Texas Instruments MSP430F2132TPW

Overview

MSP430F2132TPW 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 comparator_A+. It operates from 1.8 V to 3.6 V and supports active mode current of 250 µA at 1 MHz/2.2 V, standby mode at 0.7 µA, and off mode with RAM retention at 0.1 µA - ideal for battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430F2132TPW datasheet, MSP430F2132TPW pinout, MSP430F2132TPW application, or MSP430F2132TPW equivalent, key selection considerations include its TSSOP-28 package, integrated brownout detector, Spy-Bi-Wire debug interface, calibrated DCO enabling sub-1-µs wake-up from LPM4, and dual USCI modules supporting concurrent UART and I²C communication in space-constrained embedded designs.

Technical Context

The MSP430F2132TPW implements a 16-bit RISC CPU with seven addressing modes and 16 general-purpose registers, executing register-to-register instructions in one CPU clock cycle. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% across four frequencies up to 16 MHz, plus support for 32-kHz crystal, HF crystal (≤16 MHz), resonator, or external digital clock.

Peripherals are memory-mapped and accessible via standard instructions: ADC10 includes sample-and-hold, autoscan, and data transfer controller (DTC); USCI_A0 supports LIN auto-baudrate detection and IrDA encoding/decoding; USCI_B0 handles both SPI and I²C protocols; Comparator_A+ enables slope A/D conversion and analog signal monitoring without CPU intervention.

Key Specifications

Pinout & Package

Package: 28-pin TSSOP (PW), 9.7 mm × 4.4 mm, 0.65 mm pitch, surface-mount. Pinout validated per TI SLAS578J Rev J (Jan 2012), Table 2 and Device Pinout diagram.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2132IPW, the MSP430F2132TPW adds guaranteed operation up to +105°C without derating, making it suitable for thermally demanding industrial placements; versus MSP430F2330TPW, it trades higher ADC resolution and RAM for lower active current and smaller die size - preserving battery life in simple sensor-edge applications.

Availability

MSP430F2132TPW is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical instruments, industrial data loggers, and smart meter interface modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MSP430F2132TPW 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 expertise in ultra-low-power design.

The MSP430F2132TPW belongs to the MSP430F2xx ultra-low-power microcontroller family, engineered specifically for battery-operated measurement and sensing applications where energy efficiency, integration, and reliability are critical.

FAQ

What is the maximum operating frequency of the MSP430F2132TPW?

The MSP430F2132TPW supports a maximum system clock (MCLK) frequency of 16 MHz, achieved using the internal digitally controlled oscillator (DCO) calibrated to ±1% accuracy at 3 V and 30°C. External crystal oscillators up to 16 MHz are also supported on XIN/XOUT pins. This allows deterministic real-time execution for time-critical sensor sampling and communication tasks within the MSP430F2132TPW's ultra-low-power envelope.

Does the MSP430F2132TPW support in-system programming?

Yes, the MSP430F2132TPW supports in-system programming via its Spy-Bi-Wire (SBW) interface using tools like the MSP-FET430UIF. It also includes a bootstrap loader (BSL) accessible through UART pins (P1.1/P2.2), enabling flash reprogramming without JTAG hardware. Both methods preserve the MSP430F2132TPW's security fuse and allow field firmware updates while maintaining code protection.

How many analog input channels does the ADC10 module support on the MSP430F2132TPW?

The ADC10 module on the MSP430F2132TPW 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. These channels can be scanned automatically in sequence using the autoscan feature, and conversion results are transferred directly to memory via the data transfer controller (DTC) - all without CPU involvement, reducing power and latency in the MSP430F2132TPW.

Can the MSP430F2132TPW operate without an external crystal?

Yes, the MSP430F2132TPW can operate entirely from its internal digitally controlled oscillator (DCO), which is factory-calibrated at four frequencies (1/8/12/16 MHz) with ±1% accuracy at 3 V/30°C. This eliminates the need for external crystals or resonators in cost-sensitive or space-constrained designs, while still enabling fast wake-up (<1 µs) and stable timing for UART, ADC, and timer functions in the MSP430F2132TPW.

What debug interface does the MSP430F2132TPW use?

The MSP430F2132TPW uses the Spy-Bi-Wire (SBW) interface - a two-wire variant of JTAG - for debugging and programming. It requires only RST/NMI/SBWTDIO (pin 7) and TEST/SBWTCK (pin 1) for full-speed emulation, flash programming, and real-time breakpoint control. This minimal pin count preserves I/O resources and simplifies PCB layout compared to standard 4-wire JTAG, making it ideal for compact designs using the MSP430F2132TPW.