Key on-chip peripherals include a three-channel 16-bit ADC for simultaneous sampling, a direct LCD driver, DMA for data movement without CPU intervention, and a brown-out detect/reset plus POR for reliable power-up sequencing. Housed in a 100-pin LQFP package (14x14 mm body), the device provides 72 general-purpose I/O lines and operates from a 1.8 V to 3.6 V supply over the industrial temperature range of -40°C to 85°C.
Three 16-bit ADCs — designed for polyphase metering
Three independent 16-bit sigma-delta ADCs allow simultaneous sampling of voltage and current on multiple phases. This is a distinguishing feature versus many siblings that offer only a single ADC or fewer channels.
Integrated LCD driver — display without extra silicon
120 KB Flash and 4K x 8 RAM — sizing the firmware footprint
120 KB of Flash is sized for metrology algorithms, communication stacks, and a modest application layer. The 4K x 8 RAM (4 KB) supports typical data buffers and stack usage for a 16-bit MCU at 16 MHz. Designs requiring larger working memory or more code space should look at higher-density MSP430F47x variants, though this part covers the majority of single- and polyphase meter firmware loads.
For volume BOM planning, the base product number MSP430F47193 allows cross-referencing of related density and temperature variants.