STM32L452RET6 vs STM32L476RET6 对比
详细并排对比 STM32L452RET6 出自 STMicroelectronics 和 STM32L476RET6 出自 STMicroelectronics。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
STMicroelectronics
STM32L452RET6 - Ultra-Low-Power Cortex-M4 MCU 80MHz 512KB | ST
STM32L452RET6 ✓ 量产中STMicroelectronics
STM32L476RET6 - 80MHz ARM Cortex-M4 MCU 512KB Flash | STMicroelectronics
STM32L476RET6 ✓ 量产中规格对比
| 参数 | STM32L452RET6 | STM32L476RET6 |
|---|---|---|
| 品牌 | STMicroelectronics | STMicroelectronics |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $4.95 | $8.10 |
| Core | Arm Cortex-M4 with FPU | — |
| Maximum CPU Frequency | 80 MHz | — |
| Performance | 100 DMIPS / 273 CoreMark | 100 DMIPS (1.25 DMIPS/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 |
| 工作温度范围 | -40 C to +85 C | -40C to +85C (T6 suffix) |
| Shutdown Mode Current | 22 nA (5 wakeup pins) | — |
| VBAT Mode Current | 145 nA (RTC + 32x32-bit backup registers) | — |
| ADC | 12-bit, with hardware oversampling | 3x 12-bit, up to 5 Msps |
| DAC | 12-bit | 2x 12-bit |
| Comparators | 2 ultra-low-power | 2x ultra-low-power |
| Operational Amplifier | 1 on-chip | — |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed OTG (with internal PHY) |
| 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) | — |
| 封装 | LQFP-64 (10x10 mm) | 64-LQFP (10x10 mm) |
| 安装类型 | Surface Mount | — |
| RoHS 状态 | Compliant | Compliant |
| Core Architecture | — | ARM Cortex-M4 with FPU and DSP instructions |
| 最大时钟频率 | — | 80 MHz |
| Program Flash Memory | — | 512 KB |
| I/O Pins | — | 51 (5V-tolerant on FT pins) |
| Operational Amplifiers | — | 2x on-chip |
| 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) |