Texas Instruments MSP430F2350TRHAR

Overview

MSP430F2350TRHAR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 16KB+256B flash, 2KB RAM, dual 16-bit timers (Timer_A3 and Timer_B3), USCI_A0/USCI_B0 serial interfaces (UART/IrDA/SPI/I²C), and an on-chip analog comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable instrumentation requiring sub-1µs wake-up and <0.1 µA off-mode retention.

For engineers reviewing the MSP430F2350TRHAR datasheet, MSP430F2350TRHAR pinout, MSP430F2350TRHAR application, or MSP430F2350TRHAR equivalent, key selection criteria include its 40-pin QFN (RHA) package, -40°C to 105°C industrial temperature grade, calibrated DCO up to 16 MHz, and integrated brownout detection with programmable code protection.

Technical Context

The MSP430F2350TRHAR implements a 16-bit CPU with seven addressing modes and 16 general-purpose registers, enabling single-cycle register operations. Its basic clock module integrates a digitally controlled oscillator (DCO), LF/ HF crystal support, and three system clocks (ACLK, MCLK, SMCLK), all configurable via BCSCTL registers.

Peripherals are memory-mapped and accessible via standard instructions: Timer_A3 and Timer_B3 each provide three capture/compare registers with interrupt capability; USCI_A0 supports UART with auto-baudrate (LIN), IrDA, and SPI; USCI_B0 supports SPI and I²C; Comparator_A+ enables slope A/D conversion and voltage monitoring.

Key Specifications

Pinout & Package

Package: 40-pin QFN (RHA), 6 mm × 6 mm, exposed thermal pad connected to D/AVSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2350TRHAR, the F2330 offers reduced memory for cost-constrained designs, while the F2370 provides headroom for complex firmware growth - all share identical pinout, peripherals, and power profile in the RHA package.

Availability

MSP430F2350TRHAR is available at Aetrix Electronics and suitable for industrial data loggers, portable medical monitors, smart sensor nodes, and energy metering subsystems requiring stable component supply across extended product lifecycles.

Supply support for MSP430F2350TRHAR 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 microcontroller innovation.

The MSP430F23x0 series was designed specifically for ultra-low-power portable measurement applications, emphasizing rapid wake-up, intelligent peripheral autonomy, and robust operation across industrial temperature ranges.

FAQ

What is the maximum operating frequency of the MSP430F2350TRHAR?

The MSP430F2350TRHAR supports an internal digitally controlled oscillator (DCO) calibrated to four frequencies: 1 MHz, 8 MHz, 12 MHz, and 16 MHz - with ±1% factory accuracy. External crystal sources up to 16 MHz are also supported via the HF crystal oscillator input pins XIN/XOUT. The CPU executes instructions at the MCLK rate, enabling full 16-MHz operation without external clock components.

Does the MSP430F2350TRHAR support in-system programming without JTAG?

Yes, the MSP430F2350TRHAR includes a factory-programmed bootstrap loader (BSL) accessible via UART using pins P1.1 (RX) and P2.2 (TX). This allows full flash memory programming, erasure, and verification using only a UART interface and user-defined password protection - eliminating the need for JTAG hardware during production or field updates.

How many I/O pins does the MSP430F2350TRHAR provide, and what are their capabilities?

The MSP430F2350TRHAR provides 32 individually configurable I/O pins across Ports P1–P4 (8 pins each). Each pin supports programmable pullup/pulldown resistors, edge-selectable interrupts (P1/P2 only), and multiple peripheral functions including timer capture/compare, USCI signals, comparator inputs, and clock outputs - all accessible without external glue logic.

What low-power modes are available on the MSP430F2350TRHAR, and how do they differ?

The MSP430F2350TRHAR offers six operating modes: Active Mode (full performance), LPM0–LPM3 (progressively deeper sleep with varying clocks enabled), and LPM4 (deepest sleep: all clocks off, 0.1 µA current, RAM retained). Wake-up from LPM4 to Active Mode occurs in under 1 µs via any interrupt source - critical for event-driven sensor applications.

Is the MSP430F2350TRHAR pin-compatible with other devices in the MSP430F23x0 family?

Yes, the MSP430F2350TRHAR in the 40-pin QFN (RHA) package shares identical pinout, electrical characteristics, and peripheral mapping with MSP430F2330TRHAR and MSP430F2370TRHAR. This enables direct hardware compatibility across the family - firmware and PCB design can be reused when scaling flash/RAM requirements without layout changes.