Texas Instruments MSP430F2002TRSAR

Overview

MSP430F2002TRSAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 1KB Flash + 256B information memory, 128B RAM, and a 16-bit Timer_A with two capture/compare registers. It operates from 1.8 V to 3.6 V, draws 220 µA active current at 1 MHz/2.2 V, and supports sub-1 µs wake-up from standby mode. It targets battery-powered sensor nodes requiring analog signal acquisition, timing control, and minimal power budget.

For engineers reviewing the MSP430F2002TRSAR datasheet, MSP430F2002TRSAR pinout, MSP430F2002TRSAR application, or MSP430F2002TRSAR equivalent, key selection criteria include its 14-pin TSSOP (PW) package, integrated comparator_A+ (not ADC10 or SD16_A), Spy-Bi-Wire debug interface, and absence of USI or A/D converter - distinguishing it from MSP430F20x2/x3 variants.

Technical Context

The MSP430F2002TRSAR implements a 16-bit RISC CPU with constant generators and seven addressing modes, executing register-to-register operations in one CPU cycle. Its basic clock module provides ACLK, MCLK, and SMCLK sourced from internal DCO (calibrated to ±1% at 1/8/12/16 MHz), 32-kHz crystal, or external digital clock.

It features five software-selectable low-power modes (LPM0–LPM4), brownout detection, on-chip emulation logic, and security fuse-based code protection. Port P1 offers eight programmable I/O pins with individually configurable pullup/pulldown resistors and edge-selectable interrupts; Port P2 adds two I/O pins with timer and oscillator functions.

Key Specifications

Pinout & Package

Package: 14-pin Plastic Small-Outline Thin (TSSOP), suffix 'PW' - RoHS-compliant, 5.0 mm × 4.4 mm footprint, 0.65 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2001IPW, the MSP430F2002TRSAR adds full Timer_A2 capture/compare for precise event timing; compared with MSP430F2012IPW, it trades ADC10 for comparator_A+ and lower Flash density - optimizing for deterministic analog threshold detection over multi-channel digitization.

Availability

MSP430F2002TRSAR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility meter interfaces, portable medical alert buttons, and low-power HVAC zone controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MSP430F2002TRSAR 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 decades of expertise in ultra-low-power design.

The MSP430F20xx series was engineered specifically for battery-operated measurement systems where nanowatt-level standby power, rapid wake-up, and integrated analog peripherals reduce system complexity and bill-of-materials cost.

FAQ

What is the maximum operating frequency of the MSP430F2002TRSAR?

The MSP430F2002TRSAR supports a digitally controlled oscillator (DCO) calibrated to four factory-trimmed frequencies: 1 MHz, 8 MHz, 12 MHz, and 16 MHz. Its maximum guaranteed operating frequency is 16 MHz, achievable with proper supply voltage (≥2.2 V) and temperature conditions. The DCO stabilizes in less than 1 µs, enabling rapid transitions between low-power and active modes.

Does the MSP430F2002TRSAR include an analog-to-digital converter (ADC)?

No, the MSP430F2002TRSAR does not include an ADC. It belongs to the MSP430F20x1 family variant, which features the analog comparator_A+ module instead. This comparator supports 8-channel input multiplexing, hysteresis control, and CAOUT output - enabling slope A/D conversion when paired with a known current source and capacitor, but no built-in successive-approximation or sigma-delta ADC.

What debug interface does the MSP430F2002TRSAR support?

The MSP430F2002TRSAR supports Spy-Bi-Wire (SBW), a two-wire debug interface using RST/NMI/SBWTDIO and TEST/SBWTCK pins. It replaces full 4-wire JTAG, reducing PCB footprint and connector count. SBW enables flash programming, real-time emulation, breakpoint setting, and register inspection - all through the same pins used for reset and test mode selection.

Which package type corresponds to the 'TRSAR' suffix in MSP430F2002TRSAR?

The 'TRSAR' suffix indicates a 14-pin TSSOP (Thin Shrink Small Outline Package) with tape-and-reel packaging. Specifically, 'TR' denotes tape-and-reel, 'SA' identifies the TSSOP body, and 'R' confirms RoHS compliance. This matches the PW package designation in TI documentation and measures 5.0 mm × 4.4 mm with 0.65 mm lead pitch.

How does the MSP430F2002TRSAR differ from the MSP430F2003TRSAR?

The MSP430F2002TRSAR (F20x1 family) integrates comparator_A+, while the MSP430F2003TRSAR (F20x3 family) replaces it with a 16-bit sigma-delta ADC (SD16_A) and adds differential PGA inputs. Both share identical Flash/RAM size and package, but MSP430F2003TRSAR targets high-resolution sensor digitization, whereas MSP430F2002TRSAR prioritizes low-latency analog threshold detection and slope-A/D techniques.