Texas Instruments MSP430G2212IRSA16T

Overview

MSP430G2212IRSA16T from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 2 kB flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, USI supporting SPI/I²C, on-chip comparator, and eight I/O pins in a 16-pin QFN package. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430G2212IRSA16T datasheet, MSP430G2212IRSA16T pinout, MSP430G2212IRSA16T application, or MSP430G2212IRSA16T equivalent, key selection criteria include its 2 kB flash size, absence of ADC10 (distinguishing it from G2x52 variants), QFN-16 thermal performance, Spy-Bi-Wire debug interface, and support for five low-power modes with sub-µA standby current.

Technical Context

This device belongs to the MSP430G2x12 series and implements a 16-bit CPU with seven addressing modes, constant generators, and register-based execution. Its clock system integrates a digitally controlled oscillator (DCO) calibrated at 1/8/12/16 MHz, internal LF oscillator, and external crystal support via XIN/XOUT.

The peripheral set includes USI (SPI/I²C), Comparator_A+ with eight input channels, Timer_A3 with three CC registers, and two 8-bit I/O ports (P1 and P2). Port P2 provides only two usable pins (P2.6 and P2.7) in the RSA16 package, and no ADC10 module is present-confirmed by documentation exclusions and Table 1 device options.

Key Specifications

Pinout & Package

Package: 16-pin QFN (RSA), 3 mm × 3 mm, 0.4 mm pitch, 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 MSP430G2232IRSA16, the MSP430G2212IRSA16T omits ADC10 to reduce cost and power, while retaining identical low-power modes and USI functionality; versus MSP430G2112IRSA16, it doubles RAM and flash and adds the third Timer_A capture/compare register for enhanced timing flexibility.

Availability

MSP430G2212IRSA16T is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and energy harvesting nodes requiring stable component supply across design-in, prototyping, and production phases.

Supply support for MSP430G2212IRSA16T 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 power efficiency and system integration.

The MSP430G2x12 product line delivers entry-level ultra-low-power mixed-signal MCUs targeting cost-sensitive, battery-operated applications where ADC is unnecessary but timing, communication, and analog comparison remain essential.

FAQ

Does MSP430G2212IRSA16T include an analog-to-digital converter (ADC)?

No, MSP430G2212IRSA16T does not include the ADC10 module. This is explicitly confirmed in the device family documentation: ADC10 functionality is exclusive to MSP430G2x52 variants (e.g., MSP430G2252), and Table 1 lists MSP430G2212IRSA16 with "–" under the ADC10 column. The MSP430G2212IRSA16T relies on its on-chip Comparator_A+ for analog threshold detection instead.

What debug interface does MSP430G2212IRSA16T support?

MSP430G2212IRSA16T supports the Spy-Bi-Wire (SBW) interface using pins RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). This two-wire JTAG subset enables full flash programming, real-time debugging, and emulation without requiring a four-wire JTAG header, reducing PCB routing complexity and connector cost.

How many I/O pins are accessible in the MSP430G2212IRSA16T QFN package?

The MSP430G2212IRSA16T provides eight fully functional I/O pins via Port 1 (P1.0–P1.7), plus two additional I/O-capable pins on Port 2 (P2.6 and P2.7), totaling ten GPIOs. However, P2.0–P2.5 are not bonded out in the RSA16 package per TI's pinout diagrams and Table 2 terminal functions, limiting usable P2 pins to only XIN and XOUT functions.

What is the maximum operating frequency of the MSP430G2212IRSA16T DCO?

The digitally controlled oscillator (DCO) in MSP430G2212IRSA16T is factory-calibrated at four frequencies: 1 MHz, 8 MHz, 12 MHz, and 16 MHz. While the DCO can be tuned between these points using MODx and DCOx bits, the maximum guaranteed operational frequency is 16 MHz - consistent with the 62.5-ns instruction cycle time and supported by all timing specifications in the datasheet.

Is MSP430G2212IRSA16T pin-compatible with other devices in the MSP430G2x12 family?

Yes, MSP430G2212IRSA16T is pin-compatible with all other MSP430G2x12 devices offered in the RSA16 package (e.g., MSP430G2112IRSA16, MSP430G2312IRSA16, MSP430G2412IRSA16), sharing identical pin functions, electrical characteristics, and footprint. This allows firmware reuse and hardware scalability across memory and peripheral variants within the same package.