Texas Instruments MSP430F2132IPWR

Overview

MSP430F2132IPWR 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 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 MSP430F2132IPWR datasheet, MSP430F2132IPWR pinout, MSP430F2132IPWR application, or MSP430F2132IPWR equivalent, key selection criteria include its sub-1 µs wake-up from 0.1 µA off-mode, integrated comparator for slope A/D, calibrated DCO enabling crystal-free operation up to 16 MHz, and Spy-Bi-Wire debug interface in a space-constrained 28-pin TSSOP package.

Technical Context

The MSP430F2132IPWR implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency, paired with five software-selectable low-power modes (LPM0–LPM4) optimized for extended battery life. Its basic clock module integrates a digitally controlled oscillator (DCO), 32-kHz LF oscillator, and HF crystal support up to 16 MHz - all configurable via dedicated control registers.

Peripherals are memory-mapped and accessible via standard instructions: the ADC10 includes autoscan, sample-and-hold, and data transfer controller (DTC); USCI modules support simultaneous UART, SPI, and I²C protocols; and Timer0_A3/Timer1_A2 provide PWM, capture, and interval timing with independent interrupt vectors and flexible clock sourcing (ACLK, SMCLK, TACLK).

Key Specifications

Pinout & Package

Package: 28-pin TSSOP (PW), 9.7 mm × 4.4 mm, 0.65 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2132IPWR, the MSP430F2122IPWR offers identical low-power performance and peripheral set at lower memory cost, while the MSP430G2553IPW trades analog integration for expanded digital I/O and communication flexibility - making each optimal for distinct firmware complexity and analog sensing requirements.

Availability

MSP430F2132IPWR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical instruments, industrial data loggers, and smart energy metering modules requiring stable component supply across long-lifecycle production programs.

Supply support for MSP430F2132IPWR 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 MSP430F2132IPWR belongs to the MSP430F2xx ultra-low-power MCU family, designed specifically for battery-operated measurement and sensing applications where nanowatt-level sleep current and fast wake-up are mandatory.

FAQ

What is the maximum operating frequency of the MSP430F2132IPWR?

The MSP430F2132IPWR supports a maximum system clock (MCLK) of 16 MHz, achieved either via external HF crystal (1–16 MHz), internal DCO calibrated to ±1% at four frequencies, or external digital clock source. The DCO enables crystal-free operation up to 16 MHz without requiring external timing components - verified in the SLAS578J datasheet Section 5.1.

Does the MSP430F2132IPWR support hardware UART with automatic baud rate detection?

Yes, the MSP430F2132IPWR's USCI_A0 module supports enhanced UART with auto-baudrate detection (LIN-compliant), as specified in the "Universal Serial Communication Interface" section of SLAS578J. This feature allows the MSP430F2132IPWR to automatically detect incoming bit rates without prior configuration - essential for interoperability in automotive and industrial bus networks.

How many analog input channels does the ADC10 module support on the MSP430F2132IPWR?

The ADC10 module on the MSP430F2132IPWR supports eight analog input channels (A0–A7), mapped to P2.0, P2.1, P2.2, P2.3, P2.4, P3.0, P3.6, and P3.7. All channels are accessible in autoscan mode, and the DTC can autonomously store results in memory - confirmed in Table 2 (Terminal Functions) and Section 6.3 of SLAS578J.

What debug interface does the MSP430F2132IPWR use, and how many pins are required?

The MSP430F2132IPWR uses the Spy-Bi-Wire (SBW) interface, a two-wire variant of JTAG that requires only RST/NMI/SBWTDIO and TEST/SBWTCK pins. This reduces debug footprint versus full 4-pin JTAG and is fully supported by TI's MSP-FET430UIF programmer - detailed in Section 1.3 and Figure 1 of SLAS578J.

Is the MSP430F2132IPWR pin-compatible with other devices in the MSP430F21x2 family?

Yes, the MSP430F2132IPWR in the 28-pin TSSOP (PW) package shares identical pinout and electrical characteristics with MSP430F2112IPWR and MSP430F2122IPWR - confirmed in Table 1 ("Available Options") and the device pinout diagram (Page 3) of SLAS578J. This enables drop-in replacement across memory variants without PCB revision.