What this 16-bit MCU brings to a metering or industrial design
The peripheral set also includes a DMA controller, an LCD driver, PWM timers, a watchdog, and brown-out detection, all wrapped in a 128-pin LQFP package with 90 I/O lines.
The sigma-delta ADC array — why this part was chosen for metering
The six 24-bit sigma-delta converters are the headline feature. They allow simultaneous sampling of voltage and current on three phases in a polyphase energy meter, with enough resolution to meet IEC 62053 class 0.5 accuracy without an external AFE. The 16-bit core handles the compute load for active/reactive power calculation, harmonic analysis, and tamper detection, while the DMA moves conversion results without CPU intervention.
There is no direct pin-compatible replacement announced by TI for this exact order code, but the MSP430F6xx family includes other 128-pin devices with similar sigma-delta ADC blocks — a design review is needed to confirm peripheral and memory match before substituting.
Package and temperature — board-fit checks
The device comes in a 128-LQFP package (20x14 mm body) with a 0.4 mm pitch — a standard footprint for industrial metering boards, but the fine pitch means the PCB fab needs a Class 3 solder mask registration for reliable assembly.