Texas Instruments MSP430F2132TPWR

Overview

MSP430F2132TPWR 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 I/O pins - deployed in battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430F2132TPWR datasheet, MSP430F2132TPWR pinout, MSP430F2132TPWR application, or MSP430F2132TPWR equivalent, key selection criteria include active-mode current at 1 MHz (250 µA), standby current (0.7 µA), off-mode RAM retention (0.1 µA), 16-bit timer flexibility, and integrated analog peripherals for autonomous signal acquisition.

Technical Context

The MSP430F2132TPWR implements a digitally controlled oscillator (DCO) calibrated to ±1% across four frequencies up to 16 MHz, enabling sub-1-µs wake-up from LPM4. Its clock system delivers ACLK (from 32-kHz crystal or internal LF oscillator), SMCLK (DCO-derived), and MCLK (CPU clock) with independent gating per low-power mode.

Peripherals are memory-mapped and fully accessible via all CPU instructions. The ADC10 includes sample-and-hold, autoscan, and a dedicated Data Transfer Controller (DTC) that moves conversion results directly to RAM without CPU intervention - critical for deterministic low-power sensing sequences.

Key Specifications

Pinout & Package

Package: 28-pin TSSOP (PW), RoHS-compliant, body size 9.7 × 4.4 mm, 0.65 mm pitch. Thermal pad not present. Compatible with standard surface-mount reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2132TPWR, the MSP430F2122TPWR offers identical low-power behavior and peripheral compatibility at reduced memory capacity, while the MSP430G2553IPW28 trades factory-calibrated timing and analog integration for greater Flash headroom and UART flexibility - requiring design validation for timing accuracy and analog signal chain completeness.

Availability

MSP430F2132TPWR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical instruments, industrial data loggers, and smart energy meter interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MSP430F2132TPWR 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 MSP430F21x2 product line targets battery-constrained, measurement-intensive applications such as portable instrumentation and environmental monitoring - emphasizing sub-µA sleep currents, integrated analog peripherals, and fast wake-up responsiveness.

FAQ

What is the maximum operating frequency of the MSP430F2132TPWR?

The MSP430F2132TPWR supports a maximum system clock (MCLK) frequency of 16 MHz, achieved using the internal digitally controlled oscillator (DCO) with factory calibration to ±1% accuracy. This allows full-speed execution of 16-bit RISC instructions at 62.5-ns cycle time without requiring an external high-frequency crystal - though XIN/XOUT pins support optional 32.768-kHz or up to 16-MHz crystals for higher precision timing.

Does the MSP430F2132TPWR support in-system programming without external hardware?

Yes, the MSP430F2132TPWR supports in-system programming via its built-in Bootstrap Loader (BSL), which operates over UART using pins P1.1 (RX) and P2.2 (TX) in the TSSOP package. The BSL is password-protected and enables flash programming without JTAG hardware - ideal for field firmware updates. Full BSL functionality requires correct entry sequence and valid password; JTAG (via SBW) remains available for full debugging and secure programming.

How many ADC channels does the MSP430F2132TPWR support, and what is the reference configuration?

The MSP430F2132TPWR integrates a 10-bit ADC10 module with eight analog input channels (A0–A7), selectable via autoscan. It supports internal references of 1.5 V or 2.5 V, plus external reference inputs (REF+ and REF−). The ADC includes a sample-and-hold circuit, configurable conversion clock (ADC10CLK), and a Data Transfer Controller (DTC) that autonomously stores results in RAM - eliminating CPU involvement during burst sampling sequences.

What low-power modes are available on the MSP430F2132TPWR, and what is the lowest current draw?

The MSP430F2132TPWR offers six operating modes: Active Mode (AM) and five low-power modes (LPM0–LPM4). In LPM4 (full oscillator stop, DCO disabled, RAM retention), it draws only 0.1 µA at 2.2 V - the lowest current state. LPM3 (ACLK active, DCO off) consumes 0.2 µA, and standby mode (LPM3 with VLO) draws 0.7 µA. All modes support ultra-fast wake-up (<1 µs) via the calibrated DCO, enabling responsive yet energy-efficient operation.

Is the MSP430F2132TPWR pin-compatible with other devices in the MSP430F21x2 family?

Yes, the MSP430F2132TPWR in the 28-pin TSSOP (PW) package shares identical pinout and electrical characteristics with the MSP430F2112TPWR and MSP430F2122TPWR - differing only in Flash/RAM size and ADC channel count. This allows hardware reuse across firmware variants. However, it is not pin-compatible with the 32-pin QFN (RHB/RTV) variants due to different pin assignments and package geometry.