Texas Instruments MSP430F2003IPW

Overview

MSP430F2003IPW from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 1 KB + 256 B flash memory, 128 B RAM, a 16-bit Sigma-Delta A/D converter with differential PGA inputs and internal reference, and Universal Serial Interface (USI) supporting SPI and I2C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor front ends requiring high-precision analog measurement and low-energy communication.

For engineers reviewing the MSP430F2003IPW datasheet, MSP430F2003IPW pinout, MSP430F2003IPW application, or MSP430F2003IPW equivalent, key selection criteria include its 16-bit SD16_A ADC resolution, USI-based SPI/I2C capability, TSSOP-14 package compatibility, and sub-1 µs wake-up from LPM4 - critical for energy-constrained wireless sensing nodes.

Technical Context

The MSP430F2003IPW implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its clock system integrates a digitally controlled oscillator (DCO) calibrated to ±1% at 1 MHz, 8 MHz, 12 MHz, and 16 MHz, plus support for 32-kHz crystal and internal low-frequency oscillators.

It features two I/O ports: P1 (8-bit, with interrupt, pullup/pulldown, and peripheral multiplexing) and P2 (2-bit), alongside Timer_A2 with two capture/compare registers, brownout protection, and Spy-Bi-Wire on-chip emulation. The SD16_A module supports up to four differential input pairs with programmable gain and internal 1.2-V reference.

Key Specifications

Pinout & Package

Package: 14-pin TSSOP (PW), body size 5.0 mm × 4.4 mm, 0.65 mm pitch, lead-free and RoHS 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 MSP430F2013IPW, the MSP430F2003IPW trades flash capacity for identical analog precision and footprint; versus MSP430G2553IPW, it delivers superior 16-bit SD16_A performance at the cost of reduced memory and no UART support - making it optimal for compact, resolution-critical sensor nodes.

Availability

MSP430F2003IPW is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart meter interfaces, and industrial condition monitors requiring stable component supply and long-term manufacturability.

Supply support for MSP430F2003IPW 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 MSP430F20xx series was engineered specifically for ultra-low-power mixed-signal applications where battery life, analog measurement fidelity, and minimal system-level component count are primary constraints - exemplified by the MSP430F2003IPW's integration of SD16_A, USI, and Spy-Bi-Wire in a 14-pin TSSOP.

FAQ

What is the maximum operating frequency of the MSP430F2003IPW?

The MSP430F2003IPW supports a maximum system clock (MCLK) frequency of 16 MHz, achieved via its factory-calibrated digitally controlled oscillator (DCO). This DCO is trimmed to ±1% accuracy at 16 MHz and can be used directly without external crystal - enabling high-speed processing while retaining ultra-low-power characteristics in active mode (220 µA at 1 MHz, 2.2 V).

Does the MSP430F2003IPW support I²C communication?

Yes, the MSP430F2003IPW supports I²C communication through its Universal Serial Interface (USI) module. Pin P1.6 functions as SCL (clock) and P1.7 as SDA (data) in I²C mode. The USI provides hardware-level I²C protocol handling including start/stop generation, address matching, and ACK/NACK control - offloading timing-critical tasks from firmware.

What type of analog-to-digital converter is integrated into the MSP430F2003IPW?

The MSP430F2003IPW integrates a 16-bit Sigma-Delta A/D converter (SD16_A) with differential programmable-gain amplifier (PGA) inputs, internal 1.2-V reference, and support for up to four differential input pairs. Unlike SAR ADCs, this architecture delivers high resolution and excellent noise rejection - ideal for low-level sensor signals such as thermocouples or bridge-based transducers.

Can the MSP430F2003IPW operate from a single 1.8-V supply?

Yes, the MSP430F2003IPW 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 flash programming, SD16_A conversion, and USI communication - making it suitable for single-cell lithium or thin-film battery applications where minimum voltage headroom is critical.

Is there on-chip debug capability for the MSP430F2003IPW?

Yes, the MSP430F2003IPW includes on-chip emulation logic with Spy-Bi-Wire interface, accessible via two pins: TEST/SBWTCK and RST/NMI/SBWTDIO. This allows full in-system programming, breakpoint setting, register inspection, and real-time variable monitoring - eliminating the need for external debug probes during development and validation of MSP430F2003IPW-based designs.