Texas Instruments MSP430F6767AIPZR

Overview

MSP430F6767AIPZR from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility meters. It integrates six independent 24-bit sigma-delta ADCs, a 25-MHz CPU with 32-bit multiplier, 256KB flash/32KB RAM, LCD controller (320 segments), and hardware AES-128 encryption - all operating at <0.1% error over 2000:1 dynamic range per phase.

For engineers reviewing the MSP430F6767AIPZR datasheet, MSP430F6767AIPZR pinout, MSP430F6767AIPZR application, or MSP430F6767AIPZR equivalent, this device is selected for ANSI C12.20/IEC 62053-compliant smart meter designs requiring simultaneous voltage/current sampling, tamper-resistant RTC, pulse energy outputs, and ultra-low-power LPM3.5 (0.34 µA) operation during mains failure.

Technical Context

The MSP430F6767AIPZR implements a dedicated metrology subsystem with six SD24_B modulators supporting differential inputs, programmable gain, and digital phase correction for CT-based current sensing. Its analog front-end is calibrated across 40–70 Hz line frequencies using a single-point calibration, eliminating per-frequency recalibration.

Digital processing is handled by a 16-bit RISC CPU augmented with three-channel DMA, four 16-bit timers (nine capture/compare registers), six eUSCI modules (four UART/IrDA/SPI + two SPI/I²C), and integrated peripherals including RTC with crystal offset calibration, LCD_C controller, and AES-128 encryption engine - all synchronized to a common clock domain for deterministic metrology timing.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, 0.5 mm pitch. Designed for industrial meter PCBs with thermal pad grounding and split analog/digital supply routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6767AIPZR, the MSP430F6769AIPZR provides headroom for advanced firmware features and expanded sensor count, while MSP430F6767AIPZ offers identical metrology performance in standard tray packaging - making MSP430F6767AIPZR optimal for automated manufacturing of ANSI/IEC-compliant meters.

Availability

MSP430F6767AIPZR is available at Aetrix Electronics and suitable for 3-phase smart electricity meters, revenue-grade energy monitors, and anti-tamper utility metering systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MSP430F6767AIPZR 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 for industrial, automotive, and consumer applications.

The MSP430F6767AIPZR belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for high-accuracy, low-power energy measurement in smart grid infrastructure and utility-grade metering equipment.

FAQ

What is the maximum number of independent analog input channels supported by the MSP430F6767AIPZR?

The MSP430F6767AIPZR integrates six independent 24-bit sigma-delta ADC channels (SD24_B), each configurable as a differential pair. These support simultaneous sampling of voltage and current on three phases plus neutral - totaling six differential inputs (e.g., VA, VB, VC, VN, IA, IB, IC mapped across six channels). No external ADC multiplexing is required for standard 3-phase 4-wire metering.

Does the MSP430F6767AIPZR include hardware support for energy pulse generation?

Yes, the MSP430F6767AIPZR includes dedicated hardware pulse output pins (CF1 and CF2) that generate active and reactive energy pulses synchronized to internal metrology calculations. These outputs eliminate software timing jitter, support programmable pulse constants (e.g., 1000 imp/kWh), and meet ANSI C12.20 pulse accuracy requirements without CPU intervention.

What low-power modes are available on the MSP430F6767AIPZR, and what is the current draw in RTC-only mode?

The MSP430F6767AIPZR supports LPM3.5 (RTC mode) with 0.34 µA typical current draw at 3 V, retaining RTC operation, RAM contents, and register states while disabling CPU and most peripherals. This enables >1-year battery-backed timekeeping during AC mains failure - critical for uninterrupted billing and tamper-event timestamping in utility meters.

How does the MSP430F6767AIPZR ensure compliance with ANSI C12.20 and IEC 62053 standards?

The MSP430F6767AIPZR achieves ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S compliance through its six 24-bit SD24_B ADCs (<0.1% error over 2000:1 dynamic range), digital phase correction for CTs, temperature-compensated energy calculation engine, and single-point 40–70 Hz line frequency calibration - all validated in TI's Energy Measurement Design Center (EMDC) software flow.

Is the MSP430F6767AIPZR pin-compatible with other devices in the MSP430F676xA family?

Yes, the MSP430F6767AIPZR shares identical 100-pin LQFP (PZ) package, pinout, and peripheral mapping with all MSP430F676xA variants (e.g., MSP430F6765AIPZR, MSP430F6768AIPZR). Firmware and PCB designs are interchangeable across the F676x series - only flash size, RAM size, and SD24_B channel count differ, allowing scalable meter platforms with minimal layout changes.