Texas Instruments MSP430F5515IPN

Overview

MSP430F5515IPN from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with integrated USB 2.0 PHY, four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), RTC, DMA, and 63 GPIO pins in an 80-pin LQFP package. It operates from 1.8 V to 3.6 V and achieves 290 µA/MHz active current at 8 MHz with flash execution.

For engineers reviewing the MSP430F5515IPN datasheet, MSP430F5515IPN pinout, MSP430F5515IPN application, or MSP430F5515IPN equivalent, this device is selected for battery-powered USB-connected sensor nodes, portable data loggers, and real-time control systems requiring fast wake-up (3.5 µs), full RAM retention in LPM3/LPM4, and on-chip USB power management (3.3-V/1.8-V LDOs).

Technical Context

The MSP430F5515IPN implements a 16-bit RISC CPUXV2 core with constant generators and unified clock system featuring FLL stabilization, VLO, REFO, XT1 (32-kHz crystal), and XT2 (up to 32-MHz crystal). Its power architecture includes a programmable LDO, supply voltage supervisor (SVS), brownout reset (BOR), and five low-power modes (LPM0–LPM4.5).

Peripherals are mapped via port mapping control (P4) and supported by three-channel DMA. USB functionality uses integrated PHY, PLL, and dedicated 3.3-V/1.8-V power rails - no external transceiver or regulator required. Unlike MSP430F552x variants, MSP430F5515IPN omits the 12-bit ADC but retains COMP_B (12-channel comparator) and hardware multiplier (MPY32).

Key Specifications

Pinout & Package

LQFP-80 package (12 mm × 12 mm, 0.5-mm pitch), RoHS-compliant, with thermal pad exposed on underside for enhanced heat dissipation in compact PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5529IPN, MSP430F5515IPN trades ADC capability for cost and die size reduction while retaining full USB, timer, and low-power performance. Against MSP430F5519IPN, it shares identical architecture and pinout - differing only in production lot calibration metadata.

Availability

MSP430F5515IPN is available at Aetrix Electronics and suitable for USB-connected sensor nodes, portable data loggers, and low-power HID controllers requiring stable component supply across multi-year production cycles.

Supply support for MSP430F5515IPN 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 microcontroller innovation.

The MSP430F55xx family targets ultra-low-power USB-enabled applications - designed specifically for battery-operated measurement, sensing, and human-interface devices where energy efficiency and integration are critical.

FAQ

What is the maximum operating frequency of the MSP430F5515IPN?

The MSP430F5515IPN supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization or external high-frequency crystal (XT2) up to 32 MHz. This frequency drives the CPU, peripherals, and USB timing subsystem - enabling real-time processing while maintaining sub-µA standby current.

Does the MSP430F5515IPN include an analog-to-digital converter (ADC)?

No, the MSP430F5515IPN does not include an ADC. Unlike the MSP430F552x series, the MSP430F551x family (including MSP430F5515IPN) omits the 12-bit ADC12_A module. It retains the 12-channel Comparator_B (COMP_B) for threshold detection and window comparisons, but analog signal digitization requires external ADC or use of alternative family members like MSP430F5529IPN.

What USB speed and device class support does the MSP430F5515IPN provide?

The MSP430F5515IPN supports full-speed USB 2.0 (12 Mbps) with integrated PHY, USB-PLL, and endpoint controller. It implements standard USB device classes including CDC (virtual COM port), HID (keyboard/mouse), and MSC (mass storage) via firmware - no external USB controller is needed. The eight endpoints (4 IN/4 OUT) allow composite device configurations.

What is the pin-compatible alternative to the MSP430F5515IPN in the same LQFP-80 package?

The MSP430F5519IPN is pin-compatible with the MSP430F5515IPN - sharing identical LQFP-80 footprint, peripheral register map, memory layout, and electrical specifications. Differences are limited to factory-programmed TLV calibration data and minor process revisions; no PCB or firmware changes are required for substitution.

How does the MSP430F5515IPN manage power for USB operation without external regulators?

The MSP430F5515IPN integrates two dedicated LDOs: a 3.3-V USB-LDO for DP/DM signaling and a 1.8-V USB-LDO for the USB-PLL and PHY logic. These are powered directly from DVCC (1.8–3.6 V) and require no external components - simplifying design and reducing board area while meeting USB electrical compliance requirements.