Texas Instruments MSP430FR5723IRHAT

Overview

MSP430FR5723IRHAT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8 KB FRAM nonvolatile memory, 1 KB RAM, and a 16-channel analog comparator. It operates from 2 V to 3.6 V across –40°C to 85°C and delivers 8-MHz CPU performance with active-mode current as low as 81.4 µA/MHz - ideal for battery-powered sensor management and data acquisition systems.

For engineers reviewing the MSP430FR5723IRHAT datasheet, MSP430FR5723IRHAT pinout, MSP430FR5723IRHAT application, or MSP430FR5723IRHAT equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC calendar support in LPM3.5 (1.5 µA), dual eUSCI modules (UART/I²C/SPI), and 40-pin RHA package compatibility with TI's MSP-TS430RHA40A target board.

Technical Context

The MSP430FR5723IRHAT implements the MSP430xV2 CPU core with unified FRAM memory architecture enabling simultaneous read/write and eliminating erase latency. Its power management includes SVS/BOR with zero-power brownout detection, integrated LDO, and seven low-power modes - including LPM4.5 (0.32 µA shutdown) - optimized for intermittent sensing duty cycles.

Analog subsystem integration includes a 16-channel comparator with programmable hysteresis and internal voltage reference, plus hardware-accelerated peripherals: 32-bit MPY, three-channel DMA, five 16-bit timers (TA0/TA1/TB0/TB1/TB2), and CRC-16 engine - all directly addressable via memory-mapped registers without software overhead.

Key Specifications

Pinout & Package

Package: 40-pin VQFN (RHA), 6 mm × 6 mm body size with exposed thermal pad recommended to be connected to DVSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FR5725IRHAT and MSP430FR5729IRHAT, the MSP430FR5723IRHAT provides optimal balance of FRAM capacity, comparator depth, and power efficiency for comparator-centric, non-ADC sensing applications - reducing memory overhead while maintaining full timer and communication flexibility.

Availability

MSP430FR5723IRHAT is available at Aetrix Electronics and suitable for smart sensor nodes, industrial data loggers, and home automation hubs requiring stable component supply, long-term lifecycle support, and guaranteed traceability for ISO 9001-certified production.

Supply support for MSP430FR5723IRHAT 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 delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.

The MSP430FR57xx family was designed specifically for ultra-low-power sensing and system management in building automation, smart grid infrastructure, and industrial IoT endpoints where battery life, memory reliability, and real-time responsiveness are critical.

FAQ

What is the maximum operating frequency of the MSP430FR5723IRHAT?

The MSP430FR5723IRHAT supports a maximum system clock frequency of 8 MHz using its digitally controlled oscillator (DCO). This frequency is factory-trimmed across six selectable points and can be further calibrated using the built-in reference. The device maintains full functionality - including FRAM access, peripheral operation, and interrupt response - at this rate while consuming 81.4 µA/MHz in active mode.

Does the MSP430FR5723IRHAT include an analog-to-digital converter (ADC)?

No, the MSP430FR5723IRHAT does not include an ADC. Per Table 3-1 (Device Comparison) and Section 4.5 signal descriptions, this variant omits the ADC10_B module entirely. Its analog sensing capability relies solely on the 16-channel comparator (Comp_D) with internal voltage reference and programmable hysteresis - making it suitable for threshold-based detection but not for quantitative voltage measurement.

What package type and pin count does the MSP430FR5723IRHAT use?

The MSP430FR5723IRHAT uses a 40-pin VQFN package designated RHA, measuring 6 mm × 6 mm with an exposed thermal pad. This matches the pinout shown in Figure 4-1 for MSP430FR5721/FR5723/FR5725/FR5727/FR5729 devices. The RHA package supports full peripheral mapping including dual eUSCI modules, RTC crystal connections (PJ.4/PJ.5), and all 32 GPIO pins listed in the device comparison table.

How does FRAM memory in the MSP430FR5723IRHAT differ from traditional flash in terms of endurance and write speed?

The MSP430FR5723IRHAT's 8 KB FRAM offers 10¹⁵ write cycles - orders of magnitude higher than typical flash (10⁴–10⁵ cycles) - and writes data at 125 ns per 16-bit word (8 MB/s effective), with no erase-before-write requirement. This enables true EEPROM-like usage patterns: direct variable logging, firmware patching in situ, and real-time data buffering without wear leveling or block management overhead.

Can the MSP430FR5723IRHAT operate from a single 3-V coin cell battery throughout its lifetime?

Yes - the MSP430FR5723IRHAT operates across 2.0 V to 3.6 V and achieves 0.32 µA in LPM4.5 (shutdown mode) and 1.5 µA in RTC-enabled LPM3.5. When paired with a standard CR2032 (220 mAh), conservative estimation accounting for periodic wake-ups, FRAM writes, and RTC operation confirms multi-year operation - exceeding 5 years in typical sensor-node duty cycles with 10-second sampling intervals.