Texas Instruments MSP430F2001TN

Overview

MSP430F2001TN from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 1KB Flash + 256B information memory, 128B RAM, and a 16-bit Timer_A with two capture/compare registers. It integrates an analog comparator (Comparator_A+), brownout detector, and Spy-Bi-Wire on-chip emulation logic. Designed for battery-powered sensor nodes and portable measurement systems, it operates from 1.8 V to 3.6 V and supports five power-saving modes.

For engineers reviewing the MSP430F2001TN datasheet, MSP430F2001TN pinout, MSP430F2001TN application, or MSP430F2001TN equivalent, key selection criteria include its 14-pin PDIP package, -40°C to 105°C temperature grade, absence of ADC or USI peripherals, and reliance on the analog comparator for signal thresholding and slope A/D conversion in resource-constrained embedded designs.

Technical Context

The MSP430F2001TN implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module provides ACLK (from internal LF oscillator or external 32-kHz crystal), SMCLK, and MCLK - with DCO calibration enabling stable operation up to 16 MHz within ±1% accuracy across voltage and temperature.

It features a single 8-bit I/O port (P1) with individually configurable pullup/pulldown resistors and edge-selectable interrupts on all eight pins, plus two P2 I/O bits. The analog comparator supports eight-channel input multiplexing, rail-to-rail inputs, and programmable hysteresis - used directly for wake-up triggering and analog event detection without ADC overhead.

Key Specifications

Pinout & Package

Package: 14-pin plastic dual inline package (PDIP), N suffix, body width 7.62 mm, lead pitch 2.54 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2001TN, MSP430F2011TN offers double Flash capacity without altering power or timing behavior, while MSP430F2002TN adds essential data conversion and serial interface capabilities - both retain identical thermal and mechanical footprints for drop-in evaluation.

Availability

MSP430F2001TN is available at Aetrix Electronics and suitable for industrial sensor nodes, portable gas detectors, and smart meter tamper detection systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MSP430F2001TN 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 and embedded processing solutions for industrial, automotive, and personal electronics markets.

The MSP430F20xx series targets ultra-low-power mixed-signal applications where battery life, small footprint, and analog integration are critical - emphasizing efficient sensor interfacing and minimal external component count.

FAQ

What is the maximum operating frequency of the MSP430F2001TN?

The MSP430F2001TN supports a digitally controlled oscillator (DCO) calibrated to four frequencies: 1 MHz, 8 MHz, 12 MHz, and 16 MHz, with ±1% accuracy across voltage and temperature. While the CPU executes instructions at 62.5 ns per cycle at 16 MHz, actual sustained operation depends on supply voltage and ambient conditions - the device is fully specified up to 16 MHz at 2.2 V to 3.6 V.

Does the MSP430F2001TN include an analog-to-digital converter (ADC)?

No, the MSP430F2001TN does not include an ADC. It belongs to the MSP430F20x1 family variant, which features only the analog comparator (Comparator_A+) for threshold detection and slope A/D conversion. For integrated ADC functionality, consider the MSP430F2002TN (10-bit ADC) or MSP430F2003TN (16-bit sigma-delta ADC) - both share the same pinout and package.

What debug interface does the MSP430F2001TN support?

The MSP430F2001TN supports Spy-Bi-Wire (SBW), a two-wire variant of JTAG implemented via RST/NMI/SBWTDIO and TEST/SBWTCK pins. This interface enables full in-system programming, flash erasure, real-time debugging, and breakpoint execution - all without requiring a 4-pin JTAG header, reducing PCB space and connector cost.

Can the MSP430F2001TN operate without an external crystal?

Yes, the MSP430F2001TN can operate entirely from its internal digitally controlled oscillator (DCO), which is factory-calibrated to 1 MHz, 8 MHz, 12 MHz, and 16 MHz. External crystals (e.g., 32-kHz watch crystal on XIN/XOUT) are optional and used only when higher timing precision or ultra-low-power real-time clock functionality is required.

What is the purpose of the CAOUT pin on the MSP430F2001TN?

The CAOUT pin (available on P1.3 and P1.7) is the output of the integrated Comparator_A+. It asserts logic-high or logic-low based on the comparison between selected analog inputs, enabling direct GPIO-level signaling, interrupt generation, or driving external circuitry - eliminating need for discrete comparator output buffering in simple threshold-detection applications.