Mixed-signal MCU with on-chip ADC and DAC
The Texas Instruments MSP430F156IRTDR is a 16-bit MSP430 CPU16 microcontroller clocked at 8 MHz, integrating 24 KB of Flash program memory and 1 KB of RAM. On-chip data converters include an 8-channel 12-bit ADC and a 2-channel 12-bit DAC, allowing direct sensor input and analog output without external converters. The device 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, making it suitable for factory automation, remote telemetry, and portable instrumentation where low power and mixed-signal integration are required.
Peripherals and connectivity
The MSP430F156IRTDR includes a brown-out detect and reset circuit, DMA controller, POR, PWM timer, and watchdog timer. Serial interfaces cover I²C, SPI, and UART/USART, supporting common sensor and actuator communication protocols. With 48 general-purpose I/O lines in a 64-VFQFN package (9x9 mm), the part provides sufficient pin count for mixed-signal control boards without requiring port expansion.
Supply range and power budget
The 1.8 V to 3.6 V supply range allows direct operation from two alkaline cells or a single Li-ion battery. The internal oscillator eliminates the need for an external crystal in many applications, reducing BOM count. Brown-out detection and POR ensure reliable startup and operation under brownout conditions common in battery-powered or energy-harvesting designs.
Lifecycle and sourcing
The MSP430F156IRTDR carries an active product status, indicating current production with no end-of-life notice. For BOM freeze and long-term supply planning, this part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time.