Texas Instruments MSP430F2002TRSAT

Overview

MSP430F2002TRSAT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 1KB + 256B flash memory, 128B RAM, and a 16-bit Timer_A with two capture/compare registers. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling sub-1 µs wake-up from standby - ideal for battery-powered sensor nodes and portable measurement systems.

For engineers reviewing the MSP430F2002TRSAT datasheet, MSP430F2002TRSAT pinout, MSP430F2002TRSAT application, or MSP430F2002TRSAT equivalent, key selection criteria include its TSSOP-14 package, integrated Spy-Bi-Wire debug interface, 10-bit 200-ksps ADC with internal reference and autoscan, and USI supporting SPI/I²C - all within a 128B RAM constraint.

Technical Context

The MSP430F2002TRSAT belongs to the MSP430F20x2 family and integrates a 16-bit RISC CPU with constant generators, digitally controlled oscillator (DCO) calibrated to ±1% at 1 MHz, 8-bit Port P1 and 2-bit Port P2 with individually configurable pullup/down resistors and edge-selectable interrupts. Its basic clock module delivers ACLK, SMCLK, and MCLK from internal DCO, 32-kHz crystal, or external digital source.

It implements a 10-bit successive-approximation ADC (ADC10) with eight analog inputs, internal 1.5-V reference, sample-and-hold, and data transfer controller (DTC), alongside a Universal Serial Interface (USI) configurable for SPI or I²C communication - both confirmed functional in the F20x2 variant per SLAS491I Rev. December 2012.

Key Specifications

Pinout & Package

Package: 14-pin TSSOP (PW), RoHS-compliant, body size 5.0 mm × 4.4 mm × 1.2 mm, thermal pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2002TRSAT, the MSP430F2012TRSAT offers direct flash scalability without hardware changes, while the MSP430G2553IPW20 introduces UART and larger memory at the cost of package compatibility and higher active current - making MSP430F2002TRSAT optimal for minimal-footprint, battery-constrained designs.

Availability

MSP430F2002TRSAT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial process transmitters requiring stable component supply and long-term industrial temperature support (-40°C to +105°C).

Supply support for MSP430F2002TRSAT 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 low-power analog and embedded processing solutions, with decades of expertise in ultra-low-power microcontroller design.

The MSP430F20xx series was engineered specifically for battery-operated sensing and measurement applications, emphasizing sub-microamp power states, integrated analog peripherals, and minimal external component requirements.

FAQ

What is the maximum operating frequency of the MSP430F2002TRSAT?

The MSP430F2002TRSAT supports a maximum system clock (MCLK) of 16 MHz via its factory-calibrated digitally controlled oscillator (DCO). This frequency is achievable without external crystal, using internal calibration constants stored in flash segment A (CALDCO_16MHZ/CALBC1_16MHZ), and is confirmed in the SLAS491I datasheet Rev. December 2012 for the F20x2 family. The device maintains full functionality - including ADC sampling and USI communication - at this rate.

Does the MSP430F2002TRSAT support UART communication?

No, the MSP430F2002TRSAT does not include hardware UART. It features a Universal Serial Interface (USI) module that supports SPI and I²C protocols only - as explicitly documented for the MSP430F20x2 family in SLAS491I. UART functionality would require bit-banged software implementation, which consumes CPU cycles and increases power consumption, contradicting the device's ultra-low-power design goals.

What is the purpose of the TEST/SBWTCK pin on the MSP430F2002TRSAT?

The TEST/SBWTCK pin on the MSP430F2002TRSAT serves as the Spy-Bi-Wire test clock input during programming and debug sessions. It enables 2-wire JTAG communication for in-system programming and real-time emulation. During normal operation, this pin must be held high (typically via external pull-up) to disable test mode and prevent unintended entry into debug state - a requirement specified in the SLAS491I datasheet section "Terminal Functions" for MSP430F20x2.

Can the MSP430F2002TRSAT operate without an external crystal?

Yes, the MSP430F2002TRSAT can operate entirely without an external crystal. Its internal digitally controlled oscillator (DCO) is factory-calibrated to ±1% accuracy at 1 MHz, 8 MHz, 12 MHz, and 16 MHz - providing stable clock sources for ACLK, SMCLK, and MCLK. The crystal pins (XIN/XOUT) are optional and may be used as general-purpose I/O (P2.6/P2.7) when not configured for oscillator mode, as confirmed in the MSP430F20x2 pinout tables.

How much ADC resolution and sampling speed does the MSP430F2002TRSAT provide?

The MSP430F2002TRSAT integrates a 10-bit successive-approximation ADC (ADC10) capable of 200 ksamples per second (200 ksps) maximum conversion rate. It supports eight analog input channels (A0–A7), internal 1.5-V reference, sample-and-hold, and autoscan mode - all confirmed in the SLAS491I datasheet for the MSP430F20x2 family. This resolution and speed are sufficient for precision sensor interfacing in industrial and medical applications.