Texas Instruments MSP430F2132IRTVT

Overview

MSP430F2132IRTVT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 8 KB Flash, 512 B RAM, a 10-bit 200-ksps ADC with internal reference and DTC, two 16-bit timers (Timer0_A3 with three capture/compare registers, Timer1_A2 with two), USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and up to 24 GPIO pins. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430F2132IRTVT datasheet, MSP430F2132IRTVT pinout, MSP430F2132IRTVT application, or MSP430F2132IRTVT equivalent, key selection criteria include its 0.1 µA off-mode current, sub-1 µs wake-up time, integrated comparator for slope A/D, calibrated DCO supporting 1–16 MHz operation without external crystal, and QFN-32 (RTV) package compatibility with space-constrained designs.

Technical Context

The MSP430F2132IRTVT implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (±1%), a 32-kHz LF oscillator, and support for HF crystals up to 16 MHz - enabling flexible clock sourcing across power modes.

Peripherals are memory-mapped and accessible via all CPU instructions. The USCI modules provide protocol-flexible serial communication: USCI_A0 supports UART with auto-baudrate detection (LIN-compliant), IrDA encoding/decoding, and synchronous SPI; USCI_B0 supports SPI and I²C master/slave operation. The ADC10 includes autoscan, sample-and-hold, and a data transfer controller that autonomously stores conversion results in RAM without CPU intervention.

Key Specifications

Pinout & Package

Package: 32-pin QFN (RTV), 5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad (connected to DVSS). Pinout validated per TI SLAS578J Rev J datasheet, Table 2 and device pinout diagrams for RTV package.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2132IRTVT, MSP430F2013IRSAT trades peripheral richness for lower cost and size, while MSP430FR2132IPW replaces Flash/ROM with FRAM for infinite write cycles but removes factory DCO calibration - requiring external timing for high-speed operation.

Availability

MSP430F2132IRTVT is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial control interfaces requiring stable component supply, long-term lifecycle support, and verified TI-authorized traceability.

Supply support for MSP430F2132IRTVT 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 leadership in ultra-low-power microcontrollers.

The MSP430F2132IRTVT belongs to the MSP430F2xx family - designed specifically for extended-battery-life applications in sensing, metering, and portable instrumentation where power efficiency, integration, and reliability are critical.

FAQ

What is the maximum operating frequency of the MSP430F2132IRTVT?

The MSP430F2132IRTVT supports up to 16 MHz operation using its internal digitally controlled oscillator (DCO), which is factory-calibrated at four frequencies (1/8/12/16 MHz) with ±1% accuracy. External HF crystals up to 16 MHz or resonators may also be used. The DCO enables fast wake-up and eliminates the need for external timing components in many applications, and the MSP430F2132IRTVT maintains full functionality across its entire 1.8 V–3.6 V supply range at this frequency.

Does the MSP430F2132IRTVT support hardware UART with automatic baud rate detection?

Yes, the MSP430F2132IRTVT's USCI_A0 module supports enhanced UART with automatic baud rate detection (LIN-compliant), allowing it to synchronize to incoming data streams without prior knowledge of the transmitter's bit rate. This feature is implemented in hardware within USCI_A0 and does not require CPU intervention. The MSP430F2132IRTVT uses this capability for robust communication in automotive diagnostics and sensor networks where master-slave timing alignment is variable.

How much SRAM and Flash memory does the MSP430F2132IRTVT include?

The MSP430F2132IRTVT integrates 512 bytes of RAM and 8 KB of Flash memory plus 256 bytes of information memory. The Flash is organized into 512-byte segments and supports in-system programming via JTAG or the onboard bootstrap loader (BSL) using UART. The MSP430F2132IRTVT's memory map reserves dedicated interrupt vectors and includes protected calibration data in information memory segment A, ensuring consistent DCO and ADC performance across units.

Can the MSP430F2132IRTVT operate from a single 2.0 V supply?

Yes, the MSP430F2132IRTVT is fully specified to operate across 1.8 V to 3.6 V, including at 2.0 V. At this voltage, it delivers 250 µA active current at 1 MHz and maintains all peripherals - including the 10-bit ADC, USCI modules, timers, and comparator - with guaranteed timing and accuracy per the SLAS578J datasheet. The MSP430F2132IRTVT's brownout detector ensures reliable reset behavior during low-voltage transients common in aging battery systems.

What debug interface does the MSP430F2132IRTVT use, and how many pins are required?

The MSP430F2132IRTVT uses the Spy-Bi-Wire (SBW) interface - a two-wire variant of JTAG - requiring only RST/NMI/SBWTDIO (Pin 5) and TEST/SBWTCK (Pin 29) for full programming and real-time emulation. This minimizes debug footprint versus standard 4-wire JTAG. The MSP430F2132IRTVT supports debugging with TI's MSP-FET430UIF and compatible tools, and SBW remains functional even in ultra-low-power modes, enabling seamless low-energy development.