Texas Instruments MSP430F2350IRHAT

Overview

MSP430F2350IRHAT 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 - deployed in battery-powered sensor nodes and portable instrumentation requiring sub-1µs wake-up and <0.1µA off-mode retention.

For engineers reviewing the MSP430F2350IRHAT datasheet, MSP430F2350IRHAT pinout, MSP430F2350IRHAT application, or MSP430F2350IRHAT equivalent, key selection criteria include its QFN-40 package, calibrated DCO supporting 1–16 MHz operation without external crystal, LIN-capable UART with auto-baud detection, and integrated brownout protection for robust low-voltage operation down to 1.8 V.

Technical Context

The MSP430F2350IRHAT implements a 16-bit CPU with seven addressing modes and 51-instruction set, paired with constant generators for optimized code efficiency. Its clock system integrates a digitally controlled oscillator (DCO) factory-calibrated at 1/8/12/16 MHz, plus support for 32-kHz LF crystal and HF crystal up to 16 MHz.

Peripherals include two independent 16-bit timers with capture/compare/PWM capability, a versatile analog comparator supporting slope A/D conversion, and dual USCI modules: USCI_A0 handles UART, IrDA, and SPI; USCI_B0 supports SPI and I²C. All operate under five software-selectable low-power modes, with LPM4 consuming only 0.1 µA while retaining RAM.

Key Specifications

Pinout & Package

Package: 40-pin QFN (RHA), 6 mm × 6 mm, 0.5 mm pitch, 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 microcontroller applications.

Compared with MSP430F2330IRHAT and MSP430F2370IRHAT, the MSP430F2350IRHAT delivers optimal balance of memory (16KB flash/2KB RAM), ultra-low-power operation, and integrated peripherals - making it the preferred choice for mid-complexity embedded systems where cost, size, and power are tightly constrained.

Availability

MSP430F2350IRHAT is available at Aetrix Electronics and suitable for smart metering, portable medical devices, industrial sensor nodes, and asset tracking applications requiring stable component supply and long-term manufacturability.

Supply support for MSP430F2350IRHAT 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 over 50 years of innovation in low-power design.

The MSP430F2350IRHAT belongs to the MSP430F23x0 ultra-low-power MCU family, engineered for extended battery life in portable measurement, sensing, and instrumentation applications - emphasizing sub-µA sleep currents and fast wake-up responsiveness.

FAQ

What is the maximum operating frequency of the MSP430F2350IRHAT?

The MSP430F2350IRHAT supports up to 16 MHz operation using its factory-calibrated digitally controlled oscillator (DCO). This frequency is achievable without external crystals, though optional 32-kHz LF or up-to-16-MHz HF crystals can be used for higher precision timing. The DCO's ±1% accuracy across voltage and temperature makes MSP430F2350IRHAT suitable for timing-critical yet cost-sensitive applications where crystal omission is advantageous.

Does the MSP430F2350IRHAT support hardware UART with automatic baud rate detection?

Yes, the MSP430F2350IRHAT's USCI_A0 module implements enhanced UART with LIN-compliant auto-baudrate detection. This feature allows MSP430F2350IRHAT to automatically determine incoming bit rate from a break-field preamble, eliminating the need for pre-negotiated baud settings - essential for interoperability in automotive diagnostics and industrial bus networks.

How many I/O pins does the MSP430F2350IRHAT provide, and what are their capabilities?

The MSP430F2350IRHAT provides 32 dedicated I/O pins across four 8-bit ports (P1–P4), all individually configurable for input/output, pullup/pulldown, and edge-selectable interrupts. Ports P1 and P2 support interrupt-on-change for all bits; all pins retain functionality across low-power modes, enabling wake-up from LPM4 via external events - a core capability leveraged in MSP430F2350IRHAT-based sensor wake-on-motion designs.

Can the MSP430F2350IRHAT perform analog-to-digital conversion without an external ADC?

Yes, the MSP430F2350IRHAT integrates Comparator_A+, which supports slope-based analog-to-digital conversion using its internal timer and comparator. By charging a capacitor through a known current and measuring time-to-threshold, MSP430F2350IRHAT achieves effective 10–12-bit resolution for slow-varying signals like battery voltage or thermistor readings - eliminating the need for external ADC components in resource-constrained designs.

What development tools are officially supported for the MSP430F2350IRHAT?

Texas Instruments officially supports the MSP-FET430U23X0 debugger/programmer for the MSP430F2350IRHAT (RHA package), along with the MSP-TS430QFN23X0 target socket board. Software toolchain includes Code Composer Studio (CCS) and naken430usb for open-source debugging. These tools enable full JTAG access, flash programming, real-time variable watch, and low-power mode profiling - all validated specifically for MSP430F2350IRHAT hardware configuration.