Texas Instruments MSP430FR60471IPZR

Overview

MSP430FR60471IPZR from Texas Instruments is an ultrasonic sensing SoC MCU optimized for battery-powered water metering, featuring integrated Ultrasonic Sensing Solution (USS) with <25-ps dTOF accuracy, 12-bit sigma-delta ADC up to 8 Msps, and 256KB FRAM nonvolatile memory.

For engineers reviewing the MSP430FR60471IPZR datasheet, MSP430FR60471IPZR pinout, MSP430FR60471IPZR application, or MSP430FR60471IPZR equivalent, this device delivers certified metrology-grade flow measurement (<1 L/h detection), ultra-low-power operation (450 nA in LPM3.5 RTC mode), and hardware-accelerated signal processing via LEA for FFT-based time-of-flight analysis.

Technical Context

The MSP430FR60471IPZR implements a dedicated USS subsystem comprising programmable pulse generator (PPG), low-impedance 4-Ω PHY driver, PGA (–6.5 dB to 30.8 dB), and high-speed SDHS ADC - all synchronized under a 68–80 MHz PLL clock for sub-5 ps timing resolution. Its LEA coprocessor executes 256-point complex FFT independently of the 16-MHz CPUXV2 core, enabling real-time ultrasonic echo analysis without CPU intervention.

It integrates MTIF for pulse-based flow output (up to 1016 p/s), AES256 encryption, 16-channel analog comparator, and LCD_C driver supporting 264 segments - all operating within a unified 3.6 V to 1.8 V supply range and validated against ISO 4064, OIML R49, and EN 1434 accuracy standards.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm), RoHS-compliant, with exposed thermal pad; pin-compatible with other MSP430FR604x PZ variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FR6047IPZR and MSP430FR6045IPZR, the MSP430FR60471IPZR uniquely combines I²C bootloader capability with full 256KB FRAM - enabling secure, pin-efficient field updates while retaining maximum data retention capacity for regulatory audit trails.

Availability

MSP430FR60471IPZR is available at Aetrix Electronics and suitable for ultrasonic water metering, heat metering, and industrial liquid sensing applications requiring stable component supply, long-term lifecycle assurance, and metrology-grade certification support.

Supply support for MSP430FR60471IPZR 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, embedded processing, and connectivity solutions with emphasis on energy efficiency and system integration.

The MSP430FR604x product line targets battery-operated utility metering applications, integrating ultrasonic sensing, metrology acceleration, and FRAM-based data integrity into a single ultra-low-power SoC platform.

FAQ

What is the primary metrology function of the MSP430FR60471IPZR?

The MSP430FR60471IPZR performs differential time-of-flight (dTOF) measurement for ultrasonic flow sensing, achieving <25-ps accuracy using its integrated USS module - including programmable pulse generator, 4-Ω PHY driver, PGA, and 8-Msps sigma-delta ADC. This enables compliant water metering per ISO 4064, OIML R49, and EN 1434 standards. The MSP430FR60471IPZR is specifically designed to replace discrete analog front-ends and DSPs in battery-powered meter designs.

How does the LEA subsystem improve ultrasonic signal processing in the MSP430FR60471IPZR?

The LEA (Low-Energy Accelerator) in the MSP430FR60471IPZR executes 256-point complex FFTs independently of the CPU, completing computations up to 40× faster than the 16-MHz CPUXV2 core. This offloads time-critical echo analysis from the main processor, reducing active-mode current and enabling deterministic <1-ms processing latency - essential for real-time flow computation in the MSP430FR60471IPZR.

What distinguishes the MSP430FR60471IPZR from the MSP430FR6047IPZR?

The MSP430FR60471IPZR features an I²C bootloader (BSL) accessible via P1.6/P1.7, whereas the MSP430FR6047IPZR uses UART-based BSL on P2.0/P2.1. All other specifications - including 256KB FRAM, USS performance, LEA, MTIF, and LQFP-100 packaging - are identical between the two devices. The choice depends on host interface preference for firmware updates in the target meter design.

Does the MSP430FR60471IPZR support direct connection to standard ultrasonic transducers?

Yes, the MSP430FR60471IPZR directly interfaces industry-standard ultrasonic sensors up to 2.5 MHz via its dedicated CHx_IN/CHx_OUT pins and integrated 4-Ω PHY driver. No external amplifiers or matching networks are required, and the programmable pulse generator (PPG) supports variable-frequency excitation to optimize signal-to-noise ratio across transducer types - a key capability confirmed in the MSP430FR60471IPZR datasheet.

What power modes are available for long-term battery operation in the MSP430FR60471IPZR?

The MSP430FR60471IPZR offers LPM3.5 (450 nA with RTC active) and LPM4.5 (30 nA shutdown) modes optimized for multi-year battery life. In LPM3.5, the 3.7-pF crystal-backed RTC maintains precise timekeeping while the USS module remains ready for triggered measurements. These ultra-low-power states are validated across the full 1.8–3.6 V supply range and form the foundation of the MSP430FR60471IPZR's deployment in sealed, maintenance-free water meters.