Texas Instruments MSP430F2002IRSAT

Overview

MSP430F2002IRSAT 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, draws 220 µA at 1 MHz/2.2 V in active mode, and supports five power-saving modes - including sub-1 µs wake-up from standby - for battery-powered sensor interface applications.

For engineers reviewing the MSP430F2002IRSAT datasheet, MSP430F2002IRSAT pinout, MSP430F2002IRSAT application, or MSP430F2002IRSAT equivalent, this page delivers verified technical context, package mapping, functional pin roles, real-world use cases, and validated alternative options aligned to TI's SLAS491I specification.

Technical Context

The MSP430F2002IRSAT implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% at 1 MHz, 8 MHz, 12 MHz, and 16 MHz, plus internal low-frequency and external crystal (32 kHz) support.

This device belongs to the MSP430F20x2 family variant and includes the Universal Serial Interface (USI) supporting SPI and I²C protocols, a 10-bit 200-ksps ADC with internal reference and autoscan, and brownout detection. It lacks the sigma-delta ADC of the F20x3 series and the analog comparator of the F20x1 series.

Key Specifications

Pinout & Package

Package: 16-pin QFN (RSA), 4.0 mm × 4.0 mm, 0.65 mm pitch, exposed thermal pad (recommended connection to VSS).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MSP430F2002IRSAT, the MSP430F2012IRSAT offers double flash capacity with identical functionality and pin compatibility, while the MSP430G2231IPW provides equivalent analog/digital capability in a smaller TSSOP package but requires JTAG instead of Spy-Bi-Wire for programming.

Availability

MSP430F2002IRSAT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable metering devices, and industrial process monitors requiring stable component supply across extended product lifecycles.

Supply support for MSP430F2002IRSAT 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 power efficiency and system integration.

The MSP430F20xx series targets ultra-low-power sensor interface and measurement applications, combining minimal active current, fast wake-up, and integrated analog peripherals to extend battery life in compact form factors.

FAQ

What is the maximum operating frequency of the MSP430F2002IRSAT?

The MSP430F2002IRSAT supports a maximum DCO frequency of 16 MHz, factory-calibrated to ±1% accuracy. This allows the CPU to execute instructions at up to 16 million cycles per second, with 62.5-ns instruction cycle time. The device does not require an external crystal to achieve this speed, as the internal DCO is sufficient for most timing-critical applications. MSP430F2002IRSAT maintains full functionality across its 1.8–3.6 V supply range at this frequency.

Does the MSP430F2002IRSAT include a hardware UART peripheral?

No, the MSP430F2002IRSAT does not include a dedicated UART peripheral. It features the Universal Serial Interface (USI), which supports SPI and I²C protocols in hardware, but requires bit-banged software implementation for UART/SCI functionality. This design choice reduces silicon area and power consumption while retaining flexibility for common synchronous interfaces. MSP430F2002IRSAT users implementing serial communication must allocate GPIO and timer resources for UART emulation if asynchronous communication is required.

What package type and pin count does the MSP430F2002IRSAT use?

The MSP430F2002IRSAT uses a 16-pin QFN package (RSA), measuring 4.0 mm × 4.0 mm with 0.65 mm pitch and an exposed thermal pad. This package is distinct from the 14-pin TSSOP (PW) and 14-pin PDIP (N) variants offered in the same family. The RSA package provides improved thermal performance and board space efficiency, and the thermal pad must be connected to VSS for optimal operation. MSP430F2002IRSAT shares pin assignments with other MSP430F20x2 devices in the RSA footprint.

Can the MSP430F2002IRSAT operate from a single 1.8-V supply?

Yes, the MSP430F2002IRSAT is fully specified to operate from 1.8 V to 3.6 V, with all peripherals-including the 10-bit ADC, USI, and Timer_A-functional across this range. At 1.8 V, the maximum supported DCO frequency is 1 MHz per TI SLAS491I, ensuring reliable operation in ultra-low-voltage battery systems such as single-cell LiFePO₄ or two-cell alkaline configurations. MSP430F2002IRSAT maintains 0.5 µA standby current and brownout detection functionality even at minimum supply voltage.

How is programming and debugging performed on the MSP430F2002IRSAT?

Programming and debugging of the MSP430F2002IRSAT is performed via the Spy-Bi-Wire (SBW) interface using two pins: TEST/SBWTCK (clock input) and RST/NMI/SBWTDIO (bidirectional data). This 2-wire interface replaces traditional 4-wire JTAG, reducing PCB routing complexity and connector count. TI's MSP-FET and compatible debuggers support SBW natively. MSP430F2002IRSAT does not require external programming voltage - all operations occur at core supply voltage - and supports in-system programming through the same interface used for runtime debugging.