Texas Instruments MSP430F6723AIPN

Overview

MSP430F6723AIPN 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, real-time clock with crystal offset calibration, and three eUSCI_A modules (UART/IrDA/SPI) plus one eUSCI_B (I²C/SPI), all in an 80-pin LQFP package.

For engineers reviewing the MSP430F6723AIPN datasheet, MSP430F6723AIPN pinout, MSP430F6723AIPN application, or MSP430F6723AIPN equivalent, key selection criteria include its dual SD24_B ADC architecture for current/voltage channel separation, auxiliary supply support for RTC backup, low-power LPM3.5 mode (1.24 µA at 3.0 V), and 64 KB flash/4 KB RAM configuration optimized for Class 0.2 metering firmware.

Technical Context

The MSP430F6723AIPN implements a 16-bit RISC CPU with 25-MHz system clock capability, unified clock system featuring FLL stabilization, VLO and REFO internal sources, and XT1 32-kHz crystal support. Its power management includes a programmable LDO core regulator, supply voltage supervision, and dual auxiliary supply domains (AUXVCC1–3) for isolated RTC and backup subsystem operation.

Peripherals are tightly integrated for metering: SD24_B converters accept differential PGA inputs with gain options, ADC10_A provides six external analog channels plus temperature sensor, and the LCD_C module supports contrast control and static/segment drive without external bias. DMA enables zero-CPU-overhead data transfer between ADCs and RAM.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PN), 12 mm × 12 mm body size, standard JEDEC footprint with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6724AIPN and MSP430F6721AIPN, the MSP430F6723AIPN delivers optimal balance of memory headroom and cost for Class 0.2 single-phase meters requiring harmonic analysis and secure timekeeping without over-provisioning flash.

Availability

MSP430F6723AIPN is available at Aetrix Electronics and suitable for single-phase watt-hour meters, utility grid sensor nodes, and portable power quality analyzers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MSP430F6723AIPN 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 markets.

The MSP430F672xA family targets precision energy metering applications, integrating metrology-grade ADCs, RTC, LCD, and low-power architecture to meet IEC 62053 and ANSI C12 standards.

FAQ

What is the maximum sampling rate supported by the SD24_B ADCs in MSP430F6723AIPN?

The SD24_B ADCs in MSP430F6723AIPN support up to 8 kHz effective sampling rate per channel when configured with 24-bit resolution and appropriate oversampling ratio. This enables full-cycle sampling of 50/60 Hz waveforms with sufficient points for harmonic analysis up to the 40th order, meeting IEC 62053-22 requirements for Class 0.2 meters.

Does MSP430F6723AIPN support crystal oscillator calibration for the RTC?

Yes, MSP430F6723AIPN includes password-protected RTC calibration with automatic crystal offset compensation and temperature-based correction. The calibration routine adjusts the RTC clock source using internal temperature sensor readings and stored trim values, achieving ±1 ppm accuracy over –40°C to 85°C without external calibration equipment.

How many LCD segments can MSP430F6723AIPN drive, and what mux configurations are supported?

MSP430F6723AIPN drives up to 320 segments in 8-mux mode, or 160 segments in 4-mux mode, using its integrated LCD_C module. It supports static, 2-, 3-, 4-, and 8-mux configurations with programmable contrast control, internal charge pump, and automatic blinking-eliminating need for external bias circuitry in most meter displays.

What communication interfaces are available on MSP430F6723AIPN for DLMS/COSEM implementation?

MSP430F6723AIPN provides three eUSCI_A modules (supporting UART with automatic baud-rate detection and IrDA) and one eUSCI_B module (supporting I²C and SPI). These enable concurrent DLMS/COSEM transport layers: UART for optical probe interface, I²C for secure element communication, and SPI for external FRAM or RF module integration.

Is MSP430F6723AIPN pin-compatible with other devices in the MSP430F672xA family?

Yes, MSP430F6723AIPN is pin-compatible with all MSP430F672xAIPN variants (e.g., MSP430F6721AIPN, MSP430F6724AIPN) in the 80-pin LQFP package. Pin functions, power domains, and peripheral mappings are identical-allowing hardware reuse across different flash/RAM configurations without PCB redesign.