Texas Instruments MSP430F2112IRTVR

Overview

MSP430F2112IRTVR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 2 KB flash, 256 B RAM, a 10-bit 200-ksps ADC with internal reference and DTC, two 16-bit timers (Timer0_A3 with three capture/compare registers, Timer1_A2 with two), USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and up to 24 GPIO pins - deployed in battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430F2112IRTVR datasheet, MSP430F2112IRTVR pinout, MSP430F2112IRTVR application, or MSP430F2112IRTVR equivalent, key selection criteria include active-mode current at 1 MHz (250 µA), standby-mode draw (0.7 µA), off-mode RAM retention (0.1 µA), 16-bit timer flexibility, and integrated analog peripherals for autonomous data acquisition without CPU intervention.

Technical Context

The MSP430F2112IRTVR implements a digitally controlled oscillator (DCO) calibrated to ±1% across four frequencies (up to 16 MHz), enabling sub-1-µs wake-up from LPM4. Its clock system delivers ACLK (from 32-kHz crystal or internal LF oscillator), SMCLK (for peripherals), and MCLK (for CPU), all software-selectable via the Basic Clock Module.

Peripherals are memory-mapped and accessible via full 16-bit instruction set; the USCI modules support hardware-autoscan ADC conversions with Data Transfer Controller (DTC) offloading, while Comparator_A+ enables slope A/D and battery monitoring without ADC resource use.

Key Specifications

Pinout & Package

Package: 32-pin QFN (RTV), 5 mm × 5 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 ultra-low-power microcontroller applications.

Compared with MSP430F2112IRTVR, the F2122IRTVR offers double flash/RAM with no trade-off in power or peripheral set, while the G2553IPW28 trades ultra-low-power capability and analog integration for higher memory and broader toolchain support - making it better suited for development-stage projects than field-deployed energy harvesters.

Availability

MSP430F2112IRTVR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical instruments, smart utility meter interfaces, and industrial condition monitors requiring stable component supply across long-lifecycle deployments.

Supply support for MSP430F2112IRTVR 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, reliability, and system-level integration.

The MSP430F21x2 product line targets ultra-low-power embedded applications - especially battery-operated measurement, sensing, and control systems where sub-µA sleep currents and fast wake-up are critical design constraints.

FAQ

What is the maximum operating frequency of the MSP430F2112IRTVR?

The MSP430F2112IRTVR supports a maximum system clock (MCLK) of 16 MHz via its factory-calibrated digitally controlled oscillator (DCO). This frequency is achievable without external crystals, as four DCO calibration points (1/8/12/16 MHz) are stored in information memory segment A with ±1% accuracy at 3 V and 30°C - enabling high-speed active-mode operation while retaining ultra-low-power sleep states.

Does the MSP430F2112IRTVR support hardware UART with automatic baud rate detection?

Yes, the MSP430F2112IRTVR's USCI_A0 module supports enhanced UART with LIN-compliant auto-baudrate detection. This feature allows the MSP430F2112IRTVR to automatically synchronize to incoming serial frames without prior knowledge of the transmitter's baud rate - essential for interoperability in automotive diagnostics and multi-vendor sensor networks.

How many analog input channels does the 10-bit ADC support on the MSP430F2112IRTVR?

The MSP430F2112IRTVR's ADC10 module supports eight analog input channels (A0–A7), mapped to P1.0, P2.0–P2.4, and P3.0, P3.4–P3.7. All channels are accessible via the autoscan function, and the DTC can autonomously store conversion results in RAM - allowing the MSP430F2112IRTVR to perform continuous multi-channel acquisition without CPU involvement.

Can the MSP430F2112IRTVR operate from a single 1.8-V supply?

Yes, the MSP430F2112IRTVR is fully specified to operate across 1.8 V to 3.6 V, including full peripheral functionality and flash programming at 1.8 V. Its ultra-low-power architecture maintains 250 µA active current at 1 MHz and 2.2 V, scaling downward at lower voltages - making the MSP430F2112IRTVR suitable for direct connection to single-cell LiFePO₄ or regulated 1.8-V rails.

Is there an onboard debugger interface for the MSP430F2112IRTVR?

Yes, the MSP430F2112IRTVR integrates a Spy-Bi-Wire (SBW) emulation module accessible via the RST/NMI/SBWTDIO and TEST/SBWTCK pins (Pins 5 and 29). This two-wire interface supports full-speed debugging, flash programming, and real-time register inspection - eliminating the need for external JTAG adapters and reducing PCB footprint in space-constrained designs.