Texas Instruments MSP430F5310IPTR

Overview

MSP430F5310IPTR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 32 KB Flash, 6 KB RAM, four 16-bit timers (TA0/TA1/TA2/TB0), dual USCI modules (UART/IrDA/SPI/I²C), 10-bit ADC with 12 channels (10 external + 2 internal), RTC, hardware multiplier, and 3-channel DMA. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems requiring sub-2 µA LPM3 current and <5 µs wake-up.

For engineers reviewing the MSP430F5310IPTR datasheet, MSP430F5310IPTR pinout, MSP430F5310IPTR application, or MSP430F5310IPTR equivalent, key selection criteria include its 48-pin LQFP package, integrated 3.3-V LDO, dual-USCI flexibility for concurrent serial protocols, and verified 195 µA/MHz active-mode efficiency at 8 MHz - critical for portable metering and timer applications.

Technical Context

The MSP430F5310IPTR implements a unified clock system (UCS) with FLL-based frequency stabilization, programmable LDO core regulation, and five low-power modes (LPM0–LPM4.5). Its CPUXV2 core executes instructions in single-cycle mode with constant generators for optimized code density.

Peripherals are mapped via port mapping controller (P4), enabling dynamic reconfiguration of USCI signals on shared pins. The device supports crystal oscillators up to 32 MHz (XT2) and 32 kHz (XT1), plus internal VLO and REFO sources - all directly controllable through UCS registers without external components.

Key Specifications

Pinout & Package

The MSP430F5310IPTR is housed in a 48-pin LQFP (PT) package measuring 7 mm × 7 mm with exposed thermal pad recommended for connection to VSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MSP430F5310IPTR, the MSP430F5309IPTR and MSP430F5308IPTR offer identical low-power performance, peripheral integration, and package compatibility - differing only in Flash capacity (32 KB → 24 KB → 16 KB) - making them ideal for tiered product families sharing common hardware design and firmware architecture.

Availability

MSP430F5310IPTR is available at Aetrix Electronics and suitable for smart thermostat control, hand-held digital multimeters, industrial remote sensor nodes, and digital kitchen timers requiring stable component supply and long-term manufacturability.

Supply support for MSP430F5310IPTR 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 low-power MCU innovation.

The MSP430F5310IPTR belongs to TI's MSP430F5xx ultra-low-power microcontroller family, designed specifically for energy-constrained applications demanding extended battery life, robust analog integration, and deterministic real-time responsiveness in portable measurement systems.

FAQ

What is the maximum operating frequency of the MSP430F5310IPTR?

The MSP430F5310IPTR supports a system clock up to 25 MHz, enabled by its integrated FLL-controlled DCO and optional high-frequency crystal oscillator (XT2) supporting crystals up to 32 MHz. At 8 MHz, it achieves 195 µA/MHz active-mode current, balancing performance and power efficiency for sensor-edge applications. The MSP430F5310IPTR's UCS allows dynamic clock scaling to match computational load.

Does the MSP430F5310IPTR support crystal oscillators for real-time clock functionality?

Yes, the MSP430F5310IPTR integrates dedicated XT1 circuitry supporting 32.768-kHz watch crystals for accurate RTC operation in LPM3 mode. The crystal connects to P5.4/XIN and P5.5/XOUT pins. This configuration delivers typical RTC accuracy of ±20 ppm over –40°C to 85°C, and the MSP430F5310IPTR retains full RAM and RTC state during standby with only 1.9 µA consumption at 2.2 V.

How many I/O pins does the MSP430F5310IPTR provide in its 48-pin LQFP package?

The MSP430F5310IPTR provides 47 general-purpose I/O pins in the 48-pin LQFP (PT) package - one pin (RST/NMI/SBWTDIO) serves dual reset/debug functions but remains configurable as GPIO after initialization. All I/Os support Schmitt-trigger inputs, programmable drive strength, and interrupt capability on P1–P2 ports, enabling flexible interface design for sensors, displays, and actuators.

Can the MSP430F5310IPTR operate from a single 3.0-V supply without external regulators?

Yes, the MSP430F5310IPTR includes an integrated 3.3-V LDO that accepts input voltages from 1.8 V to 3.6 V and regulates internally to 3.3 V for analog peripherals and 1.8 V for the VCORE domain. When powered from a nominal 3.0-V source, the MSP430F5310IPTR delivers stable AVCC/DVCC rails without external regulation - simplifying power design and reducing BOM count in space-constrained applications.

What serial communication interfaces are available on the MSP430F5310IPTR?

The MSP430F5310IPTR features two Universal Serial Communication Interfaces (USCI_A0/A1 and USCI_B0/B1), supporting UART (with automatic baud-rate detection and IrDA), SPI (master/slave), and I²C (master/slave) simultaneously. In the 48-pin LQFP package, USCI signals are routed via port mapping controller on P4, allowing flexible pin assignment - a key capability confirmed in the MSP430F5310IPTR datasheet Section 4.2.