Texas Instruments MSP430F2252TRHAR

Overview

MSP430F2252TRHAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16KB+256B flash memory, 512B RAM, a 10-bit 200-ksps ADC with internal reference and data transfer controller, two 16-bit timers (Timer_A and Timer_B), and a universal serial communication interface supporting UART/LIN, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems requiring sub-µA standby current.

For engineers reviewing the MSP430F2252TRHAR datasheet, MSP430F2252TRHAR pinout, MSP430F2252TRHAR application, or MSP430F2252TRHAR equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for embedded sensing and low-power control designs.

Technical Context

The MSP430F2252TRHAR implements a 16-bit RISC CPU with 62.5-ns instruction cycle time and five software-selectable low-power modes - including LPM4 with 0.1 µA off-mode current and wake-up in under 1 µs via its digitally controlled oscillator (DCO). Its clock system supports internal DCO (calibrated to ±1% at 1–16 MHz), 32-kHz crystal, HF crystal up to 16 MHz, and external digital/resistor sources.

It integrates USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), a 10-bit ADC10 with 12 analog input channels (A0–A7, A12–A15), autoscan, and integrated DTC, plus two independent 16-bit timers with capture/compare registers and PWM capability. Unlike the F22x4 series, it does not include operational amplifiers.

Key Specifications

Pinout & Package

Package: 40-pin QFN (RHA), 6 mm × 6 mm, 0.5 mm pitch, exposed thermal pad connected to DVSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2252TRHAR, the MSP430F2272TRHAR offers scalable memory while maintaining identical low-power behavior and peripheral set, whereas the MSP430G2553IRHB trades some analog/timing resources for reduced size and price - making each suitable for distinct design constraints.

Availability

MSP430F2252TRHAR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial data loggers, and smart meter interface modules requiring stable component supply and long-term manufacturability.

Supply support for MSP430F2252TRHAR 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 expertise in ultra-low-power design.

The MSP430F2252TRHAR belongs to the MSP430F2xx ultra-low-power microcontroller family, engineered specifically for battery-operated measurement and sensing applications where energy efficiency, integration, and reliability are critical.

FAQ

What is the maximum operating frequency of the MSP430F2252TRHAR?

The MSP430F2252TRHAR supports a maximum system clock (MCLK) frequency of 16 MHz, achievable using the internal digitally controlled oscillator (DCO) calibrated to ±1% or an external HF crystal. This allows execution of 16 million instructions per second with 62.5-ns instruction cycle time, sufficient for real-time sensor fusion and protocol handling without external clock sources.

Does the MSP430F2252TRHAR include operational amplifiers?

No, the MSP430F2252TRHAR does not include operational amplifiers. Operational amplifiers are exclusive to the MSP430F22x4 series (e.g., MSP430F2254TRHAR). The MSP430F2252TRHAR is part of the F22x2 series, which omits OA0 and OA1 blocks but retains all other peripherals including ADC10, USCI modules, and dual 16-bit timers.

What package type and pin count does the MSP430F2252TRHAR use?

The MSP430F2252TRHAR uses a 40-pin QFN package (RHA), measuring 6 mm × 6 mm with 0.5 mm pitch and an exposed thermal pad. This package is pin-compatible with other MSP430F22x2/F22x4 devices in the RHA variant, enabling design reuse across memory and feature variants within the same footprint.

Can the MSP430F2252TRHAR operate from a single 3.3-V supply?

Yes, the MSP430F2252TRHAR operates across a supply range of 1.8 V to 3.6 V, making it fully compatible with standard 3.3-V systems. At 3.3 V, it delivers optimal ADC performance (full 10-bit linearity) and supports maximum 16-MHz DCO operation while maintaining ultra-low-power modes - ideal for industrial and medical applications using regulated 3.3-V rails.

How is programming and debugging performed on the MSP430F2252TRHAR?

Programming and debugging of the MSP430F2252TRHAR is performed via the 2-wire Spy-Bi-Wire interface using pins TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6). This eliminates the need for a 4-wire JTAG header, reducing PCB space and cost. Tools like the MSP-FET430UIF support full-speed debugging, flash programming, and BSL-based firmware updates over UART.