STM32L451REI6 vs STM32L452RET6 Comparison
Detailed side-by-side comparison of STM32L451REI6 by STMicroelectronics and STM32L452RET6 by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
STMicroelectronics
STM32L451REI6 - 80MHz Cortex-M4 512KB MCU | STMicroelectronics
STM32L451REI6 ✓ ActiveSTMicroelectronics
STM32L452RET6 - Ultra-Low-Power Cortex-M4 MCU 80MHz 512KB | ST
STM32L452RET6 ✓ ActiveSpecification Comparison
| Parameter | STM32L451REI6 | STM32L452RET6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | Arm Cortex-M4 with FPU | Arm Cortex-M4 with FPU |
| Architecture | 32-bit Arm Thumb instruction set | — |
| Maximum Clock Frequency | 80 MHz | — |
| Peak Performance | 100 DMIPS | — |
| Flash Memory | 512 KB | 512 KB |
| SRAM | 160 KB | 160 KB |
| Digital Filter Sigma-Delta Modulator | Supported | — |
| Package | 64-UFBGA, 5 x 5 mm | LQFP-64 (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Power Class | Ultra-low-power | — |
| Analog Features | Supported | — |
| Audio Features | Supported | — |
| Operating Supply Voltage | [DATA_NEEDED: operating supply voltage range] | — |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | -40 C to +85 C |
| Number of I/O Pins | [DATA_NEEDED: number of I/O pins] | — |
| ADC Resolution | [DATA_NEEDED: ADC resolution] | — |
| Timers | [DATA_NEEDED: timer configuration and count] | — |
| Communication Interfaces | [DATA_NEEDED: communication interface list] | — |
| Maximum CPU Frequency | — | 80 MHz |
| Performance | — | 100 DMIPS / 273 CoreMark |
| Supply Voltage Range | — | 1.71 V to 3.6 V |
| Shutdown Mode Current | — | 22 nA (5 wakeup pins) |
| VBAT Mode Current | — | 145 nA (RTC + 32x32-bit backup registers) |
| ADC | — | 12-bit, with hardware oversampling |
| DAC | — | 12-bit |
| Comparators | — | 2 ultra-low-power |
| Operational Amplifier | — | 1 on-chip |
| USB | — | USB 2.0 Full-Speed Device |
| DFSDM | — | Yes (digital filter for sigma-delta modulators) |
| SMPS Support | — | Yes (internal step-down core supply) |
| USART/UART | — | 3 USART + 2 UART |
| SPI | — | 3 |
| I2C | — | 3 |
| CAN | — | 1 (CAN 2.0B) |
| SDMMC | — | 1 |
| Crypto | — | AES-256 hardware accelerator |
| TRNG | — | Yes (true random number generator) |
| Unique ID | — | 96-bit |
| External Memory Interface | — | FSMC (SRAM, PSRAM, NOR, NAND) |
| RoHS Status | — | Compliant |