Texas Instruments MSP430F6767IPEU

Overview

MSP430F6767IPEU from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring six 24-bit sigma-delta ADCs, 25-MHz CPU with 32-bit multiplier, 256KB flash, 32KB RAM, and 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 MSP430F6767IPEU datasheet, MSP430F6767IPEU pinout, MSP430F6767IPEU application, or MSP430F6767IPEU equivalent, key selection considerations include its 128-pin LQFP (PEU) package with 90 GPIOs, ultra-low-power operation (0.18 µA in LPM4.5), integrated AES-128 encryption, and dedicated pulse outputs for active/reactive energy calibration in utility metering systems.

Technical Context

The MSP430F6767IPEU implements a dedicated metering architecture with seven independent sigma-delta modulators (six used, one reserved), supporting simultaneous three-phase plus neutral current/voltage sampling. Its SD24_B module provides differential inputs, programmable gain, and digital phase correction for CT-based sensing.

It integrates a hardware AES-128 engine, password-protected RTC with crystal offset calibration, and six eUSCI ports configurable as UART, SPI, or I²C - enabling secure AMR/AMI communication while maintaining sub-µA RTC mode (0.34 µA) and 3 µA LCD operation during AC mains failure.

Key Specifications

Pinout & Package

128-pin LQFP (PEU) package, 20 mm × 14 mm body size, 0.5 mm pitch. Pin functions validated per TI SLAS768E datasheet Section 4.1 and Table 4-3 (PEU-specific terminal mapping).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6767IPEU, the MSP430F6769IPEU adds flash headroom for complex communication stacks, while the MSP430F6767IPZ trades I/O count for compactness - both retain identical metrology performance and low-power behavior.

Availability

MSP430F6767IPEU is available at Aetrix Electronics and suitable for 3-phase electronic watt-hour meters, utility metering infrastructure, and industrial energy monitoring requiring stable component supply, long-term lifecycle support, and certified metrology performance.

Supply support for MSP430F6767IPEU 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 specializing in analog, embedded processing, and connectivity technologies with decades of utility metering domain expertise.

The MSP430F676x family was engineered specifically for revenue-grade polyphase metering - integrating metrology ADCs, secure processing, and low-power peripherals to replace multi-chip meter designs with a single SoC.

FAQ

What is the primary metrology capability of the MSP430F6767IPEU?

The MSP430F6767IPEU integrates six 24-bit sigma-delta ADCs (SD24_B) optimized for polyphase energy measurement, achieving <0.1% accuracy over 2000:1 dynamic range. It supports simultaneous sampling of three-phase currents and voltages plus neutral, with digital phase correction and temperature compensation - all required for ANSI C12.20 and IEC 62053-22 Class 0.2S compliance. The MSP430F6767IPEU executes TI's certified energy measurement software library to compute active/reactive/apparent energy, power quality metrics, and harmonic content.

Does the MSP430F6767IPEU support hardware encryption?

Yes, the MSP430F6767IPEU includes a dedicated hardware AES-128 encryption module that operates independently of the CPU, enabling secure firmware updates, encrypted data transmission, and tamper-resistant storage without impacting real-time metrology performance. This module is integral to meeting ANSI C12.22 and DLMS/COSEM security requirements. The MSP430F6767IPEU also features password-protected RTC registers and secure boot loader (BSL) access control.

What LCD configuration does the MSP430F6767IPEU support?

The MSP430F6767IPEU integrates an LCD controller supporting up to 320 segments with programmable contrast, internal charge pump, and static/multiplexed drive (up to 1/8 bias). It uses COM0–COM7 plus segment pins across Ports P1–P11 to achieve full 320-segment coverage in 128-pin LQFP (PEU) package. The MSP430F6767IPEU maintains LCD operation at 3 µA in LPM3 during mains failure, retaining critical display information without external boost circuitry.

How many communication interfaces does the MSP430F6767IPEU provide?

The MSP430F6767IPEU features six enhanced universal serial communication interfaces (eUSCI), configurable as four UARTs, six SPIs, or two I²C ports - with full pin remapping capability. This enables concurrent connections to PLC modems, RF transceivers (e.g., Sub-GHz or NB-IoT), optical ports, and metrology sensors. All interfaces support automatic baud-rate detection and low-power wakeup, and the MSP430F6767IPEU includes dedicated DMA channels to offload protocol processing from the CPU.

What is the lowest power consumption mode of the MSP430F6767IPEU?

The MSP430F6767IPEU achieves 0.18 µA in LPM4.5 (shutdown mode) with VCORE powered down and only RTC and backup RAM retained - verified at 3 V and 25°C. In LPM3.5 (RTC-only mode), it consumes 0.34 µA while maintaining calendar time, alarms, and tamper detection. These modes enable >10-day operation on CR2032 during AC mains failure. The MSP430F6767IPEU also delivers 2.1 µA in LPM3 (standby) with full RAM retention and sub-5 µs wake-up latency.