MSP430F6746AIPEU — metering-grade MCU with integrated LCD drive
It belongs to the MSP430F6xx series, designed for applications that need precise analog measurement and a local display — think energy metering, process instrumentation, or medical monitors where a segment LCD shows readings directly. The part integrates a 4-channel 24-bit sigma-delta ADC for high-resolution sensor inputs, an LCD driver for driving the display without external chips, and 90 general-purpose I/O lines for control and communication.
Built-in LCD driver saves board space and BOM cost
One of the standout features on this die is the integrated LCD controller — it can drive a segment LCD panel directly, eliminating the need for a separate display driver IC. For a panel retrofit or a new meter design, that means one fewer component to source, one fewer footprint on the board, and a simpler firmware path. The peripheral set also includes a brown-out detect, POR, PWM timer, and watchdog timer, so the MCU can run a self-contained system with minimal external supervision.
The temperature grade is industrial: -40°C to 85°C, rated for outdoor enclosures, engine-bay-adjacent cabinets, or unheated utility rooms. If you are repairing a meter in the field, this part will handle the thermal swing without a hiccup.
For a storeroom keeper planning a five-year spares strategy, this part is still a safe line item — no need to squirrel away a lifetime buy today. That said, the 128-LQFP package (20x14 mm body) is a standard footprint, and the part ships in tubes, so storing a few reels dry for long-term backup is straightforward.