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| PartNumber | STM32L4S9AII6 | STM32L4S9ZIJ6 | STM32L4S9VIT6 |
| Description | ARM Microcontrollers - MCU Ultra-low-power with FPU ARM Cortex-M4 MCU 120 MHz with 2048 kbytes Flash, USB OTG, DFSDM, LCD-TFT, MIPI DSI, AES-256, HASH | ARM Microcontrollers - MCU Ultra-low-power with FPU ARM Cortex-M4 MCU 120 MHz with 2048 kbytes Flash, USB OTG, DFSDM, LCD-TFT, MIPI DSI, AES-256, HASH | ARM Microcontrollers - MCU Ultra-low-power with FPU ARM Cortex-M4 MCU 120 MHz with 2048 kbytes Flash, USB OTG, DFSDM, LCD-TFT, MIPI DSI, AES-256, HASH |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | UFBGA-169 | UFBGA-144 | LQFP-100 |
| Series | STM32L4S9AI | STM32L4S9ZI | STM32L4S9VI |
| Core | ARM Cortex M4 | ARM Cortex M4 | ARM Cortex M4 |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 120 MHz | 120 MHz | 120 MHz |
| Program Memory Size | 2 MB | 2 MB | 2 MB |
| Data RAM Size | 640 kB | 640 kB | 640 kB |
| ADC Resolution | 12 bit | 12 bit | 12 bit |
| Number of I/Os | 131 I/O | 112 I/O | 77 I/O |
| Operating Supply Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Product | MCU+FPU | MCU+FPU | MCU+FPU |
| Program Memory Type | Flash | Flash | Flash |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Data RAM Type | SRAM | SRAM | SRAM |
| Interface Type | CAN, I2C, LPUART, SAI, SPI, UART, USART, USB OTG FS | CAN, I2C, LPUART, SAI, SPI, UART, USART, USB OTG FS | CAN, I2C, LPUART, SAI, SPI, UART, USART, USB OTG FS |
| Analog Supply Voltage | 1.62 V to 3.6 V, 1.8 V to 3.6 V | 1.62 V to 3.6 V, 1.8 V to 3.6 V | 1.62 V to 3.6 V, 1.8 V to 3.6 V |
| DAC Resolution | 2 x 12 bit | 2 x 12 bit | 2 x 12 bit |
| I/O Voltage | 1.08 V to 3.6 V | 1.08 V to 3.6 V | 1.08 V to 3.6 V |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 14 Channel | 16 Channel | 14 Channel |
| Number of Timers/Counters | 16 Timer | 16 Timer | 16 Timer |
| Processor Series | STM32L4S9 | STM32L4S9 | STM32L4S9 |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 2496 | 1008 | 540 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage Min | 1.71 V | 1.71 V | 1.71 V |
| Watchdog Timers | Watchdog Timer, Windowed | Watchdog Timer, Windowed | Watchdog Timer, Windowed |
