Texas Instruments MSP430G2111IPW14R

Overview

MSP430G2111IPW14R from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 1 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 battery-powered sensor nodes requiring precise analog signal comparison and low-energy wake-up.

For engineers reviewing the MSP430G2111IPW14R datasheet, MSP430G2111IPW14R pinout, MSP430G2111IPW14R application, or MSP430G2111IPW14R equivalent, key selection criteria include its 10 I/O count, Comparator_A+ channel count, LPM4 current of 0.1 µA at 2.2 V, 16-MHz DCO capability, and Spy-Bi-Wire debug interface compatibility.

Technical Context

The MSP430G2111IPW14R implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling efficient code execution in resource-constrained embedded systems. Its clock system integrates a digitally controlled oscillator (DCO), internal low-frequency oscillator (VLO), and external 32-kHz crystal support - all configurable via BCSCTL registers.

This device belongs to the MSP430G2x11 family and includes the Comparator_A+ module with eight selectable inputs (CA0–CA7) and CAOUT output, supporting slope A/D conversion and battery voltage supervision. It supports five power-saving modes, with ultrafast wake-up (<1 µs) from LPM3/LPM4 using the DCO.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2211IPW14R and MSP430G2101IPW14R, the MSP430G2111IPW14R uniquely balances 1 KB code space, integrated analog comparator functionality, and ultra-low standby current - making it the most cost-effective choice for battery-operated comparator-centric designs.

Availability

MSP430G2111IPW14R is available at Aetrix Electronics and suitable for smart metering, portable gas sensing, wireless temperature logging, and industrial monitoring applications requiring stable component supply and long-term manufacturability.

Supply support for MSP430G2111IPW14R 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 over 90 years of innovation in low-power design.

The MSP430G2x11 product line targets ultralow-power sensor acquisition and control applications, emphasizing extended battery life, integrated analog peripherals, and minimal system-level component count.

FAQ

What is the maximum operating frequency of the MSP430G2111IPW14R?

The MSP430G2111IPW14R supports a maximum DCO frequency of 16 MHz at VCC ≥ 3.3 V, with guaranteed operation up to 12 MHz at 2.7 V and 6 MHz at 1.8 V. This frequency drives the MCLK, SMCLK, and ACLK domains depending on basic clock module configuration - all programmable via BCSCTL1/BCSCTL2/DCOCTL registers. The MSP430G2111IPW14R's 16-MHz capability enables responsive real-time control while maintaining ultralow active-mode current.

Does the MSP430G2111IPW14R include a hardware ADC?

No, the MSP430G2111IPW14R does not contain a dedicated analog-to-digital converter (ADC). Instead, it features the Comparator_A+ module, which can implement slope-type A/D conversion by charging a capacitor through a known current and measuring the time required for the comparator to trip. This technique achieves effective resolution up to 12 bits with appropriate timing control - documented in TI Application Report SLAA332. The MSP430G2111IPW14R relies on this method rather than a SAR or sigma-delta ADC.

How many I/O pins does the MSP430G2111IPW14R provide?

The MSP430G2111IPW14R provides 10 usable I/O pins: eight bits on Port 1 (P1.0–P1.7) and two bits on Port 2 (P2.6–P2.7). All 10 pins support individually configurable direction, pullup/pulldown resistors, and interrupt-on-change capability. Pin P1.3 doubles as CAOUT (comparator output), and P1.0–P1.2 serve dual roles with Timer_A and Comparator_A+, but each remains a fully functional GPIO when those peripherals are disabled. No additional I/O is available beyond these 10 pins.

What debug interface does the MSP430G2111IPW14R support?

The MSP430G2111IPW14R supports the Spy-Bi-Wire (SBW) interface using two dedicated pins: TEST/SBWTCK (pin 11) and RST/NMI/SBWTDIO (pin 10). SBW is a 2-wire subset of JTAG that enables full in-system programming, flash erasure, breakpoint setting, and real-time register inspection. Unlike full JTAG, SBW requires no TDI/TDO/TMS pins - reducing PCB routing complexity. TI's MSP-FET and LaunchPad development tools natively support SBW for the MSP430G2111IPW14R.

Is the MSP430G2111IPW14R RoHS compliant and lead-free?

Yes, the MSP430G2111IPW14R is RoHS compliant and lead-free per TI's packaging standards. The 14-pin TSSOP (PW) package uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 3 requirements. TI confirms Pb-free status in the device's official packaging addendum and material content declarations - essential for compliance in EU, China, and other regulated markets. No exemptions apply; the part is fully lead-free across die, bond wires, and package.