Texas Instruments MSP430F6724AIPZ

Overview

MSP430F6724AIPZ from Texas Instruments is an ultra-low-power mixed-signal microcontroller designed for single-phase electronic watt-hour metering applications. It integrates two 24-bit sigma-delta ADCs, a 10-bit 200-ksps ADC, three 16-bit timers, four eUSCI modules (three UART/IrDA/SPI and one I²C/SPI), LCD driver supporting up to 320 segments, RTC with crystal offset calibration, and 96 KB flash/4 KB RAM in a 100-pin LQFP package.

For engineers reviewing the MSP430F6724AIPZ datasheet, MSP430F6724AIPZ pinout, MSP430F6724AIPZ application, or MSP430F6724AIPZ equivalent, key selection criteria include its dual SD24_B ADC architecture for simultaneous voltage/current measurement, auxiliary supply support for backup subsystem operation, low-power RTC modes down to 1.24 µA, and integrated metrology peripherals eliminating external signal conditioning in utility meter designs.

Technical Context

The MSP430F6724AIPZ implements a 16-bit RISC CPU with 25-MHz system clock capability and flexible power management including programmable LDO core regulation, supply supervision, and dual auxiliary power rails. Its unified clock system combines FLL stabilization, VLO/REFO internal sources, and 32-kHz crystal support for precise timing in metering applications.

Peripherals are optimized for energy measurement: two independent SD24_B converters accept differential PGA inputs for high-resolution current/voltage sensing; the 10-bit ADC provides auxiliary channel monitoring (temperature, reference); and the password-protected RTC includes temperature compensation and crystal offset calibration-critical for revenue-grade time-of-use billing accuracy.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, standard JEDEC MO-137AC footprint with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar metrology microcontroller applications.

Compared with MSP430F6723AIPZ, the MSP430F6724AIPZ provides 32 KB additional flash for enhanced metrology algorithms and communication protocol support; compared with MSP430F6725AIPZ, it trades 32 KB flash for lower unit cost while retaining identical metrology performance and pin compatibility-making it optimal for cost-sensitive Class 0.5 meters.

Availability

MSP430F6724AIPZ is available at Aetrix Electronics and suitable for single-phase metering, energy monitoring gateways, and utility grid node monitors requiring stable component supply and long lifecycle support.

Supply support for MSP430F6724AIPZ 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 delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.

The MSP430F672xA product line targets precision energy measurement systems, integrating metrology-grade ADCs, RTC, and LCD drivers to reduce bill-of-materials and simplify design of revenue-grade utility meters.

FAQ

What is the maximum sampling rate supported by the SD24_B ADCs in MSP430F6724AIPZ?

The MSP430F6724AIPZ SD24_B ADCs support up to 256 kSPS aggregate throughput across both converters, with configurable conversion times from 128 to 8192 system clock cycles. At 25 MHz MCLK, this enables ≥10 kSPS per channel with oversampling for >100-dB SNR-sufficient for IEC 62053-22 Class 0.2 compliance in single-phase meters.

Does MSP430F6724AIPZ support hardware-based cryptographic acceleration?

No, the MSP430F6724AIPZ does not include dedicated cryptographic hardware. Security relies on software-implemented algorithms (e.g., AES-128) executed via the 16-bit CPU and MPY32 module. For hardware-accelerated crypto, consider TI's MSP432E4 or CC13xx families-not drop-in replacements for MSP430F6724AIPZ.

How many LCD segments can MSP430F6724AIPZ drive, and what mux configurations are supported?

The MSP430F6724AIPZ LCD_C module drives up to 320 segments in 8-mux mode using eight COM lines (COM0–COM7) and 40 SEG lines. It also supports 4-mux (160 segments), 2-mux (80 segments), and static (40 segments) configurations-all with integrated contrast control and charge pump for wide operating temperature range.

What is the function of the AUXVCC pins on MSP430F6724AIPZ?

The MSP430F6724AIPZ features three dedicated AUXVCC pins (AUXVCC1, AUXVCC2, AUXVCC3) that supply the backup subsystem-including RTC, 32-kHz oscillator, and 4×16-bit backup RAM. This isolation ensures continuous timekeeping and critical data retention even when DVCC/AVCC are removed or browned out.

Is MSP430F6724AIPZ pin-compatible with other devices in the MSP430F672xA family?

Yes, all MSP430F672xAIPZ variants (e.g., MSP430F6720AIPZ through MSP430F6726AIPZ) share identical 100-pin LQFP pinouts and electrical characteristics. Firmware and PCB designs are interchangeable across the family-only flash/RAM size and SD24_B count differ, enabling scalable metering platforms with minimal redesign effort.