Texas Instruments MSP430G2112IPW14

Overview

MSP430G2112IPW14 from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 14-pin TSSOP packaging, featuring 1 kB Flash, 128 B RAM, one 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) for SPI/I²C, and an on-chip analog comparator. 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 MSP430G2112IPW14 datasheet, MSP430G2112IPW14 pinout, MSP430G2112IPW14 application, or MSP430G2112IPW14 equivalent, key selection criteria include its 14-pin TSSOP footprint, absence of integrated ADC10 (distinguishing it from G2x52 variants), Spy-Bi-Wire debug interface, and capacitive-touch-capable I/O pins - all critical for compact, low-cost embedded control designs.

Technical Context

The MSP430G2112IPW14 implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, constant generators, and register-based architecture optimized for code efficiency. Its clock system integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies up to 16 MHz, plus LF oscillator and external crystal support.

It features two 8-bit I/O ports (P1 and P2), with P1 supporting edge-selectable interrupts and individually configurable pullup/pulldown resistors; USI provides hardware-level SPI and I²C protocol handling; and Comparator_A+ offers eight input channels for voltage monitoring or slope ADC applications - all without ADC10 functionality (confirmed absent per Table 1 and functional block diagrams).

Key Specifications

Pinout & Package

Package: 14-pin TSSOP (PW package), 5.0 mm × 6.4 mm body, 0.65 mm pitch, surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.

Compared with MSP430G2212IPW14, the MSP430G2112IPW14 trades memory capacity for identical low-power performance and peripheral set; versus MSP430G2102IPW14, it adds essential analog and communication capability at minimal BOM impact - making it the optimal balance for sensor-edge applications requiring both intelligence and efficiency.

Availability

MSP430G2112IPW14 is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial control panels requiring stable component supply, long-term manufacturability, and TI's industry-standard MSP430 ecosystem support.

Supply support for MSP430G2112IPW14 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 technologies for industrial, automotive, and consumer applications.

The MSP430G2xx family targets ultra-low-power embedded control, emphasizing extended battery life, integrated analog peripherals, and rapid development through consistent toolchain and documentation across variants.

FAQ

Does the MSP430G2112IPW14 include an integrated ADC?

No, the MSP430G2112IPW14 does not include an ADC10 module. Per Table 1 and the functional block diagram for MSP430G2x12, ADC10 is exclusive to the G2x52 series. The MSP430G2112IPW14 relies on its Comparator_A+ for analog threshold detection but requires external ADC hardware for digitization tasks. This distinction is confirmed in the device summary and pin function table.

What debug interface does the MSP430G2112IPW14 support?

The MSP430G2112IPW14 supports Spy-Bi-Wire (SBW) via pins RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). This two-wire interface enables full in-system programming, real-time debugging, and flash memory access without requiring a full 4-pin JTAG header - reducing PCB footprint and BOM count while maintaining TI's standard Code Composer Studio compatibility.

Can the MSP430G2112IPW14 operate from a single 1.8 V supply?

Yes, the MSP430G2112IPW14 is fully specified to operate across 1.8 V to 3.6 V, including at the 1.8 V minimum. Its ultra-low-power design maintains full functionality - including 16 MHz DCO operation, Timer_A, USI, and Comparator_A+ - at this voltage. This enables direct use with single-cell lithium primary or rechargeable batteries without voltage boosting or regulation.

How many I/O pins does the MSP430G2112IPW14 provide in the 14-pin TSSOP package?

The MSP430G2112IPW14 provides eight programmable I/O pins on Port 1 (P1.0–P1.7) and six on Port 2 (P2.0–P2.5), totaling 14 usable I/O terminals. Pins XIN (P2.6) and XOUT (P2.7) are dual-function: they serve as crystal oscillator inputs/outputs but can also operate as general-purpose I/O when the crystal oscillator is disabled - confirmed in Table 2 and the pinout diagrams.

Is the MSP430G2112IPW14 pin-compatible with other MSP430G2xx 14-pin TSSOP devices?

Yes, the MSP430G2112IPW14 shares identical pinout and electrical characteristics with other MSP430G2xx 14-pin TSSOP variants (e.g., MSP430G2212IPW14, MSP430G2312IPW14), as defined in the PW package drawings and Table 2. This allows drop-in replacement within the same family for memory or peripheral scaling - provided firmware accounts for differences in Flash size, RAM, and peripheral presence (e.g., no ADC10 in G2x12).