What this STM32L496ZGT3 brings to the board
It's built for applications that need a balance of processing throughput and energy efficiency — think industrial sensor nodes, portable medical devices, and connected field instruments where every microamp matters. The 144-LQFP package gives you 115 I/O lines, so you're not starved for pins when interfacing to displays, external memory, or a bank of sensors.
Memory and peripheral headroom
With 1 MB of Flash you've got room for a full application stack plus a bootloader and over-the-air update staging area. The 320 KB SRAM handles moderate-size data buffers and a real-time OS without thrashing. The connectivity set covers CANbus, USB OTG, QSPI for external Flash, and multiple I²C/SPI/UART interfaces — enough to tie together a multi-sensor hub or a motor drive with fieldbus.
The 125°C ceiling means you don't need to derate for self-heating near the maximum junction temperature.