Texas Instruments MSP430F2232TDAR

Overview

MSP430F2232TDAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB Flash, 512B RAM, 10-bit ADC with 12-channel analog input, two 16-bit timers (Timer_A and Timer_B), and USCI modules supporting UART, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.

For engineers reviewing the MSP430F2232TDAR datasheet, MSP430F2232TDAR pinout, MSP430F2232TDAR application, or MSP430F2232TDAR equivalent, key selection considerations include its 38-pin TSSOP (DA) package, -40°C to 105°C temperature grade, integrated brownout detector, sub-1 µs wake-up time from standby mode, and absence of operational amplifiers (distinguishing it from the F22x4 series).

Technical Context

The MSP430F2232TDAR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its basic clock system includes DCO with four factory-calibrated frequencies (±1%), internal VLO, and support for external 32-kHz crystal or HF crystal up to 16 MHz.

It integrates USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), a 10-bit ADC10 with internal reference, sample-and-hold, autoscan, and data transfer controller (DTC), plus full JTAG/Spy-Bi-Wire debug interface with on-chip emulation module (EEM) and bootstrap loader (BSL).

Key Specifications

Pinout & Package

Package: 38-pin Thin Shrink Small-Outline Package (TSSOP), suffix "DA", body size 9.7 mm × 4.4 mm, pitch 0.65 mm. RoHS-compliant, lead-free, moisture sensitivity level (MSL) 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2252TDAR and MSP430F2272TDAR, the MSP430F2232TDAR provides optimal balance of code space, RAM, and cost for compact sensor firmware - avoiding over-provisioning while maintaining full peripheral compatibility and pin-to-pin layout reuse.

Availability

MSP430F2232TDAR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial data loggers requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MSP430F2232TDAR 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 with emphasis on energy efficiency and reliability.

The MSP430F2232TDAR belongs to the MSP430F22x2 ultra-low-power microcontroller family, designed specifically for battery-operated measurement and sensing applications where nanowatt-level power management and integrated analog peripherals are essential.

FAQ

What is the maximum operating frequency of the MSP430F2232TDAR?

The MSP430F2232TDAR supports a maximum system clock (MCLK) frequency of 16 MHz using an external HF crystal or resonator. Its internal digitally controlled oscillator (DCO) is factory-calibrated to four frequencies - 1 MHz, 4 MHz, 8 MHz, and 12 MHz - all accurate to ±1% across the full temperature range. This eliminates the need for external timing components in many low-speed applications while retaining flexibility for higher-performance use cases. The MSP430F2232TDAR achieves a 62.5-ns instruction cycle time at 16 MHz.

Does the MSP430F2232TDAR include operational amplifiers?

No, the MSP430F2232TDAR does not include operational amplifiers. Operational amplifiers are exclusive to the MSP430F22x4 series (e.g., MSP430F2234, MSP430F2274). The MSP430F2232TDAR is part of the F22x2 family and shares the same core peripherals - including 10-bit ADC10, two 16-bit timers, USCI_A0/USCI_B0, and Brownout Detector - but omits the two configurable op-amps present in F22x4 variants. This distinction is clearly documented in TI's SLAS504G datasheet feature tables.

What package type and pin count does the MSP430F2232TDAR use?

The MSP430F2232TDAR uses a 38-pin Thin Shrink Small-Outline Package (TSSOP), designated by the "DA" suffix per TI's ordering nomenclature. Its dimensions are 9.7 mm × 4.4 mm with 0.65 mm pitch. This package is RoHS-compliant, lead-free, and rated MSL-3. It is pin-compatible with other MSP430F22x2/F22x4 devices in the DA package, including MSP430F2252TDAR and MSP430F2272TDAR, enabling scalable design reuse.

What debug interface does the MSP430F2232TDAR support?

The MSP430F2232TDAR supports both JTAG and Spy-Bi-Wire (SBW) debug interfaces via dedicated pins RST/NMI/SBWTDIO (Pin 6) and TEST/SBWTCK (Pin 1). The on-chip Embedded Emulation Module (EEM) provides two hardware breakpoints and full flash programming capability. TI recommends the MSP-FET430UIF (USB) or MSP-FET430U38 (DA-package target board) for development. No external programming voltage is required - all operations use the device's DVCC supply.

Is the MSP430F2232TDAR suitable for automotive applications?

Yes, the MSP430F2232TDAR is qualified for extended temperature operation from –40°C to +105°C (indicated by the "T" in the part number), making it suitable for under-hood and cabin automotive applications such as body control modules, tire pressure monitoring systems (TPMS), and HVAC sensor interfaces. It meets AEC-Q100 stress test requirements for Grade 2 temperature range and includes features critical for automotive use - including brownout detection, fail-safe reset circuitry, and robust ESD protection (2 kV HBM).