Texas Instruments MSP430FR69221IPM

Overview

MSP430FR69221IPM from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller with 64KB nonvolatile memory, 2KB RAM, integrated 12-bit ADC, 116-segment LCD driver, and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered metering and sensing applications requiring RTC, capacitive touch, and cryptographic security.

For engineers reviewing the MSP430FR69221IPM datasheet, MSP430FR69221IPM pinout, MSP430FR69221IPM application, or MSP430FR69221IPM equivalent, key selection criteria include LPM3.5 current (0.35 µA), FRAM endurance (10¹⁵ writes), AES256 coprocessor support, and 64-pin LQFP package compatibility with legacy MSP430FR69xx designs.

Technical Context

The MSP430FR69221IPM implements a CPUXV2 core with 16 general-purpose registers and executes instructions at up to 16 MHz using a factory-trimmed DCO or external 32-kHz LFXT crystal. Its low-power architecture includes seven distinct operating modes, with LPM3.5 enabling real-time clock operation at 0.35 µA while retaining full FRAM and register state.

Peripherals are tightly coupled via three-channel DMA and a unified memory map: FRAM serves as program, data, and storage space. The device lacks HFXIN/HFOUT pins-confirming exclusive reliance on LFXT and internal clocks-and integrates hardware CRC16/CRC32, 32-bit MPY, and programmable pullup/pulldown on all I/O ports P1–P9 and PJ.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm), RoHS-compliant, thermal pad not present (unlike VQFN variants).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FR6922IPM, the MSP430FR69221IPM adds hardware AES256 for secure firmware/data-critical for regulated utility deployments-while the MSP430FR69221IRGC offers identical functionality in a thermally superior VQFN package for compact industrial sensors.

Availability

MSP430FR69221IPM is available at Aetrix Electronics and suitable for heat cost allocators, utility meters, and portable medical equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MSP430FR69221IPM 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-level innovation.

The MSP430FR69xx product line targets ultra-low-power sensing and metering applications, integrating FRAM, RTC, LCD, and security peripherals to extend battery life and simplify design for utility, building automation, and portable instrumentation.

FAQ

What is the maximum operating frequency of the MSP430FR69221IPM?

The MSP430FR69221IPM supports a maximum CPU clock frequency of 16 MHz, achieved using the factory-trimmed DCO oscillator or an external high-frequency crystal. However, the device does not implement HFXIN/HFOUT pins-its clock system relies exclusively on the DCO and 32-kHz LFXT crystal, making 16 MHz the practical upper limit for active-mode operation. The MSP430FR69221IPM datasheet confirms this specification under Recommended Operating Conditions.

Does the MSP430FR69221IPM support hardware AES encryption?

Yes, the MSP430FR69221IPM includes a dedicated hardware AES256 encryption and decryption coprocessor, as explicitly stated in the "Code Security and Encryption" section of its datasheet. This feature is absent in the non-"1" variants (e.g., MSP430FR6922IPM). The coprocessor accelerates cryptographic operations without CPU intervention, enabling secure firmware updates and protected data storage in utility metering and medical applications using the MSP430FR69221IPM.

What package type is used for the MSP430FR69221IPM?

The MSP430FR69221IPM uses a 64-pin LQFP (Leadless Quad Flat Package) with 10 mm × 10 mm body size and 0.5-mm lead pitch. This package is RoHS-compliant and features exposed pads only on thermal variants (e.g., RGC), not on the PM variant. Pinout compatibility is maintained across LQFP and VQFN packages in the MSP430FR692x family, allowing migration between MSP430FR69221IPM and MSP430FR69221IRGC with board layout adjustments.

How much FRAM memory does the MSP430FR69221IPM provide?

The MSP430FR69221IPM provides 64KB of embedded ferroelectric RAM (FRAM), configured as unified memory for program code, runtime variables, and nonvolatile data storage. Unlike flash, FRAM supports 125-ns write cycles, 10¹⁵ write endurance, and byte-level writes without erase overhead-enabling robust data logging in utility meters and portable medical devices using the MSP430FR69221IPM.

What is the typical current consumption of the MSP430FR69221IPM in RTC-only mode?

The MSP430FR69221IPM consumes 0.35 µA typical current in LPM3.5 mode, where the real-time clock remains active with calendar and alarm functions enabled while the CPU and most peripherals are powered down. This value is measured at 3 V and 25°C per the official datasheet's "Low-Power Mode LPMx.5 Supply Currents" table and is critical for battery-operated applications like heat cost allocators relying on the MSP430FR69221IPM for decade-long deployments.