STM32F103ZET6

STM32F103ZET6 is the LQFP-144 ordering code for the STMicroelectronics STM32F103ZE microcontroller, listed word-for-word as Active on the orderable list of the maker’s product page and on the ST eStore page for this exact code. It is the mainstream performance line: an Arm Cortex-M3 core at 72 MHz with 512 KB of Flash memory, motor-control peripherals, USB and CAN, on a 2.0 V to 3.6 V supply, in a 20 × 20 mm LQFP-144, industrial grade over -40 °C to +85 °C. That temperature range belongs to this T6 code - the 105 °C figures quoted for this family belong to the T7 variant and are not claimed here. The selection point is the high-pin-count step of the F103 line: the 144-pin package brings out the full peripheral set for gateway, printer and industrial-control boards designed around this long-running family. Selection advice: the ZE step is defined by its 512 KB Flash and this package; same-family codes with other letters change memory size, temperature grade or both, so match the complete code when second-sourcing a mature F103 design. Parameters verified against the ST STM32F103ZE product page and the eStore listing for this exact code.