Texas Instruments MSP430F2254TDA

Overview

MSP430F2254TDA from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16 KB + 256 B flash memory, 512 B RAM, two integrated operational amplifiers, a 10-bit 200-ksps ADC with internal reference and data transfer controller, dual 16-bit timers (Timer_A and Timer_B), and USCI modules supporting UART/LIN, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor acquisition systems.

For engineers reviewing the MSP430F2254TDA datasheet, MSP430F2254TDA pinout, MSP430F2254TDA application, or MSP430F2254TDA equivalent, key selection considerations include its 38-pin TSSOP (DA) package, -40°C to 105°C temperature grade, dual op-amp support, 32 I/O pins with analog capability across 16 channels, and Spy-Bi-Wire debug interface compatibility.

Technical Context

The MSP430F2254TDA implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, constant generators for code efficiency, and five software-selectable low-power modes-including LPM4 with 0.1 µA off-mode current. Its clock system integrates a digitally controlled oscillator (DCO), calibrated internal frequencies up to 16 MHz, and support for external crystals (32 kHz LF and up to 16 MHz HF).

Peripherals include Timer_A with three capture/compare registers, Timer_B with three capture/compare registers and shadow registers, USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and a 10-bit ADC10 with autoscan, sample-and-hold, and DTC-enabling autonomous analog data acquisition without CPU intervention.

Key Specifications

Pinout & Package

Package: 38-pin TSSOP (DA), 0.65 mm pitch, body size 9.7 × 4.4 mm. Pinout validated per TI SLAS504G Rev. G (August 2012), Table 4 (MSP430F22x4 DA package mapping).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2274TDA and MSP430F2252TDA, the MSP430F2254TDA uniquely balances on-chip analog integration (dual op amps), medium memory capacity (16 KB flash), and industrial temperature range-making it optimal for compact, self-contained sensor front-ends where BOM reduction and thermal robustness are prioritized.

Availability

MSP430F2254TDA is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart utility meter interfaces, and low-power PLC I/O modules requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for MSP430F2254TDA 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 system-level innovation.

The MSP430F2254TDA belongs to the MSP430F22x4 family-designed specifically for ultra-low-power mixed-signal applications where extended battery life, integrated analog peripherals, and reliable operation across harsh industrial temperatures are essential.

FAQ

What is the maximum operating frequency of the MSP430F2254TDA?

The MSP430F2254TDA supports an internal digitally controlled oscillator (DCO) calibrated to 16 MHz, enabling CPU execution at up to 16 MHz. External crystal sources up to 16 MHz are also supported via the HF crystal oscillator module. This frequency capability allows real-time processing of high-speed analog inputs and communication protocols while maintaining ultra-low power consumption in active mode.

Does the MSP430F2254TDA include hardware debug support?

Yes, the MSP430F2254TDA includes an Embedded Emulation Module (EEM) and supports Spy-Bi-Wire (SBW) interface via pins TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6). This enables full in-system programming and debugging using tools like the MSP-FET430UIF, eliminating the need for dedicated JTAG headers and reducing PCB footprint.

How many analog input channels does the MSP430F2254TDA ADC support?

The MSP430F2254TDA features a 10-bit ADC10 with 16 selectable analog input channels (A0–A15), including dedicated pins and multiplexed functions on Port 2, Port 3, and Port 4. Channel selection is fully software-configurable, and the integrated Data Transfer Controller (DTC) enables automatic result storage without CPU intervention-critical for low-power continuous acquisition.

Is the MSP430F2254TDA pin-compatible with other devices in the MSP430F22x4 family?

Yes, the MSP430F2254TDA shares identical pinout and package (38-pin TSSOP, DA) with all MSP430F22x4 variants-including MSP430F2234TDA and MSP430F2274TDA. This allows direct substitution within the same footprint, provided firmware and peripheral configuration align with the specific memory and feature set of each variant.

What is the purpose of the two operational amplifiers in the MSP430F2254TDA?

The two rail-to-rail operational amplifiers (OA0 and OA1) in the MSP430F2254TDA provide configurable gain, filtering, and signal conditioning directly on-chip-eliminating the need for external op-amp ICs. They interface with ADC inputs (e.g., OA0O → P4.3/A12), accept external sensor signals (e.g., OA1I0 → P2.4), and support multiple topologies including non-inverting, inverting, and differential configurations-reducing BOM cost and board space.