Texas Instruments MSP430G2212IRSA16R

Overview

MSP430G2212IRSA16R from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 2 kB flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) for SPI/I²C, on-chip comparator, and eight programmable I/O pins. It operates from 1.8 V to 3.6 V and supports five power-saving modes - ideal for battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430G2212IRSA16R datasheet, MSP430G2212IRSA16R pinout, MSP430G2212IRSA16R application, or MSP430G2212IRSA16R equivalent, key selection criteria include its QFN-16 package, absence of ADC10 (distinguishing it from G2x52 variants), calibrated DCO up to 16 MHz, Spy-Bi-Wire debug interface, and capacitive-touch I/O capability on up to 16 pins.

Technical Context

The MSP430G2212IRSA16R implements a 16-bit CPU with seven addressing modes and 51 instructions, executing register-to-register operations in one CPU cycle. Its basic clock module integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (1/8/12/16 MHz), internal low-frequency oscillator (VLO), and external crystal support (32 kHz).

It features two 8-bit I/O ports (P1 and P2), with individually configurable pullup/pulldown resistors, edge-selectable interrupts, and pin-oscillator enable for capacitive-touch sensing. The USI module provides hardware-level SPI and I²C protocol support without CPU overhead, while the Comparator_A+ module enables analog signal monitoring and slope ADC functionality.

Key Specifications

Pinout & Package

Package: 16-pin QFN (RSA), 3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad (recommended connection 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 MSP430G2212IRSA16R omits ADC10 to reduce cost and silicon area while retaining full USI, Timer_A, and comparator capability - making it optimal for digital-sensor-hub or capacitive-touch applications. Against MSP430G2112IRSA16, it doubles RAM and flash for more complex state management and firmware updates without changing PCB layout.

Availability

MSP430G2212IRSA16R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical devices, industrial control panels, and energy harvesting endpoints requiring stable component supply across long-lifecycle production programs.

Supply support for MSP430G2212IRSA16R 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 for industrial, automotive, and consumer markets.

The MSP430G2xx family targets ultra-low-power mixed-signal applications - designed specifically for extended battery life in portable measurement, sensing, and human-interface systems where energy efficiency and integration are critical.

FAQ

Does the MSP430G2212IRSA16R include an analog-to-digital converter (ADC)?

No, the MSP430G2212IRSA16R does not include the ADC10 module. This is explicitly confirmed in TI's SLAS722G datasheet: ADC10 functionality is exclusive to the MSP430G2x52 series (e.g., MSP430G2252), while the G2x12 series (including MSP430G2212IRSA16R) omits it. Applications requiring analog digitization must use MSP430G2232IRSA16 or higher variants.

What debug interface does the MSP430G2212IRSA16R support?

The MSP430G2212IRSA16R supports Spy-Bi-Wire (SBW) debug and programming using two pins: RST/NMI/SBWTDIO (pin 10) and TEST/SBWTCK (pin 11). This two-wire interface replaces full JTAG, enabling in-system programming and real-time debugging without requiring additional PCB space or connectors.

Can the MSP430G2212IRSA16R drive capacitive-touch sensors?

Yes, the MSP430G2212IRSA16R supports capacitive-touch sensing on all P1.x pins via its integrated pin-oscillator circuitry. Enabling the PinOsc bit for any P1.x pin allows self-capacitance measurement with sub-millisecond response - enabling robust touch buttons, sliders, or proximity detection without external ICs or RC networks.

What clock sources are available on the MSP430G2212IRSA16R?

The MSP430G2212IRSA16R integrates multiple clock sources: a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (1/8/12/16 MHz), an internal very-low-power low-frequency oscillator (VLO ≈ 12 kHz), and external crystal support (32 kHz via XIN/XOUT). These feed ACLK, SMCLK, and MCLK domains independently for flexible power/performance trade-offs.

Is the MSP430G2212IRSA16R pin-compatible with other devices in the G2xx family?

Yes, the MSP430G2212IRSA16R shares the same 16-pin QFN (RSA) package and pinout with other G2xx devices in that package option - including MSP430G2112IRSA16, MSP430G2232IRSA16, and MSP430G2252IRSA16. This enables hardware reuse across variants when ADC or memory requirements change.