Texas Instruments MSP430F5515IPNR

Overview

MSP430F5515IPNR 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/I²C/SPI), RTC, DMA, and 63 GPIO pins in a 80-pin LQFP package. It operates from 1.8 V to 3.6 V, achieves 290 µA/MHz active current at 8 MHz, and supports wake-up from LPM3 in 3.5 µs - ideal for battery-powered USB-connected sensor nodes and portable data loggers.

For engineers reviewing the MSP430F5515IPNR datasheet, MSP430F5515IPNR pinout, MSP430F5515IPNR application, or MSP430F5515IPNR equivalent, key selection criteria include USB 2.0 PHY integration, 63 I/O count, LQFP-80 package compatibility, ultra-low standby current (1.9 µA in LPM3), and absence of on-chip 12-bit ADC (distinguishing it from F552x variants).

Technical Context

The MSP430F5515IPNR implements a 16-bit RISC CPUXV2 core with constant generators and unified clock system featuring FLL stabilization, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz). Its power management includes a programmable LDO, SVS/SVM, and brownout detection - enabling robust operation across voltage transients in portable systems.

USB functionality is implemented via integrated full-speed PHY, USB-PLL, dual 3.3-V/1.8-V USB power system, and eight endpoints - eliminating external transceivers. Unlike F552x devices, it omits the 12-bit ADC12_A module but retains COMP_B (12-channel comparator) and hardware multiplier (MPY32) for signal conditioning and arithmetic acceleration.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (12 mm × 12 mm), RoHS-compliant, surface-mount. Pinout validated per TI SLAS590P Figure 7-1 (PN package) and Section 7.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5529IPN, the MSP430F5515IPNR trades ADC capability for lower cost and identical USB/RTC/timer functionality - making it optimal for digital-sensor-only designs. Versus STM32F072RBT6, it delivers superior active and standby current efficiency but lacks ARM toolchain alignment and higher clock headroom.

Availability

MSP430F5515IPNR is available at Aetrix Electronics and suitable for USB-connected sensor nodes, portable data loggers, and industrial protocol adapters requiring stable component supply, long-term lifecycle support, and RoHS-compliant LQFP packaging.

Supply support for MSP430F5515IPNR 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 company headquartered in Dallas, Texas, delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.

The MSP430F55xx product line targets ultra-low-power system control and USB-connected applications - designed specifically for extended battery life in portable measurement, sensor fusion, and energy-harvesting systems where µA-level sleep current and integrated USB are critical.

FAQ

Does the MSP430F5515IPNR include an integrated 12-bit analog-to-digital converter (ADC)?

No, the MSP430F5515IPNR does not include the ADC12_A module. This distinguishes it from the MSP430F552x series (e.g., MSP430F5529IPN), which integrates a 12-bit, 200-ksps ADC with autoscan. The MSP430F5515IPNR retains COMP_B for analog threshold detection but requires external ADCs for precision analog acquisition. All documentation confirms ADC12_A is absent in F551x devices.

What is the maximum operating frequency of the MSP430F5515IPNR?

The MSP430F5515IPNR supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization or external XT2 crystal up to 32 MHz. This frequency enables full-speed USB frame handling, real-time sensor processing, and deterministic timer operation - verified in TI SLAS590P Section 8.19 (DCO Frequency) and Section 4 functional block diagram.

Which package type and pin count does the MSP430F5515IPNR use?

The MSP430F5515IPNR uses an 80-pin LQFP package (body size 12 mm × 12 mm), designated by the "PN" suffix in the part number. This matches the pinout shown in Figure 7-1 of the SLAS590P datasheet and is shared with MSP430F5519IPN and MSP430F5517IPN. The device provides 63 general-purpose I/O pins, confirmed in Section 3 Description and Figure 4-3 functional block diagram.

How does the USB functionality of the MSP430F5515IPNR differ from standard USB microcontrollers?

The MSP430F5515IPNR integrates a full-speed USB 2.0 PHY, USB-PLL, dual 3.3-V/1.8-V USB power system, and eight endpoints - eliminating external transceivers and voltage translators. Unlike host-side or hub controllers, it operates exclusively as a USB device. Its USB-LDO and PUR pin simplify compliance with USB specification requirements for pull-up signaling and power domain isolation, as detailed in Sections 4.3 and 8.44–8.46 of SLAS590P.

What low-power modes are supported by the MSP430F5515IPNR, and what are their typical currents?

The MSP430F5515IPNR supports five low-power modes: LPM0–LPM4 and LPM4.5. Key currents include: LPM3 (RTC + crystal active) = 1.9 µA @ 3.0 V; LPM4 (full RAM retention) = 1.1 µA @ 3.0 V; LPM4.5 (shutdown) = 0.18 µA @ 3.0 V. These values are measured with all clocks disabled except required oscillators and are specified in SLAS590P Section 8.5 - enabling multi-year battery life in intermittently active applications.