Texas Instruments MSP430G2211IPW14

Overview

MSP430G2211IPW14 from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 2 KB flash, 128 B RAM, a 16-bit Timer_A with two capture/compare registers, an on-chip analog comparator (Comparator_A+), and 10 I/O pins in a 14-pin TSSOP package. It operates from 1.8 V to 3.6 V and supports five low-power modes, enabling sub-1 µs wake-up - ideal for battery-powered sensor nodes and portable measurement systems.

For engineers reviewing the MSP430G2211IPW14 datasheet, MSP430G2211IPW14 pinout, MSP430G2211IPW14 application, or MSP430G2211IPW14 equivalent, key selection criteria include its integrated Comparator_A+ for slope A/D conversion, Spy-Bi-Wire debug interface, 16-MHz DCO clock capability, and verified operation at 1.8 V - all critical for energy-constrained embedded designs requiring analog signal conditioning and fast interrupt response.

Technical Context

The MSP430G2211IPW14 implements a 16-bit RISC CPU with constant generators and 16 general-purpose registers, executing instructions in one CPU cycle at up to 16 MHz. Its basic clock module integrates a digitally controlled oscillator (DCO), internal low-frequency oscillator (VLO), and 32-kHz crystal support - enabling flexible clock sourcing for ACLK, MCLK, and SMCLK domains.

It features a dedicated Comparator_A+ module with eight selectable positive inputs (CA0–CA7) and CAOUT output, supporting analog threshold detection and slope-based ADC functionality. The device includes a 16-bit Timer_A2 with two capture/compare registers, programmable interrupt vectors, and full Spy-Bi-Wire emulation logic - eliminating need for external JTAG hardware.

Key Specifications

Pinout & Package

Package: 14-pin Plastic Small-Outline Thin (TSSOP), PW suffix, 5.0 mm × 4.4 mm body, 0.65 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2211IPW14, MSP430G2231IPW14 trades comparator functionality for integrated ADC performance, while MSP430FR2111IPW14 replaces flash with FRAM for infinite write endurance at the cost of analog peripheral depth - making each optimal for distinct signal acquisition architectures.

Availability

MSP430G2211IPW14 is available at Aetrix Electronics and suitable for smart sensor nodes, battery-powered data loggers, portable medical monitors, and industrial control interfaces requiring stable component supply across long-lifecycle production runs.

Supply support for MSP430G2211IPW14 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 precision analog solutions.

The MSP430G2xx family was designed specifically for cost-sensitive, battery-operated applications demanding ultralow power, integrated analog peripherals, and rapid development - exemplified by the MSP430G2211IPW14's optimized balance of comparator functionality, timer resources, and minimal footprint.

FAQ

What is the maximum operating frequency of the MSP430G2211IPW14?

The MSP430G2211IPW14 supports a maximum system clock (MCLK) frequency of 16 MHz when powered at ≥3.3 V, with factory-calibrated DCO settings for 1 MHz, 8 MHz, 12 MHz, and 16 MHz operation. At 1.8 V, the maximum guaranteed frequency is 6 MHz per TI's recommended operating conditions. The actual achievable frequency depends on supply voltage, temperature, and DCO calibration register values loaded from flash segment A.

Does the MSP430G2211IPW14 include an analog-to-digital converter (ADC)?

No, the MSP430G2211IPW14 does not include a dedicated ADC. Instead, it features the Comparator_A+ module, which - when combined with Timer_A - enables slope-based analog-to-digital conversion. This technique uses the comparator output to trigger Timer_A captures, allowing software to derive digital values from analog input ramps without requiring a separate ADC peripheral.

How many I/O pins does the MSP430G2211IPW14 have, and what are their capabilities?

The MSP430G2211IPW14 provides 10 general-purpose I/O pins: 8 on Port 1 (P1.0–P1.7) and 2 on Port 2 (P2.6–P2.7). Each pin supports individually configurable direction, pullup/pulldown resistors, and edge-selectable interrupts. P1 pins also multiplex timer, comparator, clock, and Spy-Bi-Wire functions - requiring careful pin mapping to avoid resource conflicts in application design.

What debug interface does the MSP430G2211IPW14 support, and what pins are required?

The MSP430G2211IPW14 supports the two-wire Spy-Bi-Wire (SBW) interface using RST/NMI/SBWTDIO (pin 10) and TEST/SBWTCK (pin 11). No external JTAG header is needed. During programming, TEST must be held high to enable SBW mode, and SBWTDIO serves as bidirectional data line while SBWTCK provides clock - enabling full in-system debug and flash programming with minimal PCB footprint.

Is the MSP430G2211IPW14 compatible with the MSP430G2201IPW14 in terms of pinout and software?

Yes, the MSP430G2211IPW14 and MSP430G2201IPW14 share identical 14-pin TSSOP (PW) packages and pin assignments. Software compatibility is high at the register and peripheral level, though the G2211 includes the Comparator_A+ module (absent in G2201) and has different flash/ROM configurations. Code written for G2201 will run on G2211, but accessing Comparator_A+ registers requires conditional compilation or runtime checks.