100 MHz Cortex-M4 with 128 KB flash — the firmware budget
The STM32F410RBT6TR: That 128 KB flash is the entire code and constant-data budget — after the bootloader and HAL footprint you have roughly 80 KB for the application, so a firmware image that fits in 64 KB of compiled code leaves comfortable headroom. The 32 KB SRAM splits between stack, heap, and DMA buffers; a real-time control loop with two 1 KB ADC buffers and a 4 KB communication ring buffer still leaves 26 KB for the RTOS and task stacks.
64-LQFP package — 50 GPIOs on a two-layer-friendly footprint
All 50 GPIOs are accessible on the outer rows — no hidden balls, no micro-vias. The supplier device package is 64-LQFP (10x10), and the mounting type is surface mount.
Peripheral set and data converters — what connects where
Connectivity includes I2C, SPI, UART/USART, IrDA, and LINbus — enough for sensor buses, display panels, and CAN-less serial links. The 16-channel 12-bit ADC and the single 12-bit DAC handle analog front-ends with up to 16 single-ended inputs. On the control side, the PWM timers, DMA engine, and I2S interface support motor drive waveform generation and audio codec streaming.
ROHS3 compliance and packaging options
The STM32F410RBT6TR is ROHS3 compliant — no restricted substances in the solder terminations or mold compound. The base product number is STM32F410, which covers the family of memory and package variants.