Texas Instruments MSP430F6723IPZ

Overview

MSP430F6723IPZ from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller designed for single-phase electronic watt-hour metering. It integrates two 24-bit sigma-delta ADCs, a 10-bit 200-ksps ADC, LCD driver (up to 320 segments), real-time clock with crystal offset calibration, and three eUSCI_A modules supporting UART/IrDA/SPI plus one eUSCI_B module for I²C/SPI - all in a 100-pin LQFP package.

For engineers reviewing the MSP430F6723IPZ datasheet, MSP430F6723IPZ pinout, MSP430F6723IPZ application, or MSP430F6723IPZ equivalent, this page delivers verified functional specifications, validated pin functions, confirmed metering use cases, and technically differentiated alternatives - all grounded in TI's SLAS731D production datasheet (Rev. September 2018).

Technical Context

The MSP430F6723IPZ implements a 16-bit RISC CPU with 25-MHz system clock capability, digitally controlled oscillator (DCO), and flexible power management including integrated LDO, supply supervision, and dual auxiliary supplies (AUXVCC1–3) for RTC and backup subsystem isolation. Its low-power modes include LPM3.5 (1.24 µA @ 3.0 V) with active RTC and LPM4.5 (0.78 µA @ 3.0 V) shutdown mode.

Peripherals are optimized for metrology: SD24_B converters support differential PGA inputs with programmable gain, ADC10_A provides six external + two internal channels (including temperature sensor), and the LCD_C controller supports 8-mux operation with integrated contrast control. All timers (TA0–TA3) feature capture/compare registers for precise pulse measurement in energy metering applications.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, standard JEDEC footprint with exposed thermal pad (per TI SLAS731D Section 8).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6724IPZ and MSP430F6725IPZ, the MSP430F6723IPZ offers optimal cost/performance balance for Class 0.2 meters with standard firmware footprints and no hardware crypto requirement - reducing BOM cost while maintaining full metrology feature parity.

Availability

MSP430F6723IPZ is available at Aetrix Electronics and suitable for 2-wire metering, 3-wire metering, and tamper-resistant electricity meter designs requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.

Supply support for MSP430F6723IPZ 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 specializing in analog and embedded processing technologies, with leadership in ultra-low-power microcontrollers for industrial and energy infrastructure applications.

The MSP430F6723IPZ belongs to TI's MSP430F672x metrology-optimized MCU family, engineered specifically for single-phase electricity meters requiring high-accuracy energy measurement, secure timekeeping, and integrated LCD display control.

FAQ

What is the maximum system clock frequency supported by the MSP430F6723IPZ?

The MSP430F6723IPZ supports a maximum system clock frequency of 25 MHz, enabled by its digitally controlled oscillator (DCO) and FLL control loop. This frequency allows real-time execution of metrology algorithms-including RMS calculation, harmonic analysis, and tariff switching-while maintaining sub-1% error margins under IEC 62053-21 conditions. The DCO achieves stable operation across the full 1.8–3.6 V supply range and –40°C to +85°C temperature range.

Does the MSP430F6723IPZ include hardware support for AES encryption?

No, the MSP430F6723IPZ does not include a hardware AES accelerator. That feature is present only in higher-tier variants such as the MSP430F6725IPZ and MSP430F6726IPZ. The MSP430F6723IPZ relies on software-based cryptographic libraries for lightweight security tasks, making it suitable for meters where AES acceleration is not mandated by regional utility standards or communication protocols like DLMS/COSEM.

How many SD24_B sigma-delta ADC channels does the MSP430F6723IPZ integrate?

The MSP430F6723IPZ integrates two independent 24-bit sigma-delta ADC modules (SD24_B), each with differential PGA inputs and programmable gain. This configuration supports simultaneous sampling of voltage and current signals in single-phase metering applications. Unlike the MSP430F673x series (which includes three SD24_B channels), the MSP430F6723IPZ omits the third SD24_B converter - confirmed in Table 4-1 of SLAS731D, where pins SD2P0/SD2N0 are marked "NC" for MSP430F672x devices.

What LCD segment count and multiplexing does the MSP430F6723IPZ support?

The MSP430F6723IPZ supports up to 320 LCD segments in 8-mux mode via its integrated LCD_C controller. This enables high-resolution front-panel displays for residential and commercial meters without external segment drivers. The controller includes programmable contrast control, charge pump regulation, and automatic blink functionality - reducing bill-of-materials cost and PCB area compared to discrete LCD solutions.

Is the MSP430F6723IPZ pin-compatible with the MSP430F6733IPZ?

No, the MSP430F6723IPZ is not fully pin-compatible with the MSP430F6733IPZ. While both use the 100-pin LQFP (PZ) package and share identical pinouts for primary functions (power, clocks, I/O ports), key differences exist: pins 5–6 (SD2P0/SD2N0) are no-connect on MSP430F6723IPZ but functional on MSP430F6733IPZ, and pin 56 (P3.7) maps to PM_SD2DIO on MSP430F6733IPZ but to PM_NONE on MSP430F6723IPZ. These differences require PCB layout revision for interchangeability.