MSP430F67451AIPZR — metrology-grade 16-bit MCU with integrated LCD and sigma-delta ADC
The distinguishing feature set includes a 4x24-bit sigma-delta analog-to-digital converter and a segment LCD driver — peripherals that target energy metering, instrumentation, and industrial sensor applications where precision measurement and a local display are needed.
Peripheral set — what the sigma-delta ADC and LCD controller mean for the BOM
The four 24-bit sigma-delta ADCs are the headline analog feature, designed for direct sensor interfacing in polyphase energy metering without an external AFE. The LCD driver supports up to 320 segments (4-mux), enough for a multi-line character display plus backlight control, eliminating a separate display controller IC. Connectivity options cover I²C, IrDA, LINbus, SPI, and UART/USART, giving flexibility for sensor buses and host communication in a mixed-signal control board.
62 I/O in a 100-pin LQFP — footprint and routing
The 100-LQFP (14x14 mm) package provides 62 general-purpose I/O lines, sufficient for driving a segment LCD, reading a keypad matrix, and interfacing to multiple serial peripherals without port expansion. The 0.5 mm pitch is standard for hand-assembly and rework, though the fine pitch demands careful solder-paste stencil design for volume production.