Texas Instruments MSP430F6724AIPN

Overview

MSP430F6724AIPN from Texas Instruments is an ultra-low-power mixed-signal microcontroller designed for single-phase energy metering applications. It integrates two 24-bit sigma-delta ADCs, a 10-bit 200-ksps ADC, LCD driver supporting up to 320 segments in 8-mux mode, three eUSCI_A modules (UART/IrDA/SPI), one eUSCI_B module (I²C/SPI), and 96 KB flash/4 KB RAM in an 80-pin LQFP package.

For engineers reviewing the MSP430F6724AIPN datasheet, MSP430F6724AIPN pinout, MSP430F6724AIPN application, or MSP430F6724AIPN equivalent, key selection criteria include its dual SD24_B ADC architecture for current/voltage channel separation, RTC with crystal offset calibration, auxiliary supply subsystem for backup operation, and low-power modes down to 0.78 µA in LPM4.5 - all critical for battery-backed or tamper-resistant meter designs.

Technical Context

The MSP430F6724AIPN implements a 16-bit RISC CPU with 25-MHz system clock capability, unified clock system featuring FLL stabilization, VLO, REFO, and XT1 (32-kHz crystal) support. Its power management includes an integrated LDO with programmable core voltage, supply supervision, and dual auxiliary supplies for isolated RTC and backup memory operation.

Peripherals are optimized for metrology: SD24_B converters accept differential PGA inputs with gain options for high-accuracy current sensing; ADC10_A provides six external analog inputs plus internal temperature sensor and reference channels; DMA enables autonomous data transfer between ADCs and RAM without CPU intervention.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PN), body size 12 mm × 12 mm, standard JEDEC footprint with exposed thermal pad (not electrically connected). Pinout validated per TI SLASE46A Rev. October 2018, Figure 4-2 and Table 4-2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power metrology microcontroller applications.

Compared with MSP430F6723AIPN and MSP430F6725AIPN, the MSP430F6724AIPN delivers optimal balance of flash capacity (96 KB), metrology-grade ADC performance, and low-power operation - making it ideal for Class 0.5 single-phase meters where firmware complexity exceeds 64 KB but does not require full 128 KB allocation.

Availability

MSP430F6724AIPN is available at Aetrix Electronics and suitable for single-phase watt-hour meters, energy monitoring gateways, and utility grid sensor nodes requiring stable component supply, long-term lifecycle support, and traceable sourcing for certification-critical deployments.

Supply support for MSP430F6724AIPN 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, with leadership in low-power microcontrollers and precision analog for industrial and energy applications.

The MSP430F672xA family targets single-phase electronic metering, integrating metrology-optimized ADCs, RTC, LCD, and ultra-low-power operation to replace discrete metrology ICs and reduce system cost and size.

FAQ

What is the maximum system clock frequency supported by the MSP430F6724AIPN?

The MSP430F6724AIPN supports a maximum system clock frequency of 25 MHz, enabled by its integrated DCO and FLL control loop. This clock speed allows real-time execution of metrology algorithms such as RMS calculation, watt-hour integration, and harmonic analysis while maintaining ultra-low power consumption in active mode (265 µA/MHz at 8 MHz, 3.0 V).

How many analog input channels does the MSP430F6724AIPN support for metrology measurements?

The MSP430F6724AIPN supports six external analog input channels via its ADC10_A module, plus two internal channels (temperature sensor and reference voltage). Additionally, its two SD24_B converters provide dedicated differential analog inputs - typically used for voltage and current sensing - each with PGA gain options up to 32× for high-resolution metrology front-end design.

Does the MSP430F6724AIPN include hardware support for real-time clock calibration?

Yes, the MSP430F6724AIPN includes password-protected RTC hardware with crystal offset calibration and temperature compensation. This feature corrects for crystal aging and thermal drift, ensuring timekeeping accuracy within ±20 ppm over −40°C to +85°C - essential for time-of-use billing compliance in revenue-grade meters.

What LCD configuration options are available on the MSP430F6724AIPN?

The MSP430F6724AIPN integrates the LCD_C module supporting up to 320 segments in 8-mux mode, with programmable contrast control and internal charge pump. It supports static, 2-, 3-, and 4-mux configurations, and includes dedicated COM0–COM7 pins plus segment drivers mapped across P1–P8 ports - enabling direct drive of common industrial LCD displays without external bias circuitry.

Is the MSP430F6724AIPN pin-compatible with other devices in the MSP430F672x family?

Yes, the MSP430F6724AIPN is pin-compatible with all 80-pin LQFP (PN) variants in the MSP430F672x family, including MSP430F6720AIPN through MSP430F6726AIPN. They share identical pinouts, power domains, and peripheral mappings - allowing hardware reuse across different flash/RAM configurations and enabling scalable meter designs.