Texas Instruments MSP430G2352IPW14

Overview

MSP430G2352IPW14 from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring a 10-bit ADC, Universal Serial Interface (USI) for SPI/I²C, one 16-bit Timer_A with three capture/compare registers, and up to 16 capacitive-touch enabled I/O pins. It operates from 1.8 V to 3.6 V, draws 220 µA in active mode at 1 MHz/2.2 V, and supports five power-saving modes - ideal for battery-powered sensor nodes and portable measurement systems.

For engineers reviewing the MSP430G2352IPW14 datasheet, MSP430G2352IPW14 pinout, MSP430G2352IPW14 application, or MSP430G2352IPW14 equivalent, key selection criteria include its 14-pin TSSOP package, integrated ADC10 with internal reference and autoscan, USI-based serial communication, low-power timer architecture, and Spy-Bi-Wire debug interface compatibility.

Technical Context

The MSP430G2352IPW14 implements a 16-bit RISC CPU with 62.5-ns instruction cycle time and constant generators for optimized code efficiency. Its clock system integrates a digitally controlled oscillator (DCO), internal LF oscillator, and 32-kHz crystal support - enabling sub-1-µs wake-up from standby mode.

It features a dedicated ADC10 module with 8-channel analog input multiplexing, sample-and-hold, internal 1.5-V/2.5-V reference, and data transfer controller (DTC) for autonomous conversions. The USI module provides hardware-level SPI and I²C protocol handling without CPU intervention.

Key Specifications

Pinout & Package

Package: 14-pin Thin Shrink Small Outline Package (TSSOP), body width 4.4 mm, pitch 0.65 mm, JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2452IPW14, the MSP430G2352IPW14 offers identical low-power performance and peripheral set at lower flash density - optimizing cost for fixed-function sensor nodes. Versus MSP430FR2355IPW14, it trades FRAM advantages for proven flash reliability and lower unit cost in volume production.

Availability

MSP430G2352IPW14 is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and energy harvesting IoT endpoints requiring stable component supply and long-term manufacturability.

Supply support for MSP430G2352IPW14 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 with deep expertise in low-power design and mixed-signal integration.

The MSP430G2x52 product line was engineered for ultra-low-power portable measurement and sensing applications - prioritizing nanowatt operation, integrated analog peripherals, and minimal external component count.

FAQ

What is the maximum operating frequency of the MSP430G2352IPW14?

The MSP430G2352IPW14 supports an internal digitally controlled oscillator (DCO) calibrated up to 16 MHz, with factory-trimmed settings stored in information memory. Its 16-bit RISC CPU achieves a 62.5-ns instruction cycle time at this frequency, enabling real-time response in sensor acquisition and control loops without external crystals.

Does the MSP430G2352IPW14 support hardware I²C communication?

Yes, the MSP430G2352IPW14 includes a Universal Serial Interface (USI) module that natively supports I²C master mode. Pins P1.6 (SCL) and P1.7 (SDA) are dedicated for this function, and the USI handles clock stretching, ACK/NACK generation, and address matching in hardware - freeing the CPU for other tasks during bus transactions.

How many analog input channels does the ADC10 module on the MSP430G2352IPW14 support?

The ADC10 module on the MSP430G2352IPW14 supports eight analog input channels (A0–A7), accessible via P1.0 through P1.7. These channels can be scanned automatically in sequence using the autoscan feature, and the internal 1.5-V or 2.5-V reference eliminates the need for external voltage references in most precision sensing applications.

Can the MSP430G2352IPW14 operate from a single 1.8-V supply?

Yes, the MSP430G2352IPW14 is fully specified to operate across a supply range of 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including ADC10 operation, USI communication, and Timer_A timing - making it suitable for single-cell Li-ion or two-cell alkaline battery systems without voltage regulation.

What debug interface does the MSP430G2352IPW14 use, and how many pins are required?

The MSP430G2352IPW14 uses the Spy-Bi-Wire (SBW) interface, a two-wire variant of JTAG. It requires only two pins - RST/NMI/SBWTDIO (pin 10) and TEST/SBWTCK (pin 11) - enabling in-circuit debugging and programming with minimal PCB footprint and no external programming voltage.