Texas Instruments MSP430F2001IN

Overview

MSP430F2001IN 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 - designed for battery-powered sensor nodes requiring sub-1µs wake-up from standby mode.

For engineers reviewing the MSP430F2001IN datasheet, MSP430F2001IN pinout, MSP430F2001IN application, or MSP430F2001IN equivalent, key selection criteria include its 14-pin PDIP package, absence of ADC or USI peripherals (distinguishing it from F20x2/F20x3 variants), and verified operation across –40°C to +85°C industrial temperature range.

Technical Context

The MSP430F2001IN implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module supports internal DCO (calibrated at 1/8/12/16 MHz), 32-kHz crystal, or external digital clock source - enabling active-mode operation at up to 16 MHz with <1 µs wake-up from LPM4.

It features five power-saving modes (LPM0–LPM4), programmable I/O with pullup/pulldown resistors on all 10 pins (P1.0–P1.7, P2.6–P2.7), and interrupt capability on all port pins. The analog comparator supports eight-channel input multiplexing and slope A/D conversion, but no integrated ADC or serial interface.

Key Specifications

Pinout & Package

Package: 14-pin plastic dual-inline package (PDIP), N suffix per TI ordering nomenclature. Pin count and layout match MSP430F20x1 family specification.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2001IN, MSP430F2011IN offers double Flash capacity without altering power profile or I/O, while MSP430F2002IN trades comparator capability for ADC functionality - making each variant optimal for distinct signal-conditioning strategies in constrained environments.

Availability

MSP430F2001IN is available at Aetrix Electronics and suitable for industrial sensor nodes, portable safety detectors, smart meter tamper monitoring, and low-cost PLC input modules requiring stable component supply and long-term manufacturability.

Supply support for MSP430F2001IN 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 - prioritizing nanowatt operation, fast wake-up, and integrated analog functions in minimal pin-count packages.

FAQ

What is the maximum operating frequency of the MSP430F2001IN?

The MSP430F2001IN supports a maximum CPU clock frequency of 16 MHz via its factory-calibrated digitally controlled oscillator (DCO). This is confirmed in the SLAS491I datasheet Section "Basic Clock Module Configurations", which lists internal DCO frequencies up to 16 MHz with ±1% calibration accuracy. The device achieves this speed while maintaining ultra-low power consumption - 220 µA active current at 1 MHz, 2.2 V.

Does the MSP430F2001IN include an analog-to-digital converter (ADC)?

No, the MSP430F2001IN does not include an ADC. It belongs to the MSP430F20x1 family variant, which features only the analog comparator (Comparator_A+) - not the 10-bit ADC found in MSP430F20x2 or the 16-bit sigma-delta ADC in MSP430F20x3. This distinction is explicitly stated in the datasheet's "DESCRIPTION" section and functional block diagrams.

What debug interface does the MSP430F2001IN support?

The MSP430F2001IN supports the Spy-Bi-Wire (SBW) interface - a two-wire subset of JTAG using RST/NMI/SBWTDIO and TEST/SBWTCK pins. This is documented in the "FEATURES" list ("On-Chip Emulation Logic With Spy-Bi-Wire Interface") and confirmed in Table 2 (Terminal Functions). Full 4-wire JTAG is not supported on this device.

Is the MSP430F2001IN pin-compatible with other MSP430F20xx devices in the same package?

Yes, the MSP430F2001IN is pin-compatible with MSP430F2011IN, MSP430F2002IN, MSP430F2012IN, MSP430F2003IN, and MSP430F2013IN in the 14-pin PDIP (N) package. All share identical pin numbering, electrical characteristics, and I/O mapping per Tables 2–4 in SLAS491I - enabling drop-in replacement where peripheral requirements align.

What is the purpose of the CAOUT pin on the MSP430F2001IN?

The CAOUT pin (P1.3 and P1.7) provides the output signal of the integrated Comparator_A+. It asserts logic-high or logic-low based on the comparison result between selected analog inputs, enabling direct connection to LEDs, MOSFET gates, or interrupt-capable GPIOs - allowing hardware-level decision-making without CPU intervention. This behavior is defined in Table 2 and the "Comparator_A+" functional description.