Texas Instruments MSP430F2002IPWR

Overview

MSP430F2002IPWR from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 1 KB + 256 B flash memory, 128 B RAM, a 16-bit Timer_A with two capture/compare registers, and a universal serial interface (USI) supporting SPI and I²C protocols. It operates across 1.8 V–3.6 V, achieves active-mode current of 220 µA at 1 MHz/2.2 V, and supports five power-saving modes - ideal for battery-powered sensor nodes and portable measurement systems.

For engineers reviewing the MSP430F2002IPWR datasheet, MSP430F2002IPWR pinout, MSP430F2002IPWR application, or MSP430F2002IPWR equivalent, key selection criteria include its TSSOP-14 package, Spy-Bi-Wire debug interface, integrated USI for low-pin-count communication, and factory-calibrated DCO enabling sub-1 µs wake-up from standby mode.

Technical Context

The MSP430F2002IPWR belongs to the MSP430F20x2 family and integrates a 16-bit CPU with constant generators, a basic clock module supporting internal DCO (up to 16 MHz), 32-kHz crystal, and external digital clock sources, plus brownout detection. Its USI module provides hardware-level SPI and I²C support without dedicated peripheral pins beyond P1.4–P1.7.

It features eight programmable I/O pins on Port P1 and two on Port P2, all with individually configurable pullup/pulldown resistors and edge-selectable interrupts. The device uses a single 14-pin TSSOP (PW) package with VCC/VSS on pins 1/14 and Spy-Bi-Wire debug signals on TEST/SBWTCK (pin 11) and RST/NMI/SBWTDIO (pin 10).

Key Specifications

Pinout & Package

Package: 14-pin TSSOP (PW), 5.0 mm × 6.4 mm, 0.65 mm pitch, surface-mount. Pin 1 = VCC; Pin 14 = VSS; 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 MSP430F2012IPWR, the MSP430F2002IPWR trades flash capacity for lower unit cost and smaller footprint, while MSP430G2553IPW28 provides architectural headroom at the expense of layout compatibility and power efficiency in deep-sleep states.

Availability

MSP430F2002IPWR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and smart utility meter interfaces requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MSP430F2002IPWR 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 sensing and measurement applications where battery life, small form factor, and integrated analog peripherals are critical - targeting portable instrumentation, energy harvesting systems, and maintenance-free IoT endpoints.

FAQ

What is the maximum operating frequency of the MSP430F2002IPWR?

The MSP430F2002IPWR supports a digitally controlled oscillator (DCO) calibrated to four factory-trimmed frequencies: 1 MHz, 8 MHz, 12 MHz, and 16 MHz, with ±1% accuracy. While the core executes instructions at 62.5 ns per cycle, the maximum reliable system clock (MCLK) is 16 MHz - confirmed in the SLAS491I datasheet revision December 2012. This allows the MSP430F2002IPWR to balance speed and ultra-low power across diverse sensing workloads.

Does the MSP430F2002IPWR support UART communication?

No, the MSP430F2002IPWR does not include a hardware UART peripheral. It implements a Universal Serial Interface (USI) module that supports only SPI and I²C protocols. UART functionality would require bit-banged software implementation on GPIO pins, which increases CPU load and compromises low-power operation. For native UART, consider TI's MSP430G2xx or MSP430FRxx families - the MSP430F2002IPWR is optimized for minimal pin count and lowest possible active/standby current, not serial protocol breadth.

What debug interface does the MSP430F2002IPWR use, and how many pins are required?

The MSP430F2002IPWR uses the Spy-Bi-Wire (SBW) interface - a two-wire subset of JTAG - requiring only two dedicated pins: TEST/SBWTCK (pin 11) and RST/NMI/SBWTDIO (pin 10). This enables full flash programming, real-time debugging, and breakpoint execution without additional headers or traces. Unlike full JTAG, SBW eliminates the need for TDI/TDO/TMS pins, making it ideal for space-constrained 14-pin TSSOP layouts while retaining full development visibility into the MSP430F2002IPWR.

Can the MSP430F2002IPWR operate from a single 3.0 V coin cell battery?

Yes, the MSP430F2002IPWR operates across 1.8 V to 3.6 V, making it fully compatible with standard CR2032 (3.0 V nominal) and BR2032 (2.8 V nominal) coin cells. Its 0.1 µA off-mode current with RAM retention and 0.5 µA standby mode allow multi-year operation even with modest capacity cells. Brownout detection prevents undefined behavior during end-of-life voltage sag, and the internal DCO maintains timing accuracy without external components - all confirmed in the MSP430F2002IPWR electrical characteristics table.

How many analog input channels does the 10-bit ADC support on the MSP430F2002IPWR?

The MSP430F2002IPWR integrates a 10-bit successive-approximation ADC with eight analog input channels (A0–A7), mapped directly to P1.0 through P1.7. These inputs support single-ended or differential sampling, internal reference (1.5 V or 2.5 V), and autoscan mode for sequential conversion without CPU intervention. All eight channels are accessible in the 14-pin TSSOP package - no multiplexing or pin sharing required - enabling simultaneous monitoring of multiple sensors in compact designs using the MSP430F2002IPWR.