Texas Instruments MSP430F2232TDA

Overview

MSP430F2232TDA from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 8KB + 256B flash memory, 512B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, two 16-bit timers (Timer_A and Timer_B), and a Universal Serial Communication Interface supporting UART/LIN, IrDA, SPI, and I²C - deployed in sensor signal acquisition and battery-powered measurement systems.

For engineers reviewing the MSP430F2232TDA datasheet, MSP430F2232TDA pinout, MSP430F2232TDA application, or MSP430F2232TDA equivalent, key selection criteria include its 1.8–3.6 V supply range, sub-1 µs wake-up from standby mode, integrated brownout detector, Spy-Bi-Wire debug interface, and TSSOP-38 package compatibility with industrial temperature operation (–40°C to +105°C).

Technical Context

The MSP430F2232TDA implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its basic clock system integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (±1%), plus support for 32-kHz crystal, HF crystal up to 16 MHz, resonator, or external digital clock source.

It features dual low-power operating architectures: Timer_A with three capture/compare registers and Timer_B with three capture/compare registers and shadow registers; USCI_A0 supports enhanced UART with auto-baudrate detection (LIN), IrDA encoding/decoding, and synchronous SPI; USCI_B0 supports SPI and I²C. The device lacks operational amplifiers - distinguishing it from the MSP430F22x4 family members.

Key Specifications

Pinout & Package

Package: 38-pin Thin Shrink Small-Outline Package (TSSOP), JEDEC MO-153, body size 9.7 × 4.4 mm, 0.65 mm pitch. Pin 1 marked by beveled corner; thermal pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2252TDA and MSP430F2272TDA, the MSP430F2232TDA provides optimal cost/performance balance for fixed-function sensor nodes where 8KB flash suffices - avoiding over-provisioned memory and associated higher unit cost without sacrificing ultra-low-power operation or peripheral capability.

Availability

MSP430F2232TDA is available at Aetrix Electronics and suitable for industrial temperature monitoring, battery-powered sensor networks, and portable diagnostic equipment requiring stable component supply across extended product lifecycles.

Supply support for MSP430F2232TDA 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets since 1930.

The MSP430™ family was designed specifically for ultra-low-power sensing and measurement applications - emphasizing sub-µA standby current, fast wake-up, integrated analog peripherals, and robust operation across extended temperature ranges.

FAQ

What is the maximum operating frequency of the MSP430F2232TDA?

The MSP430F2232TDA supports a maximum system clock (MCLK) frequency of 16 MHz when using an external HF crystal or resonator. Its internal DCO is factory-calibrated at four frequencies (1/2/4/8 MHz) with ±1% accuracy - sufficient for most timing-critical sensor applications without external clock components. The CPU executes instructions at 62.5-ns cycle time at 16 MHz, and the MSP430F2232TDA maintains full functionality across its entire –40°C to +105°C operating range at this speed.

Does the MSP430F2232TDA include operational amplifiers?

No, the MSP430F2232TDA does not include operational amplifiers. Operational amplifiers are exclusive to the MSP430F22x4 series (e.g., MSP430F2234TDA), which integrates two configurable op-amps. The MSP430F2232TDA belongs to the MSP430F22x2 family and omits OA0 and OA1 circuitry - confirmed by functional block diagrams, pin function tables, and feature lists in the SLAS504G datasheet. Designers requiring on-chip amplification must select an F22x4 variant or add external op-amps.

What debug interface does the MSP430F2232TDA support?

The MSP430F2232TDA supports Spy-Bi-Wire (SBW), a 2-wire variant of JTAG, using dedicated pins TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6). This interface enables full-speed in-system programming, real-time debugging, and flash memory protection via security fuse - all with minimal PCB routing. It is compatible with TI's MSP-FET430UIF and MSP-FET430U38 development tools, and does not require a 4-wire JTAG header.

Is the MSP430F2232TDA pin-compatible with other MSP430F22x2 devices in TSSOP-38?

Yes, the MSP430F2232TDA is fully pin-compatible with all other MSP430F22x2 family members offered in the DA (TSSOP-38) package, including MSP430F2252TDA and MSP430F2272TDA. They share identical pin functions, electrical characteristics, and package dimensions - allowing drop-in replacement solely by reprogramming flash memory. This enables scalable design reuse across performance tiers without PCB redesign.

What ADC resolution and sampling rate does the MSP430F2232TDA provide?

The MSP430F2232TDA integrates a 10-bit successive-approximation ADC (ADC10) capable of 200 ksamples per second (ksps) maximum throughput. It supports 12 analog input channels (A0–A7, A12–A15), internal reference (1.5 V or 2.5 V), sample-and-hold, autoscan mode, and Data Transfer Controller (DTC) for automatic memory writes - enabling continuous multi-channel acquisition without CPU intervention. The ADC10 is explicitly specified for the MSP430F2232TDA in Table 1 and functional descriptions of the SLAS504G datasheet.