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AN3422 Datasheet(PDF) 6 Page - STMicroelectronics |
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AN3422 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 52 page STM32L1 family overview AN3422 6/52 Doc ID 018976 Rev 2 2 STM32L1 family overview The STM32L1 platform forms a strong foundation with a broad and growing portfolio. With new products addressing new applications, the complete STM32L product series now comprises three series, STM32L1 Medium-density, STM32L1 Medium-density+ and STM32L1 High-density, all dedicated to ultra low power and low voltage applications. ● STM32L1: Designed for ultra-low-power applications that are energy-aware and seek to achieve the absolute lowest power consumption. The L1 series maintains compatibility with the F1 series. – Medium-density devices are STM32L151xx and STM32L152xx microcontrollers where the Flash memory density ranges between 64 and 128 Kbyte – Medium-density+ devices are STM32L151xx, STM32L152xx and STM32L162xx microcontrollers where the Flash memory density is 256 Kbyte – High-density devices are STM32L151xx, STM32L152xx and STM32L162xx microcontrollers where the Flash memory density is 384 Kbyte The ultralow power STM32L1 Medium-density, STM32L1 Medium-density+ and STM32L1 High-density are fully pin-to-pin, software and feature compatible. Table 1. STM32L1 peripherals compatibility analysis Peripheral Medium- density Medium- density+ High- density Compatibility Comments SPI Yes Yes Yes No I2S in L1 Medium-density series WWDG Yes Yes Yes Same features IWDG Yes Yes Yes Same features DBGMCU Yes Yes Yes Same features CRC Yes Yes Yes Same features EXTI Yes Yes Yes Same features USB FS Device Yes Yes Yes Same features DMA Yes Yes Yes Same features TIM Yes Yes Yes Same features SDIO No No Yes Same features FSMC No No Yes Same features PWR Yes Yes Yes Same features RCC Yes Yes Yes Same features USART Yes Yes Yes Same features (UART4/5 are available only on High-density) |
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Similar Description - AN3422 |
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