FRAM-based 16-bit MCU with integrated LCD drive
The MSP430FR6920IPMR: Its standout feature is the unified FRAM — non-volatile, fast-write, and low-energy — which eliminates the endurance trade-offs of Flash for data-logging and over-the-air update scenarios.
32 KB FRAM — endurance and write speed for field updates
The 32 KB FRAM (32K x 8) serves as both program memory and data storage, with write endurance far exceeding Flash or EEPROM. This matters for designs that log sensor data or accept firmware updates without wearing out the memory. Write energy per byte is also lower, which extends battery life in the sub-µA sleep modes typical of MSP430 applications. The 2K x 8 RAM handles stack and scratchpad for real-time tasks.
Peripheral set for segmented-LCD and sensor fusion
On-chip peripherals include a brown-out detect/reset, power-on reset, DMA controller, PWM timer, watchdog timer, and a segment LCD driver — the latter saves an external display controller and reduces PCB area. The 12-bit ADC with eight multiplexed channels captures analog sensor inputs directly. With 52 general-purpose I/O lines, the part can handle a keypad matrix, status LEDs, and parallel interfaces alongside the serial buses.
Package and footprint
Housed in a 64-pin LQFP (10x10 mm body), the device is a standard surface-mount package compatible with automated assembly lines. The supplier device package is 64-LQFP (10x10). No exposed thermal pad — junction-to-ambient thermal resistance is managed through the leadframe and PCB copper pour.
Lifecycle and supply position
TI continues to manufacture and support the MSP430 FRAM series, so there is no near-term obsolescence risk for production programs.