Texas Instruments MSP430F2132CY

Overview

MSP430F2132CY 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 operation.

For engineers reviewing the MSP430F2132CY datasheet, MSP430F2132CY pinout, MSP430F2132CY application, or MSP430F2132CY equivalent, key selection criteria include verified 0.1 µA off-mode current with RAM retention, calibrated DCO accuracy of ±1% across 1–16 MHz, LIN-compliant auto-baudrate UART, and confirmed TSSOP-28 (PW) package compatibility with Spy-Bi-Wire debug interface.

Technical Context

The MSP430F2132CY implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its clock system integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies, a 32-kHz crystal oscillator input, and support for external HF crystals up to 16 MHz - enabling wake-up from LPM4 in under 1 µs.

Peripherals are memory-mapped and accessible via all CPU instructions. The ADC10 includes autoscan, sample-and-hold, and a data transfer controller (DTC) that autonomously stores conversion results to RAM without CPU intervention. The comparator_A+ supports slope A/D conversion and battery voltage monitoring.

Key Specifications

Pinout & Package

Package: 28-pin TSSOP (PW), RoHS-compliant, body size 9.7 × 4.4 mm, 0.65 mm pitch. Pinout validated per TI SLAS578J Rev J (2012) for MSP430F2132IPW variant; CY suffix denotes same PW package with extended temperature grade (–40°C to 105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2122IPW, the MSP430F2132CY provides double flash and info memory for complex algorithms and calibration tables; versus MSP430G2553IPW, it retains critical analog features (Comparator_A+, LIN UART, internal ADC reference) essential for sensor front-end integration.

Availability

MSP430F2132CY is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical instruments, smart utility meter interfaces, and industrial data loggers requiring stable component supply across extended temperature ranges.

Supply support for MSP430F2132CY 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.

The MSP430F21x2 product line was designed specifically for ultra-low-power portable measurement applications - emphasizing sub-µA sleep currents, integrated analog peripherals, and fast wake-up for intermittent sensing duty cycles.

FAQ

What is the maximum operating frequency of the MSP430F2132CY?

The MSP430F2132CY supports a maximum system clock (MCLK) frequency of 16 MHz, achieved using the internal digitally controlled oscillator (DCO) with factory calibration or an external HF crystal up to 16 MHz. Its 16-bit RISC core executes instructions at 62.5 ns per cycle at this speed, and all peripherals - including ADC10, timers, and USCI modules - are fully functional at 16 MHz.

Does the MSP430F2132CY support LIN bus communication?

Yes, the MSP430F2132CY supports LIN bus communication through its USCI_A0 module, which implements enhanced UART with automatic baudrate detection (LIN). This feature allows the MSP430F2132CY to act as a LIN slave node without external transceivers, detecting bus speed dynamically during synchronization fields - a requirement for LIN 2.x compliance.

What debug interface does the MSP430F2132CY use?

The MSP430F2132CY uses the Spy-Bi-Wire (SBW) interface for programming and debugging, accessed via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. This 2-wire interface is fully supported by TI's MSP-FET430UIF debugger and Code Composer Studio, enabling full-speed flash programming, real-time breakpoints, and register inspection without requiring a full 4-pin JTAG header.

How much analog input capability does the MSP430F2132CY provide?

The MSP430F2132CY provides eight analog input channels (A0–A7) for its 10-bit ADC10 module, plus dedicated comparator_A+ inputs (CA0–CA7) that can be used for slope A/D conversion or independent analog monitoring. All analog inputs are multiplexed onto GPIO pins P1.0–P1.7, P2.0–P2.4, P2.6–P2.7, and P3.0–P3.7, with software-selectable reference sources (internal 1.5 V/2.5 V or external).

Is the MSP430F2132CY pin-compatible with other MSP430F21x2 variants?

Yes, the MSP430F2132CY is pin-compatible with all MSP430F21x2 family members in the same 28-pin TSSOP (PW) package, including MSP430F2112IPW and MSP430F2122IPW. Pin functions, electrical characteristics, and peripheral mappings are identical across these variants - enabling hardware reuse and firmware scalability between memory configurations.