Texas Instruments MSP430F67471AIPEUR

Overview

MSP430F67471AIPEUR from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring four 24-bit sigma-delta ADCs with <0.1% accuracy over 2000:1 dynamic range, 25-MHz CPU with 32-bit multiplier, 256KB flash, 32KB RAM, and LCD driver supporting up to 320 segments.

For engineers reviewing the MSP430F67471AIPEUR datasheet, MSP430F67471AIPEUR pinout, MSP430F67471AIPEUR application, or MSP430F67471AIPEUR equivalent, key selection criteria include ANSI C12.20/IEC 62053 compliance, ultra-low-power RTC mode (0.34 µA), SD24_B channel count, LQFP-128 package I/O mapping, and energy measurement library support in TI's Energy Measurement Design Center.

Technical Context

The MSP430F67471AIPEUR integrates a metrology-optimized analog front end with four independent SD24_B sigma-delta modulators for simultaneous phase/neutral current and voltage sensing, plus a 10-bit SAR ADC for auxiliary measurements including supply and temperature. Its dedicated pulse output pins support active/reactive energy calibration per ANSI/IEC standards.

Digital subsystem includes three-channel DMA, 16-bit CRC, four 16-bit timers (nine capture/compare registers total), six eUSCI modules (four UART/IrDA/SPI + two SPI/I²C), and tamper-protected RTC with crystal offset calibration - all operating across LPM3 (2.1 µA), LPM3.5 (0.34 µA), and LPM4.5 (0.18 µA) low-power modes.

Key Specifications

Pinout & Package

The MSP430F67471AIPEUR is housed in a 128-pin LQFP (PEU) package measuring 20 mm × 14 mm, with 90 general-purpose I/O pins, dedicated SD24_B analog inputs (SD0P0/SD0N0 through SD3P0/SD3N0), LCD segment/common drivers (COM0–COM7, S0–S39), and six eUSCI interface banks.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar polyphase metering applications.

Compared with MSP430F67471AIPEUR, the MSP430F67471AIPZ reduces system cost and footprint at the expense of metrology channel count and display capability, while the MSP430F67671AIPEUR offers direct pin-compatible upgrade path for enhanced sensing density without layout changes.

Availability

MSP430F67471AIPEUR is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade submetering, grid edge monitoring, and AMI endpoint applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-certified designs.

Supply support for MSP430F67471AIPEUR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company delivering analog and embedded processing solutions, with leadership in low-power microcontrollers and precision metrology ICs.

The MSP430F67471AIPEUR belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for ANSI/IEC-compliant energy measurement systems where accuracy, ultra-low-power operation, and integrated security are mandatory.

FAQ

What metrology standards does the MSP430F67471AIPEUR support?

The MSP430F67471AIPEUR meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy requirements for active and reactive energy measurement. Its four 24-bit SD24_B ADCs, digital phase correction, and temperature-compensated calculation engine ensure compliance across –40°C to 85°C and 40–70 Hz line frequencies - all validated in TI's Energy Measurement Design Center using the MSP430F67471AIPEUR reference firmware stack.

How many independent sigma-delta ADC channels does the MSP430F67471AIPEUR have?

The MSP430F67471AIPEUR integrates four independent 24-bit SD24_B sigma-delta ADCs (SD0–SD3), each with differential inputs, programmable gain, and dedicated modulator clocks. These channels support simultaneous sampling of phase A/B/C currents and neutral current or voltage, enabling full 3-phase + neutral metrology without external multiplexing - a key differentiator from lower-tier MSP430F67xx1A variants.

What is the lowest power consumption mode supported by the MSP430F67471AIPEUR?

The MSP430F67471AIPEUR achieves 0.18 µA in shutdown mode (LPM4.5) and 0.34 µA in RTC-only mode (LPM3.5) at 3 V, preserving critical timekeeping and tamper-event logging during AC mains failure. This ultra-low standby power enables >10-year coin-cell battery life for backup RTC operation - verified per SLAS983A datasheet Section 5.5 and confirmed in TI's EVM430-F6779 reference design testing.

Does the MSP430F67471AIPEUR support LCD display driving?

Yes, the MSP430F67471AIPEUR includes an integrated LCD_C peripheral supporting up to 320 segments (40 commons × 8 multiplex) with programmable contrast control and charge pump. Its COM0–COM7 and S0–S39 pins drive standard static or multiplexed LCD glass directly - eliminating external display controllers and reducing BOM cost in utility meter designs that require local human-readable output.

What communication interfaces are available on the MSP430F67471AIPEUR?

The MSP430F67471AIPEUR provides six enhanced Universal Serial Communication Interfaces (eUSCI): four eUSCI_A modules supporting UART, IrDA, and SPI for HAN, optical port, and debug; and two eUSCI_B modules supporting SPI and I²C for EEPROM, security ICs, or sensor hubs. All interfaces operate concurrently with DMA acceleration and independent clock domains - enabling simultaneous PLC modem, RF module, and local diagnostics without CPU overhead.