Texas Instruments MSP430F2002IN

Overview

MSP430F2002IN from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 1KB + 256B flash memory, 128B RAM, and a 16-bit Timer_A with two capture/compare registers. It integrates a versatile analog comparator (Comparator_A+), brownout protection, and Spy-Bi-Wire on-chip emulation - designed for battery-powered sensor nodes requiring sub-1µs wake-up and <0.5 µA standby current.

For engineers reviewing the MSP430F2002IN datasheet, MSP430F2002IN pinout, MSP430F2002IN application, or MSP430F2002IN equivalent, key selection criteria include its PDIP-14 package compatibility, 1.8–3.6 V supply range, five power-saving modes, and absence of integrated ADC or USI - distinguishing it from MSP430F20x2/x3 variants.

Technical Context

The MSP430F2002IN implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module supports internal DCO (calibrated to ±1% at 1 MHz, 8 MHz, 12 MHz, 16 MHz), 32-kHz crystal, and external digital clock sources - enabling fast wake-up (<1 µs) from LPM4.

It features one 8-bit I/O port (P1) with individually configurable pullup/pulldown resistors and interrupt edge select, plus two P2 pins (XIN/XOUT) usable as general-purpose I/O. No ADC, USI, or sigma-delta converter is present - confirming its identity as the MSP430F20x1 family member with analog comparator only.

Key Specifications

Pinout & Package

Package: 14-pin plastic dual-inline package (PDIP-N), 0.3-inch width, through-hole mount. Pinout validated per TI SLAS491I Rev. I (December 2012), Table 2 (MSP430F20x1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2001IN, the MSP430F2002IN adds essential analog comparator functionality without increasing pin count or power; versus MSP430F2012IN, it trades ADC/USI for lower cost and simpler firmware - ideal for comparator-centric, cost-sensitive sensor endpoints.

Availability

MSP430F2002IN is available at Aetrix Electronics and suitable for battery-powered sensor nodes, smoke detectors, and industrial proximity switches requiring stable component supply across extended product lifecycles.

Supply support for MSP430F2002IN 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 emphasis on energy efficiency and reliability.

The MSP430F20xx series was designed specifically for ultra-low-power mixed-signal applications - targeting portable instrumentation, wireless sensor networks, and energy-harvesting systems where microamp-level operation and rapid wake-up are mandatory.

FAQ

What is the maximum operating frequency of the MSP430F2002IN?

The MSP430F2002IN supports internal DCO frequencies up to 16 MHz (factory-calibrated), with typical operation at 1 MHz or 8 MHz for optimal power/performance balance. External clock sources up to 16 MHz are also accepted via XIN, but the device's performance specifications (e.g., 220 µA @ 1 MHz) are characterized at 1 MHz - higher frequencies increase active current proportionally.

Does the MSP430F2002IN include an analog-to-digital converter (ADC)?

No, the MSP430F2002IN does not include an ADC. It belongs to the MSP430F20x1 family, which features only the Comparator_A+ module - not the 10-bit ADC10 (found in MSP430F20x2) or 16-bit SD16_A (in MSP430F20x3). Analog signal digitization must be implemented externally or via slope-A/D techniques using the comparator and Timer_A.

Can the MSP430F2002IN be programmed in-system without external hardware?

Yes, the MSP430F2002IN supports in-system programming via its integrated Spy-Bi-Wire interface using only two pins: RST/NMI/SBWTDIO and TEST/SBWTCK. No external programming voltage is required - the device draws programming power from VCC, enabling field firmware updates with minimal circuitry.

What is the purpose of the CAOUT pin on the MSP430F2002IN?

The CAOUT pin (P1.3 and P1.7) provides the output of the internal Comparator_A+. It delivers a clean digital signal reflecting the comparison result between selected analog inputs, enabling direct connection to timers, GPIO interrupts, or external logic - eliminating need for external comparators in threshold-detection applications.

Is the MSP430F2002IN pin-compatible with other MSP430F20xx devices in PDIP-14 package?

Yes, all MSP430F20xx devices in the N (PDIP-14) package share identical pinouts per TI SLAS491I. However, peripheral functionality differs: MSP430F2002IN exposes Comparator_A+ signals on P1.x, while MSP430F2012IN maps ADC10 and USI functions to the same pins - requiring firmware and schematic review before substitution.