Texas Instruments MSP430F5310IPT

Overview

MSP430F5310IPT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller in 48-pin LQFP package, featuring 32 KB Flash, 6 KB RAM, dual USCI modules (UART/IrDA/SPI/I²C), 10-bit ADC with 12 channels (10 external + 2 internal), RTC, four 16-bit timers, hardware multiplier, and integrated 3.3-V LDO. It targets battery-powered sensor systems and digital timers requiring sub-2 µA standby current and <5 µs wake-up.

For engineers reviewing the MSP430F5310IPT datasheet, MSP430F5310IPT pinout, MSP430F5310IPT application, or MSP430F5310IPT equivalent, key selection criteria include its 47 I/O count in 48-pin LQFP, dual-USCI flexibility for concurrent serial protocols, RTC alarm capability, and verified 1.9 µA LPM3 current at 3 V - critical for long-life portable instrumentation.

Technical Context

The MSP430F5310IPT implements a 16-bit RISC CPUXV2 core with constant generators and unified clock system (UCS) including FLL, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz). Its power management integrates a programmable LDO, supply voltage supervisor (SVM/SVS), and five low-power modes (LPM0–LPM4.5).

Peripherals are mapped via port mapping controller (P4), enabling dynamic reconfiguration of USCI signals on P4 pins; however, simultaneous use of all USCI functions is constrained by pinmux limitations in the 48-pin PT/RGZ packages per Section 3.1 and Figure 1-2.

Key Specifications

Pinout & Package

Package: 48-pin LQFP (PT), 7 mm × 7 mm body, exposed thermal pad (recommended connection to DVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5309IPT and MSP430F5308IPT, the MSP430F5310IPT provides 32 KB Flash headroom for feature-rich firmware, secure bootloader expansion, or field-upgradable algorithms - making it the optimal choice for next-generation sensor platforms requiring scalability.

Availability

MSP430F5310IPT is available at Aetrix Electronics and suitable for smart sensor nodes, digital thermostats, and hand-held meters requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.

Supply support for MSP430F5310IPT 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 and industrial-grade reliability.

The MSP430F5310IPT belongs to the MSP430F5xx ultra-low-power microcontroller family, engineered specifically for extended-battery-life portable measurement systems requiring precision analog integration, real-time responsiveness, and robust power management.

FAQ

What is the maximum system clock frequency supported by the MSP430F5310IPT?

The MSP430F5310IPT supports up to 25 MHz system clock frequency using the FLL-controlled DCO or external XT2 crystal oscillator (up to 32 MHz). This enables high-speed signal processing while maintaining ultra-low active-mode current of 195 µA/MHz at 8 MHz and 3 V during Flash execution - a key specification validated in SLAS677F Section 5.18.

Does the MSP430F5310IPT support crystal oscillators for both low- and high-frequency operation?

Yes, the MSP430F5310IPT integrates dual crystal oscillator circuits: XT1 supports 32.768-kHz watch crystals for RTC accuracy, and XT2 supports high-frequency crystals up to 32 MHz for system clocking. Both are fully documented in Sections 5.14 and 5.15 of the SLAS677F datasheet, with validated startup times and load capacitance requirements.

How many analog input channels does the ADC10_A module provide on the MSP430F5310IPT in the 48-pin LQFP package?

In the MSP430F5310IPT LQFP-48 package, the ADC10_A module provides 6 external analog input channels (A0–A5) plus 2 internal references (VeREF+ and VeREF−), totaling 8 usable channels. This is confirmed in Table 3-1 and Section 5.34 of SLAS677F, where "6 ext, 2 int" is explicitly listed for 48-pin variants.

Can the MSP430F5310IPT operate from a single 3.3-V supply without external regulators?

Yes, the MSP430F5310IPT integrates a fully regulated 3.3-V LDO power system (LDOO/LDOI rails) that accepts 3.6–1.8 V input and delivers stable core and I/O voltage. Section 1.3 and Figure 1-2 confirm this architecture, and Section 5.41 specifies LDO output regulation accuracy and load transient response under real operating conditions.

Is the MSP430F5310IPT pin-compatible with other members of the MSP430F53xx family in the same LQFP-48 package?

Yes, the MSP430F5310IPT, MSP430F5309IPT, and MSP430F5308IPT share identical 48-pin LQFP (PT) packaging, pinout, and electrical characteristics - enabling direct substitution in existing designs. This is explicitly stated in Figures 1-2 and 4-3 of SLAS677F and confirmed in the Device Comparison table (Section 3.1).