Texas Instruments MSP430FR69271IPMR

Overview

MSP430FR69271IPMR from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller with 64KB nonvolatile memory, 2KB RAM, integrated LCD driver (116 segments, 4-mux), 12-bit ADC (8 external inputs), and dual eUSCI modules supporting UART/IrDA/SPI and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered metering applications requiring RTC, capacitive touch, and AES-256 security.

For engineers reviewing the MSP430FR69271IPMR datasheet, MSP430FR69271IPMR pinout, MSP430FR69271IPMR application, or MSP430FR69271IPMR equivalent, key selection criteria include LPM3.5 RTC current (0.35 µA), FRAM endurance (10¹⁵ writes), I²C bootloader support, 64-pin LQFP package compatibility, and absence of HFXT oscillator-critical for cost-sensitive, low-frequency sensing designs.

Technical Context

The MSP430FR69271IPMR implements the MSP430 CPUXV2 core with 16 registers and executes instructions at up to 16 MHz using a factory-trimmed DCO clock source. Its low-power architecture supports seven operating modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown), with supply current as low as 0.02 µA in deep sleep.

Peripherals include three 16-bit Timer_A modules (TA0/TA1/TA2), one 16-bit Timer_B (TB0) with seven capture/compare registers, a 32-bit hardware multiplier, three-channel DMA, and dual eUSCI blocks-one configured for UART/IrDA/SPI (eUSCI_A0/A1), the other for I²C/SPI (eUSCI_B0/B1). The device lacks HFXT support per datasheet Note in Figure 1-2.

Key Specifications

Pinout & Package

The MSP430FR69271IPMR is housed in a 64-pin LQFP (PM) package measuring 10 mm × 10 mm with exposed thermal pad recommended to be connected to VSS. Pin functions are multiplexed across digital I/O, peripheral signals, power, and ground terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FR6927IPM and MSP430FR6928IPM, the MSP430FR69271IPMR offers identical low-power performance and peripheral set but uniquely integrates I²C BSL for secure, two-wire firmware updates-ideal for sealed or space-constrained metering enclosures where UART access is impractical.

Availability

MSP430FR69271IPMR is available at Aetrix Electronics and suitable for water metering, heat cost allocation, and portable medical logging requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEMs.

Supply support for MSP430FR69271IPMR 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 personal electronics markets.

The MSP430FR69xx family is designed for ultra-low-power metering and sensing applications, emphasizing FRAM-based data integrity, RTC accuracy, and integrated LCD/touch interfaces for battery-operated endpoints.

FAQ

What is the maximum operating frequency of the MSP430FR69271IPMR?

The MSP430FR69271IPMR operates at up to 16 MHz using its factory-trimmed DCO clock source. This frequency is fully supported across all active and low-power modes, enabling real-time signal processing while maintaining sub-100 µA/MHz active current consumption. The device does not include an HFXT oscillator, so external high-frequency crystals cannot be used to exceed DCO limits.

Does the MSP430FR69271IPMR support hardware AES encryption?

Yes, the MSP430FR69271IPMR includes a dedicated hardware AES-256 encryption and decryption coprocessor with integrated true random number generation. This enables secure firmware updates, encrypted data storage in FRAM, and protected communication-critical for utility metering applications subject to cybersecurity standards like DLMS/COSEM.

What LCD configuration does the MSP430FR69271IPMR support?

The MSP430FR69271IPMR integrates the LCD_C peripheral supporting up to 116 segments with a 4-mux configuration. It provides dedicated pins for COM0–COM7 and segment outputs across multiple ports, along with internal charge pump and contrast control-enabling direct drive of segmented LCDs in heat meters and portable medical devices without external bias circuitry.

Is the MSP430FR69271IPMR pin-compatible with other MSP430FR69xx devices in the 64-pin LQFP package?

Yes, the MSP430FR69271IPMR shares identical pinout and package dimensions (10 mm × 10 mm LQFP-64) with MSP430FR6927IPM and MSP430FR6928IPM. All three support the same peripheral mappings and voltage ratings, allowing direct substitution where memory size or bootloader interface requirements align-no PCB redesign is needed.

What are the key low-power mode currents for the MSP430FR69271IPMR?

The MSP430FR69271IPMR achieves 0.35 µA typical current in LPM3.5 (RTC active), 0.4 µA in LPM3 (VLO active), and 0.02 µA in LPM4.5 (full shutdown). These values are measured at 3 V and 25°C with all peripherals disabled except RTC in LPM3.5-enabling decade-long battery life in metering applications using standard CR2032 cells.