Texas Instruments MSP430F6765AIPEUR

Overview

MSP430F6765AIPEUR from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility meters. It integrates six 24-bit sigma-delta ADCs, a 25-MHz CPU with 32-bit multiplier, 128KB flash, 16KB RAM, LCD controller (320 segments), AES-128 encryption, and RTC with tamper detection - enabling ANSI C12.20/IEC 62053-compliant metering with <0.1% error over 2000:1 dynamic range.

For engineers reviewing the MSP430F6765AIPEUR datasheet, MSP430F6765AIPEUR pinout, MSP430F6765AIPEUR application, or MSP430F6765AIPEUR equivalent, key selection criteria include its 128-pin LQFP package, six SD24_B ADC channels, ultra-low-power LPM3.5 mode (0.34 µA), dedicated pulse outputs for active/reactive energy calibration, and support for current transformers, Rogowski coils, and shunt sensors in 3-phase 4-wire star configurations.

Technical Context

The MSP430F6765AIPEUR implements a metrology-specific signal chain: six independent 24-bit sigma-delta modulators feed dedicated digital filters and metrology calculation engines, while the 10-bit SAR ADC handles auxiliary measurements (supply voltage, temperature). Its real-time clock operates in LPM3.5 with crystal offset calibration and temperature compensation to maintain timekeeping accuracy during mains failure.

Digital subsystems include three-channel DMA, four 16-bit timers (nine capture/compare registers), six eUSCI modules (four UART/IrDA/SPI, two SPI/I²C), and hardware AES-128 for secure firmware updates and data encryption - all coordinated by the 25-MHz CPU executing TI's Energy Measurement Software Library for ANSI/IEC-compliant kWh, kVARh, and power quality calculations.

Key Specifications

Pinout & Package

Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, 0.5 mm pitch, 90 GPIOs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6765AIPZ, the MSP430F6765AIPEUR provides 28 additional GPIOs for expanded LCD drive capability and more flexible peripheral routing; compared with MSP430F6766AIPEUR, it trades 128 KB less flash for lower unit cost where basic metrology functionality suffices.

Availability

MSP430F6765AIPEUR is available at Aetrix Electronics and suitable for 3-phase electronic watt-hour meters, smart grid distribution monitors, and industrial energy panels requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-certified designs.

Supply support for MSP430F6765AIPEUR 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 analog ICs.

The MSP430F6765AIPEUR belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for revenue-grade energy measurement in smart meters and grid-edge devices - integrating metrology ADCs, security, and ultra-low-power operation in a single SoC.

FAQ

What metrology standards does the MSP430F6765AIPEUR meet?

The MSP430F6765AIPEUR meets or exceeds ANSI C12.20 and IEC 62053-21/-22 standards for active and reactive energy measurement. Its <0.1% accuracy over 2000:1 dynamic range, 40–70 Hz line frequency support, and temperature-compensated design enable Class 0.2 meter certification. The device's dedicated pulse outputs and digital phase correction further align with utility testing requirements defined in these standards.

How many analog input channels does the MSP430F6765AIPEUR support for energy measurement?

The MSP430F6765AIPEUR supports six independent 24-bit sigma-delta ADC channels (SD24_B) for primary metrology inputs - sufficient for simultaneous sampling of three-phase voltages and currents plus neutral current in 3-phase 4-wire systems. Additionally, its 10-bit SAR ADC provides six external channels for auxiliary measurements such as supply voltage, temperature, and reference monitoring - all accessible without compromising metrology throughput.

What is the lowest power-consumption mode available on the MSP430F6765AIPEUR?

The MSP430F6765AIPEUR achieves 0.34 µA in RTC mode (LPM3.5) at 3 V, retaining real-time clock operation and critical register states while disabling CPU, flash, and most peripherals. This mode enables >1-year operation from a 22 mAh coin cell or supercapacitor during AC mains failure - a key requirement for tamper-evident timekeeping and event logging in utility meters.

Does the MSP430F6765AIPEUR include hardware security features?

Yes, the MSP430F6765AIPEUR integrates hardware AES-128 encryption for secure firmware updates and data protection, password-protected RTC with physical tamper detection (including pin-state monitoring and timestamped log entries), and secure bootloader (BSL) with configurable access restrictions. These features satisfy utility requirements for firmware integrity, time-stamp authenticity, and resistance to physical and logical attacks in deployed meters.

What development tools are supported for the MSP430F6765AIPEUR?

Texas Instruments provides the Energy Measurement Design Center (EMDC) software for configuring metrology parameters, auto-generating calibration code, and visualizing results; the EVM430-F6779 three-phase evaluation module for rapid prototyping; and the MSP-TS430PEU128 target board for 128-pin LQFP debugging. All tools support the MSP430F6765AIPEUR directly via TI's Energy Measurement Software Library and MSP430Ware driver suite.