Texas Instruments MSP430G2544IYFFR

Overview

MSP430G2544IYFFR from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller with 16KB+256B flash, 512B RAM, 10-bit 200-ksps ADC with internal reference and DTC, dual 16-bit timers (Timer_A3 and Timer_B3), USCI_A0/USCI_B0 supporting UART/LIN/IrDA/SPI/I²C, and DSBGA-49 (YFF) package. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes requiring fast wake-up (<1 µs) and analog signal acquisition.

For engineers reviewing the MSP430G2544IYFFR datasheet, MSP430G2544IYFFR pinout, MSP430G2544IYFFR application, or MSP430G2544IYFFR equivalent, key selection criteria include its 16-MHz DCO calibration, 32 I/O pins with Schmitt-trigger inputs, integrated brownout detector, Spy-Bi-Wire debug interface, and support for LIN-compliant UART auto-baud detection in sensor front-end designs.

Technical Context

The MSP430G2544IYFFR implements a 16-bit CPU with constant generators and five low-power modes (LPM0–LPM4), enabling sub-1µA standby current and 0.1µA off-mode retention. Its clock system integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies up to 16 MHz, plus LFXT1 (32-kHz crystal) and VLO oscillators.

Peripherals include a 12-channel ADC10 with autoscan and data transfer controller (DTC), two independent 16-bit timers with capture/compare registers and shadow registers (Timer_B3), and dual USCI modules supporting simultaneous asynchronous and synchronous communication - all mapped to 32 GPIO pins with programmable pullup/down resistors and interrupt capability.

Key Specifications

Pinout & Package

Package: 49-ball DSBGA (YFF), 3.1 mm × 3.1 mm, 0.4-mm pitch, bottom-side thermal pad connected to DVSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2444IYFFR, the MSP430G2544IYFFR provides double flash for secure bootloader + application separation; versus MSP430G2553IRHA40, it offers smaller DSBGA footprint and Timer_B3 shadow registers - both critical for space-constrained, high-reliability sensor endpoints.

Availability

MSP430G2544IYFFR is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial temperature monitors, smart meter endpoints, and portable gas detectors requiring stable component supply across long-lifecycle embedded programs.

Supply support for MSP430G2544IYFFR 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 MSP430G2x44 product line targets ultra-low-power mixed-signal applications where extended battery life, integrated analog peripherals, and compact packaging are essential - especially in portable instrumentation and wireless sensing.

FAQ

What is the maximum operating frequency of the MSP430G2544IYFFR?

The MSP430G2544IYFFR supports a maximum MCLK frequency of 16 MHz via its factory-calibrated digitally controlled oscillator (DCO). This frequency is achievable at VCC ≥ 3.3 V and TA = 25°C. The DCO provides four calibrated frequencies (1/8/12/16 MHz), and the MSP430G2544IYFFR's clock system also supports external crystals up to 16 MHz for HF mode or 32 kHz for LF mode. All timing-critical peripherals - including the 200-ksps ADC and USCI modules - are fully functional at 16 MHz.

Does the MSP430G2544IYFFR support hardware-based UART auto-baud detection?

Yes, the MSP430G2544IYFFR's USCI_A0 module implements LIN-compliant automatic baud-rate detection in UART mode. This feature allows the MSP430G2544IYFFR to autonomously determine incoming bit rates without prior configuration, making it ideal for interoperability with legacy automotive or industrial bus systems. The function operates independently of CPU intervention and is documented in Section 5.25 of the SLAS892C datasheet.

How many ADC channels does the MSP430G2544IYFFR support, and what reference options are available?

The MSP430G2544IYFFR integrates a 10-bit ADC10 with 12 selectable analog input channels (A0–A7, A12–A15). It supports multiple reference configurations: internal 1.5-V or 2.5-V references, external reference via VREF+/VREF− pins (P2.4/P2.3), or AVCC. The internal reference is factory-trimmed and stable over temperature, enabling accurate ratiometric measurements for sensor interfaces without external components.

What debug interface does the MSP430G2544IYFFR use, and is external hardware required?

The MSP430G2544IYFFR uses the two-wire Spy-Bi-Wire (SBW) interface for debugging and programming, accessed via RST/NMI/SBWTDIO and TEST/SBWTCK pins. No external voltage generator is needed - SBW operates directly from the target VCC supply. This interface supports full-speed emulation, flash programming, and breakpoint debugging using TI's MSP-FET or compatible tools, and is pin-compatible across the MSP430G2xx family.

Is the MSP430G2544IYFFR pin-compatible with other devices in the G2x44 family?

Yes, the MSP430G2544IYFFR shares identical pinout and ball mapping with MSP430G2444IYFFR and MSP430G2744IYFFR in the YFF (DSBGA-49) package. All three variants use the same mechanical footprint, signal assignments, and power/ground ball locations - enabling direct hardware reuse across flash-size variants. Firmware compatibility is maintained at the peripheral register level, though users must verify flash/RAM size constraints in software.