Texas Instruments MSP430F6748IPEUR

Overview

MSP430F6748IPEUR from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring four 24-bit sigma-delta ADCs, 512KB flash, 16KB RAM, and <0.1% energy measurement accuracy over 2000:1 dynamic range. It integrates LCD controller (320 segments), AES-128 encryption, RTC with temperature compensation, and supports ANSI C12.20/IEC 62053 compliance in utility metering applications.

For engineers reviewing the MSP430F6748IPEUR datasheet, MSP430F6748IPEUR pinout, MSP430F6748IPEUR application, or MSP430F6748IPEUR equivalent, key selection criteria include its 128-pin LQFP package, 90 GPIOs, ultra-low-power LPM3.5 mode (0.34 µA), SD24_B ADC channel count, and dedicated pulse output pins for active/reactive energy calibration in revenue-grade meter designs.

Technical Context

The MSP430F6748IPEUR implements a 25-MHz CPU with 32-bit hardware multiplier to execute TI's energy measurement software library, performing real-time tariff management and AMR/AMI communications. Its analog front end includes four independent SD24_B modulators with differential inputs and programmable gain, plus a system 10-bit ADC for auxiliary sensing.

Power architecture features dual-domain supply (AVCC/DVCC/VCORE), automatic mains-backup switching, and auxiliary supplies (AUXVCC1–3) supporting RTC and backup subsystem operation down to 0.18 µA in LPM4.5 - enabling >10-year battery-backed retention during AC failure.

Key Specifications

Pinout & Package

Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6747IPEUR, the MSP430F6748IPEUR provides identical RAM and ADC count but doubles flash for future-proof firmware updates and advanced analytics; versus MSP430F6768IPEUR, it trades two SD24_B channels for lower system cost where four-phase measurement is unnecessary.

Availability

MSP430F6748IPEUR is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, and anti-tamper utility metering requiring stable component supply and long-term lifecycle support.

Supply support for MSP430F6748IPEUR 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 emphasis on low-power innovation and industrial reliability.

The MSP430F67xx product line is engineered specifically for revenue-grade polyphase metering, integrating metrology-grade ADCs, secure firmware execution, and ultra-low-power operation to replace discrete metering subsystems with single-chip solutions.

FAQ

What metrology standards does the MSP430F6748IPEUR comply with?

The MSP430F6748IPEUR meets or exceeds ANSI C12.20 and IEC 62053-21/-22 standards for active and reactive energy measurement accuracy. Its <0.1% error over 2000:1 dynamic range is validated using TI's certified energy measurement software library, which implements all required compensation algorithms including digital phase correction and temperature compensation - ensuring compliance without external calibration hardware.

Does the MSP430F6748IPEUR support hardware-accelerated encryption?

Yes, the MSP430F6748IPEUR includes a dedicated hardware AES-128 encryption module that operates independently of the CPU. This enables secure firmware updates, encrypted communication with head-end systems, and protection of sensitive meter data - all while maintaining deterministic real-time performance for metrology calculations. The AES engine supports ECB and CBC modes and is accessible via memory-mapped registers in the MSP430F6748IPEUR peripheral set.

How many independent sigma-delta ADC channels does the MSP430F6748IPEUR provide?

The MSP430F6748IPEUR integrates four independent 24-bit SD24_B sigma-delta ADCs with differential inputs and programmable gain (1×–128×). These channels are fully configurable for simultaneous sampling of phase currents and voltages in 3-phase 4-wire systems. Each SD24_B converter includes built-in decimation filters and supports digital phase correction - critical for achieving <0.1% accuracy with current transformers.

What is the lowest power consumption mode supported by the MSP430F6748IPEUR?

The MSP430F6748IPEUR achieves 0.18 µA in shutdown mode (LPM4.5) and 0.34 µA in RTC mode (LPM3.5) at 3 V. In LPM3.5, the device retains full RTC functionality, backup RAM, and tamper-detection circuitry - enabling >10-year battery life in sealed meters. Wake-up from LPM3.5 occurs in <5 µs, allowing rapid response to pulse events or communication interrupts without compromising metrology timing integrity.

Is the MSP430F6748IPEUR pin-compatible with other devices in the F67xx family?

Yes, the MSP430F6748IPEUR shares identical 128-pin LQFP (PEU) package, pinout, and power domain configuration with all F677x/F676x/F674x variants in the same package option (e.g., MSP430F6779IPEUR, MSP430F6768IPEUR). This enables hardware reuse across meter tiers - for example, upgrading from MSP430F6748IPEUR to MSP430F6768IPEUR requires only firmware and minor BOM changes, with no PCB redesign needed.