Texas Instruments MSP430G2211IRSA16T

Overview

MSP430G2211IRSA16T from Texas Instruments is an ultralow-power 16-bit RISC mixed-signal microcontroller with 2 KB flash, 128 B RAM, a 16-bit Timer_A with two capture/compare registers, an on-chip analog comparator (Comparator_A+), and support for 1.8–3.6 V operation. It operates in five low-power modes, achieves sub-1 µs wake-up from standby, and targets battery-powered sensor systems requiring precise analog signal capture and digital processing.

For engineers reviewing the MSP430G2211IRSA16T datasheet, MSP430G2211IRSA16T pinout, MSP430G2211IRSA16T application, or MSP430G2211IRSA16T equivalent, this page delivers verified technical context, validated pin functions, confirmed power/performance specs, and real-world use cases for embedded sensing, portable instrumentation, and energy-constrained control designs.

Technical Context

The MSP430G2211IRSA16T integrates a 16-bit CPU with constant generators, a digitally controlled oscillator (DCO) calibrated to 1 MHz (extendable to 16 MHz), and a basic clock module supporting ACLK (32 kHz crystal or internal LF oscillator), SMCLK, and MCLK. Its architecture enables single-cycle instruction execution and efficient code density.

It features one 8-bit I/O port (P1) with interrupt-capable pins, two P2 I/O bits, a 2-channel Comparator_A+ with eight selectable inputs (CA0–CA7), and Spy-Bi-Wire debug interface. The device lacks UART, SPI, or I²C peripherals-communication relies on bit-banged GPIO or external transceivers.

Key Specifications

Pinout & Package

Package: 16-pin QFN (RSA), 3 mm × 3 mm, exposed thermal pad (recommended to connect to DVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2231IRSA16 and MSP430G2553IRHB32, the MSP430G2211IRSA16T provides the smallest footprint and lowest static power among TI's G2x11 family, making it ideal for size- and energy-constrained applications where UART or high-resolution ADC are unnecessary.

Availability

MSP430G2211IRSA16T is available at Aetrix Electronics and suitable for portable environmental sensors, battery-powered data loggers, industrial monitors, and smart meter tamper detection systems requiring stable component supply and long-term manufacturability.

Supply support for MSP430G2211IRSA16T 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 expertise in low-power microcontrollers and signal chain solutions.

The MSP430G2xx series was designed specifically for ultralow-power, cost-sensitive embedded sensing and measurement applications - prioritizing extended battery life, integrated analog functionality, and minimal external component count.

FAQ

What is the maximum operating frequency of the MSP430G2211IRSA16T?

The MSP430G2211IRSA16T supports a maximum MCLK frequency of 16 MHz when VCC ≥ 3.3 V and duty cycle is 50% ± 10%. At 2.7 V, the maximum is 12 MHz; at 1.8 V, it is 6 MHz. These limits are defined by the DCO's electrical characteristics and ensure reliable CPU and peripheral operation under all recommended supply conditions.

Does the MSP430G2211IRSA16T include a hardware UART or SPI interface?

No, the MSP430G2211IRSA16T does not include dedicated UART, SPI, or I²C hardware peripherals. Communication must be implemented via bit-banged GPIO or by adding external transceivers. This omission reduces silicon area and power consumption, aligning with its role as a minimal, ultra-low-power sensor controller.

How many analog comparator inputs does the MSP430G2211IRSA16T support?

The MSP430G2211IRSA16T includes the Comparator_A+ module with eight selectable analog inputs: CA0 through CA7. These are mapped to P1.0–P1.3, P1.4–P1.7, and P2.6–P2.7 - enabling flexible analog signal routing for slope A/D conversion, battery monitoring, or window-comparator configurations.

What debug interface does the MSP430G2211IRSA16T use?

The MSP430G2211IRSA16T uses the Spy-Bi-Wire (SBW) interface, a two-wire variant of JTAG that requires only RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). This enables full programming, debugging, and emulation with minimal PCB footprint - no 4-pin JTAG header is needed.

Is the MSP430G2211IRSA16T pin-compatible with other MSP430G2x11 devices in the RSA package?

Yes, all MSP430G2x11 devices in the 16-pin QFN (RSA) package - including MSP430G2211IRSA16, MSP430G2201IRSA16, MSP430G2111IRSA16, and MSP430G2101IRSA16 - share identical pinouts and mechanical dimensions. Functional differences (e.g., comparator presence, flash size) do not affect physical compatibility.