Texas Instruments MSP430F2272IRHAR

Overview

MSP430F2272IRHAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 32KB+256B flash memory, 1KB RAM, a 10-bit 200-ksps ADC with internal reference and data transfer controller, dual 16-bit timers (Timer_A3 and Timer_B3), and a Universal Serial Communication Interface supporting UART/LIN, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and RF front ends.

For engineers reviewing the MSP430F2272IRHAR datasheet, MSP430F2272IRHAR pinout, MSP430F2272IRHAR application, or MSP430F2272IRHAR equivalent, key selection criteria include its 40-pin QFN (RHA) package, Spy-Bi-Wire debug interface, brownout detector, sub-1-µs wake-up from standby mode, and integrated analog peripherals for signal acquisition in space-constrained embedded designs.

Technical Context

The MSP430F2272IRHAR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its basic clock system includes a digitally controlled oscillator (DCO) calibrated to ±1% across four frequencies up to 16 MHz, plus support for 32-kHz crystal and HF crystal up to 16 MHz.

It integrates two independent 16-bit timers-Timer_A3 with three capture/compare registers and Timer_B3 with three capture/compare registers and shadow registers-and a USCI module with dual independent channels (USCI_A0 for UART/LIN/IrDA/SPI, USCI_B0 for SPI/I²C). Unlike the MSP430F22x4 series, the MSP430F2272IRHAR does not include operational amplifiers.

Key Specifications

Pinout & Package

Package: 40-pin QFN (RHA), 6 mm × 6 mm, 0.5 mm pitch, exposed thermal pad (connected to DVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2274IRHAR, the MSP430F2272IRHAR omits op-amps but retains identical timing, communication, and ADC capabilities-making it optimal for pure digitization and control tasks. Versus MSP430G2553IPW20, it delivers higher memory, dual timers, and full USCI flexibility at the cost of larger footprint and higher unit price.

Availability

MSP430F2272IRHAR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial data loggers requiring stable component supply, long-term manufacturability, and TI's qualified production process.

Supply support for MSP430F2272IRHAR 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 specializing in analog, embedded processing, and connectivity technologies, with decades of experience in ultra-low-power microcontrollers.

The MSP430F2272IRHAR belongs to the MSP430F2xx family, designed specifically for battery-operated measurement and sensing applications where energy efficiency, integrated analog peripherals, and rapid wake-up response are critical.

FAQ

What is the maximum operating frequency of the MSP430F2272IRHAR?

The MSP430F2272IRHAR supports internal DCO frequencies up to 16 MHz with factory calibration to ±1% accuracy across temperature and voltage. It also accepts external clock sources including 32-kHz crystals for low-power real-time clock operation and HF crystals up to 16 MHz for high-precision timing. The CPU executes instructions at 62.5 ns per cycle at 16 MHz.

Does the MSP430F2272IRHAR include operational amplifiers?

No, the MSP430F2272IRHAR does not include operational amplifiers. Operational amplifiers are present only in the MSP430F22x4 series (e.g., MSP430F2274IRHAR), not in the MSP430F22x2 series to which MSP430F2272IRHAR belongs. Its analog front end consists solely of the 10-bit ADC, internal voltage reference, and comparator-free signal chain.

What debug interface does the MSP430F2272IRHAR support?

The MSP430F2272IRHAR supports Spy-Bi-Wire (SBW), a two-wire variant of JTAG that uses pins TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6). This interface enables full-speed debugging, flash programming, and boundary-scan testing with minimal PCB footprint-no dedicated 4-pin JTAG header is required.

How many ADC input channels does the MSP430F2272IRHAR support?

The MSP430F2272IRHAR supports 12 analog input channels (A0–A7, A12–A15) for its 10-bit ADC. Channels A0–A7 map directly to P2.0–P2.3 and P3.6–P3.7; A12–A15 map to P4.3–P4.6. All channels are accessible via autoscan mode with automatic data transfer to memory using the integrated Data Transfer Controller (DTC).

Is the MSP430F2272IRHAR pin-compatible with other devices in the MSP430F22x2 family?

Yes, the MSP430F2272IRHAR is fully pin-compatible with other 40-pin QFN (RHA) variants in the MSP430F22x2 family-including MSP430F2232IRHAR and MSP430F2252IRHAR-sharing identical pin assignments, electrical characteristics, and package dimensions. Firmware and hardware designs can be reused across these parts with only flash/RAM size adjustments required.