Texas Instruments MSP430F2132IRHBR

Overview

MSP430F2132IRHBR 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 targets battery-powered sensor nodes and portable instrumentation requiring sub-µA standby current and fast wake-up.

For engineers reviewing the MSP430F2132IRHBR datasheet, MSP430F2132IRHBR pinout, MSP430F2132IRHBR application, or MSP430F2132IRHBR equivalent, key selection criteria include its 0.1 µA off-mode current with RAM retention, calibrated DCO enabling <1 µs wake-up, integrated comparator for slope A/D, and QFN-32 package compatibility with space-constrained PCB layouts.

Technical Context

The MSP430F2132IRHBR implements a 16-bit RISC CPU with seven addressing modes and register-to-register execution in one cycle. Its clock system integrates a digitally controlled oscillator (DCO) calibrated to ±1% at four frequencies up to 16 MHz, plus support for 32-kHz crystal, HF crystal, resonator, or external digital clock sources.

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), IrDA encoding/decoding, and synchronous SPI; USCI_B0 supports SPI and I²C. The ADC10 includes sample-and-hold, autoscan, and data transfer controller (DTC) for autonomous conversion sequences.

Key Specifications

Pinout & Package

Package: 32-pin QFN (RHB), 5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad (connected to DVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2132IRHBR, the MSP430F2122IRHBR offers identical low-power performance and peripheral functionality at lower memory capacity, while the MSP430F2330IRHBT delivers expanded RAM and computational capability at the cost of pinout compatibility-making the MSP430F2132IRHBR optimal for balanced cost, size, and feature requirements in space-constrained, battery-operated designs.

Availability

MSP430F2132IRHBR is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical instruments, and industrial data loggers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for MSP430F2132IRHBR 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 50 years of innovation in low-power design.

The MSP430F2132IRHBR belongs to the MSP430F2xx ultra-low-power microcontroller family, engineered specifically for extended-battery-life applications in portable measurement, sensing, and instrumentation systems.

FAQ

What is the maximum operating frequency of the MSP430F2132IRHBR?

The MSP430F2132IRHBR supports a maximum system clock (MCLK) frequency of 16 MHz using its factory-calibrated digitally controlled oscillator (DCO). This frequency is achievable without external crystals, as four DCO calibration points (1/8/12/16 MHz) are stored in information memory segment A with ±1% accuracy at 3 V and 30°C.

Does the MSP430F2132IRHBR support hardware UART with automatic baudrate detection?

Yes, the MSP430F2132IRHBR's USCI_A0 module supports enhanced UART with auto-baudrate detection compliant with LIN 2.x standards. This feature allows the MSP430F2132IRHBR to automatically synchronize to incoming LIN header byte timing without prior knowledge of bus speed, simplifying master-slave communication in automotive and industrial networks.

How does the ADC10 module in the MSP430F2132IRHBR achieve autonomous operation?

The MSP430F2132IRHBR's ADC10 includes a Data Transfer Controller (DTC) that autonomously moves conversion results from ADC10MEM to RAM without CPU involvement. When configured with autoscan and DTC enabled, the MSP430F2132IRHBR can execute up to 16 consecutive conversions across selected channels and store results directly-reducing active CPU time and power consumption.

What is the function of the RST/NMI/SBWTDIO pin on the MSP430F2132IRHBR?

The RST/NMI/SBWTDIO pin on the MSP430F2132IRHBR serves three roles: active-low reset input, non-maskable interrupt input, and bidirectional Spy-Bi-Wire test data I/O. During programming and debug, it carries SBWTDIO signals; during normal operation, it resets the device or triggers NMI on falling edge, and its internal pullup ensures reliable reset assertion.

Can the MSP430F2132IRHBR operate from a single 3.0 V coin cell for multi-year deployment?

Yes, the MSP430F2132IRHBR is designed for multi-year operation from a 3.0 V coin cell: its 0.1 µA off-mode current with RAM retention, 0.7 µA standby mode, and <1 µs wake-up minimize energy loss during sleep. Combined with efficient 16-bit processing and autonomous peripherals like the DTC-enabled ADC10, the MSP430F2132IRHBR achieves >5-year runtime in typical sensor node duty cycles.