STM32F101ZET6 (STMicroelectronics) is a high-density access line 32-bit microcontroller with Arm Cortex-M3 core in a 20 × 20 mm LQFP-144 package.

• 512 KB Flash and 48 KB SRAM · up to 36 MHz
• 112 I/O · 12-bit ADC (16 channels) and 2-channel 12-bit DAC
• FSMC static memory controller · 3 SPI, 2 I²C and 5 USART/UART
• 2.0 V to 3.6 V operation · industrial range −40 °C to 85 °C

Data per STMicroelectronics STM32F101xC/xD/xE datasheet.