Texas Instruments MSP430F2003TPWR

Overview

MSP430F2003TPWR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 1 KB Flash + 256 B information memory, 128 B RAM, a 16-bit Sigma-Delta ADC (SD16_A) 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 MSP430F2003TPWR datasheet, MSP430F2003TPWR pinout, MSP430F2003TPWR application, or MSP430F2003TPWR equivalent, key selection criteria include its 16-bit sigma-delta A/D converter resolution and linearity, USI-based SPI/I2C interface timing compatibility, TSSOP-14 package footprint constraints, and LPM4 standby current of 0.1 µA at 2.2 V.

Technical Context

The MSP430F2003TPWR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and efficient code density. Its basic clock module 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 Timer_A2 with two capture/compare registers, Spy-Bi-Wire on-chip emulation, brownout protection, and five software-selectable low-power modes - including LPM4 with full RAM retention and 0.1 µA draw. The SD16_A module provides 16-bit resolution, differential input pairs (A0±, A1±, A2±, A3±), 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 MSP430F2013TPWR, the MSP430F2003TPWR trades Flash capacity for lower unit cost and smaller footprint, while retaining identical analog performance and power profile; versus MSP430G2553IPW20R, it delivers superior ADC resolution and lower active current but lacks UART and has less memory.

Availability

MSP430F2003TPWR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical diagnostics, and industrial process transmitters requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for MSP430F2003TPWR 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 for industrial, automotive, and personal electronics markets.

The MSP430F20xx series was designed specifically for ultra-low-power sensing and measurement applications where battery life, analog precision, and minimal system-level BOM are critical - exemplified by the MSP430F2003TPWR's integrated SD16_A and Spy-Bi-Wire debug.

FAQ

What is the maximum operating frequency of the MSP430F2003TPWR's DCO?

The MSP430F2003TPWR's digitally controlled oscillator (DCO) is factory-calibrated to operate at up to 16 MHz with ±1% accuracy across voltage and temperature. This enables full-speed execution of time-critical tasks such as real-time sensor sampling or USI communication without requiring an external crystal, though the DCO may be configured for lower frequencies to further reduce power consumption in active mode.

Does the MSP430F2003TPWR support UART communication?

No, the MSP430F2003TPWR does not include a hardware UART peripheral. It features only the Universal Serial Interface (USI), which supports SPI and I2C protocols. UART functionality would require bit-banged software implementation on GPIO pins, which increases CPU load and reduces timing accuracy - making it unsuitable for reliable asynchronous serial communication at standard baud rates.

How many analog input channels does the SD16_A module support on the MSP430F2003TPWR?

The SD16_A module on the MSP430F2003TPWR supports four differential analog input pairs (A0±, A1±, A2±, A3±), implemented across eight dedicated pins (P1.0–P1.7). Each pair shares pins with other functions (e.g., P1.0/A0+, P1.1/A0−), and the module can perform automatic channel scanning with DMA-like data transfer via the Data Transfer Controller (DTC) when enabled.

Is the MSP430F2003TPWR pin-compatible with other devices in the MSP430F20xx family?

Yes, the MSP430F2003TPWR is pin-compatible with all TSSOP-14 variants in the MSP430F20xx family, including MSP430F2001TPWR, MSP430F2002TPWR, MSP430F2011TPWR, MSP430F2012TPWR, and MSP430F2013TPWR. All share identical pin assignments, electrical characteristics, and package dimensions - allowing hardware reuse across different memory and peripheral configurations.

What debug interface does the MSP430F2003TPWR use, and what connections are required?

The MSP430F2003TPWR uses the two-wire Spy-Bi-Wire (SBW) interface for programming and debugging, requiring only two physical connections: RST/NMI/SBWTDIO (pin 10) and TEST/SBWTCK (pin 11). This eliminates the need for a full 4-pin JTAG header, reducing PCB space and BOM count while maintaining full flash programming, breakpoint, and real-time variable inspection capabilities via compatible tools like MSP-FET or LaunchPad debuggers.