| LCD Controller | — | 8x40 / 4x44 segments |
| Timers | — | 16-/32-bit, RTC, LPTIM, SysTick |
| Communication Interfaces | — | USART/UART, I2C, SPI, SAI, CAN 2.0B, SDMMC |
| Crypto / Random | — | AES-256 hardware, TRNG |
| DMA | — | DMA1 + DMA2 (14 channels total) |
| Internal SMPS | — | Yes (external 4.7 uH inductor) |