Toshiba TX03 ARM Cortex-M3 MCU — 40 MHz, 512 KB Flash, 100-LQFP
The TMPM333FDFG(C,J): It packs 78 general-purpose I/O lines, a 12-channel 10-bit ADC, and serial interfaces including I²C, SIO, and UART/USART. On-chip POR and WDT reduce external component count.
78 I/O and 12-channel 10-bit ADC — sensor-rich control
The 78 I/O pins allow direct connection to parallel LCDs, keypads, and multiple sensor arrays. The 12-channel 10-bit ADC covers analog inputs like potentiometers, thermistors, or current shunts without an external mux. Serial connectivity (I²C, SIO, UART/USART) handles peripheral expansion and debug logging.
The part is ROHS3 compliant. For new designs, this MCU is a safe choice for multi-year production without forced redesign.
For BOM planning, the active status and multiple stocking channels provide supply continuity.