FRAM MCU for low-power sensing and control
The device integrates a 14-channel 12-bit ADC, 33 general-purpose I/O lines, and serial connectivity covering I²C, SPI, and UART. It operates from a 1.8 V to 3.6 V supply and is rated over the industrial temperature range of -40°C to 85°C, suiting it for factory automation, sensor nodes, portable instrumentation, and outdoor telecom equipment.
64 KB FRAM — what it means for the BOM
2 KB of on-chip RAM handles stack and temporary buffers. FRAM can be partitioned into program and data segments.
Industrial temperature and supply range
The -40°C to 85°C rating covers most industrial enclosures and outdoor installations without active cooling. The 1.8 V to 3.6 V supply range allows direct connection to a 3.6 V Li-ion cell or two alkaline cells in series, and the low-voltage floor means the MCU can stay operational as the battery discharges, extending system runtime.
Peripherals and connectivity
On-chip peripherals include brown-out detect, POR, DMA, PWM, and a watchdog timer — enough to run a small control loop without external supervisor ICs. The I²C and SPI ports handle common sensor and memory interfaces; the UART/USART modules support IrDA for wireless optical links if needed. Internal oscillator eliminates external crystal in many applications. Supports external low-frequency crystal for RTC.
Sourcing and lifecycle
Active product status from Texas Instruments. Available through independent distribution; pricing confirmed at quote.