Texas Instruments MSP430F6748AIPZR

Overview

MSP430F6748AIPZR from Texas Instruments is a polyphase metering SoC designed for 3-phase electricity meters, featuring four independent 24-bit sigma-delta ADCs, 512KB flash, 16KB RAM, and integrated LCD controller supporting up to 320 segments. It delivers <0.1% energy measurement accuracy over 2000:1 dynamic range and meets ANSI C12.20 and IEC 62053 standards.

For engineers reviewing the MSP430F6748AIPZR datasheet, MSP430F6748AIPZR pinout, MSP430F6748AIPZR application, or MSP430F6748AIPZR equivalent, this device is selected for high-accuracy metrology in utility-grade smart meters requiring multi-sensor support (CTs, Rogowski coils, shunts), tamper-resistant RTC, hardware AES-128 encryption, and ultra-low-power operation down to 0.18 µA in LPM4.5.

Technical Context

The MSP430F6748AIPZR integrates a 25-MHz CPU with 32-bit hardware multiplier optimized for real-time metrology calculations across three phases plus neutral. Its analog subsystem includes four SD24_B converters with differential inputs and programmable gain, plus a 10-bit SAR ADC for auxiliary measurements including supply voltage and die temperature.

Digital peripherals include three-channel DMA, four 16-bit timers (nine capture/compare registers), six eUSCI modules (four UART/IrDA/SPI-capable, two SPI/I2C-capable), and dedicated pulse output pins for active/reactive energy calibration - all operating under multiple low-power modes with sub-5-µs wake-up from LPM3.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PZ), body size 14 mm × 14 mm, 62 I/O pins. Pin functions include dedicated SD24_B analog inputs (SD0P0/SD0N0 through SD3P0/SD3N0), pulse outputs (Sx/COMx), RTC crystal connections (XIN/XOUT), and multiplexed eUSCI interfaces (UCA0–UCA3, UCB0–UCB1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6747AIPZ, the MSP430F6748AIPZR offers double the flash capacity for enhanced firmware security and calibration data retention; versus MSP430F6768AIPZ, it trades two SD24_B channels for identical flash/RAM - optimizing cost for standard 3-phase+neutral metering without auxiliary phase monitoring.

Availability

MSP430F6748AIPZR is available at Aetrix Electronics and suitable for smart electricity meters, revenue-grade submeters, and grid-edge monitoring nodes requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-certified deployments.

Supply support for MSP430F6748AIPZR 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 specializing in analog and embedded processing technologies, with leadership in low-power microcontrollers and precision metrology solutions.

The MSP430F6748AIPZR belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for ANSI/IEC-compliant energy measurement in utility, industrial, and commercial metering applications where accuracy, security, and ultra-low-power operation are mandatory.

FAQ

What is the maximum number of phases supported by the MSP430F6748AIPZR?

The MSP430F6748AIPZR supports power measurement for up to three phases plus neutral, using its four independent 24-bit sigma-delta ADCs - one per phase (A/B/C) and one for neutral current or system voltage reference. This configuration enables full 3-phase 4-wire star or delta metering with cumulative energy calculation in the MSP430F6748AIPZR firmware.

Does the MSP430F6748AIPZR include hardware encryption capabilities?

Yes, the MSP430F6748AIPZR integrates a dedicated hardware AES-128 module that performs encryption/decryption operations without CPU intervention. This enables secure firmware updates, encrypted meter data transmission, and key storage protection - all essential for compliance with utility cybersecurity mandates and IEC 62053-31 Annex D.

What LCD segment count does the MSP430F6748AIPZR support?

The MSP430F6748AIPZR includes an integrated LCD controller capable of driving up to 320 segments with programmable contrast control. It supports static, 2-, 3-, and 4-mux configurations and eliminates the need for external LCD bias generators or driver ICs - reducing bill-of-materials cost and board space in meter front-panel designs.

How does the MSP430F6748AIPZR handle line frequency variation between 50 Hz and 60 Hz grids?

The MSP430F6748AIPZR supports a 40-Hz to 70-Hz line frequency range using a single factory calibration. Its adaptive metrology engine automatically adjusts sampling rates and filtering coefficients based on detected zero-crossings - ensuring <0.1% accuracy across global utility standards without field recalibration or firmware variants.

Is the MSP430F6748AIPZR pin-compatible with other devices in the F67xxA family?

Yes, the MSP430F6748AIPZR in the 100-pin PZ package shares identical pinout and electrical characteristics with MSP430F6745AIPZ, MSP430F6746AIPZ, MSP430F6747AIPZ, and MSP430F6749AIPZ. This enables drop-in replacement within the same package variant, simplifying design reuse and qualification across different flash/RAM configurations.