Texas Instruments MSP430F6775IPEUR

Overview

MSP430F6775IPEUR from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring seven 24-bit sigma-delta ADCs, 128KB flash, 16KB RAM, and <0.1% energy measurement accuracy over 2000:1 dynamic range at phase current. It supports ANSI C12.20 and IEC 62053 compliance, operates from 1.8 V to 3.6 V, and delivers ultra-low-power operation down to 0.18 µA in LPM4.5 shutdown mode.

For engineers reviewing the MSP430F6775IPEUR datasheet, MSP430F6775IPEUR pinout, MSP430F6775IPEUR application, or MSP430F6775IPEUR equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options for utility metering design validation and BOM optimization.

Technical Context

The MSP430F6775IPEUR integrates a 25-MHz MSP430 CPU with 32-bit hardware multiplier for real-time energy calculations and tariff management. Its analog front end includes dedicated SD24_B modulators per phase plus neutral, supporting CT, Rogowski coil, or shunt sensor inputs with digital phase correction and temperature-compensated energy computation.

It implements a multi-rail power architecture with AUXVCC1–AUXVCC3 for backup subsystems, independent LCD_C controller (320-segment), AES-128 encryption engine, and six eUSCI ports configurable as UART/SPI/I²C - all synchronized to a single 32.768-kHz crystal for RTC and metrology timing.

Key Specifications

Pinout & Package

128-pin LQFP (PEU) package with 20 mm × 14 mm body size, industrial temperature range (–40°C to +85°C), and 90 usable I/O pins including dedicated LCD segment outputs, pulse generation pins (PULSE_A/PULSE_R), SD24_B analog inputs (SD0P0–SD6N0), and dual-supply domains (AVCC/AVSS, DVCC/DVSS, AUXVCCx).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6775IPEUR, MSP430F6776IPEUR offers scalable firmware headroom while maintaining identical metrology performance and security features; MSP430F6765IPEUR trades neutral-channel capability for lower unit cost in simplified 3-wire deployments.

Availability

MSP430F6775IPEUR is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, and AMI endpoint node designs requiring stable component supply, long-term lifecycle support, and traceable sourcing for global utility certifications.

Supply support for MSP430F6775IPEUR 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 leader delivering analog, embedded processing, and connectivity solutions with focus on energy efficiency, reliability, and system integration.

The MSP430F6775IPEUR belongs to TI's polyphase metering SoC product line, engineered specifically for revenue-grade 3-phase watt-hour meters that demand metrology accuracy, low-power operation, and integrated security in compact form factors.

FAQ

What is the maximum dynamic range supported by the MSP430F6775IPEUR for phase current measurement?

The MSP430F6775IPEUR achieves <0.1% energy measurement accuracy over a 2000:1 dynamic range for phase current, validated per ANSI C12.20 and IEC 62053 standards. This performance is enabled by its seven 24-bit sigma-delta ADCs with programmable gain and digital phase correction - critical for detecting low-load leakage currents while maintaining precision at full-scale current.

Does the MSP430F6775IPEUR support neutral current measurement?

Yes, the MSP430F6775IPEUR supports neutral current measurement via dedicated SD3P0/SD3N0 differential inputs. This enables 4-wire star-connected metering topologies, residual current detection, and unbalanced load analysis - essential for compliance with IEC 62053-22 Class 0.2 in utility-grade installations.

What package type and pin count does the MSP430F6775IPEUR use?

The MSP430F6775IPEUR uses a 128-pin LQFP package designated as PEU, with dimensions of 20 mm × 14 mm and an industrial temperature range of –40°C to +85°C. It provides 90 general-purpose I/O pins, including LCD segment drivers, pulse outputs, and SD24_B analog inputs - all mapped in the official TI pinout diagram for the PEU variant.

How does the MSP430F6775IPEUR handle power loss during mains failure?

The MSP430F6775IPEUR enters LPM3.5 (RTC mode) consuming just 0.34 µA at 3 V, retaining RTC time and critical registers. Its auxiliary supply architecture (AUXVCC1–AUXVCC3) automatically switches to backup sources, enabling >10-year RTC operation on a CR2032 and preserving energy data in backup RAM during extended outages.

Is hardware AES-128 encryption available on the MSP430F6775IPEUR?

Yes, the MSP430F6775IPEUR includes a dedicated hardware AES-128 encryption module that operates independently of the CPU. This accelerates DLMS/COSEM secure boot, firmware signing, and encrypted data transmission - reducing latency and power consumption versus software-only implementations while meeting IEC 62055-41 cryptographic requirements.