Texas Instruments MSP430F5524IYFFT

Overview

MSP430F5524IYFFT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with integrated USB 2.0 PHY, 64KB flash, 4KB+2KB RAM, 47 GPIO pins, and a 12-bit ADC with 12 input channels (10 external, 2 internal). It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and USB-connected data loggers requiring fast wake-up (3.5 µs from LPM3) and RTC-backed timekeeping.

For engineers reviewing the MSP430F5524IYFFT datasheet, MSP430F5524IYFFT pinout, MSP430F5524IYFFT application, or MSP430F5524IYFFT equivalent, key selection criteria include its DSBGA-64 package footprint, USB-capable USCI modules (USCI_Ax for UART/IrDA/SPI, USCI_Bx for I²C/SPI), low-power timer suite (TA0/TA1/TA2/TB0), and ADC12_A with autoscan and internal reference - all critical for compact, energy-constrained embedded USB peripherals.

Technical Context

The MSP430F5524IYFFT implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling 25-MHz system clock operation. Its unified clock system integrates FLL stabilization, dual crystal support (XT1 for 32-kHz RTC, XT2 up to 32 MHz), and low-power internal sources (VLO, REFO).

Power management includes a programmable LDO core regulator, supply voltage supervision (SVS/SVM), brownout reset, and five low-power modes (LPM0–LPM4.5), with standby (LPM3) consuming just 1.9 µA at 3.0 V while retaining full RAM and running RTC with crystal.

Key Specifications

Pinout & Package

Package: DSBGA-64 (6 × 6 array, 0.4-mm pitch, 2.8 mm × 2.8 mm body size per TI SLAS590P Section 11).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5524IYFFT, the MSP430F5528IRGC offers identical functionality in a more manufacturable VQFN package, while the MSP430F5522IRGC provides a cost-optimized path for space-tolerant designs with leaner firmware - both retain full USB, ADC, and RTC capabilities but differ in memory capacity and package thermal/mechanical behavior.

Availability

MSP430F5524IYFFT is available at Aetrix Electronics and suitable for USB-connected sensor nodes, battery-operated data loggers, and portable medical devices requiring stable component supply and long-term lifecycle support.

Supply support for MSP430F5524IYFFT 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 delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency and system integration.

The MSP430F55xx product line targets ultra-low-power mixed-signal applications demanding USB connectivity, precision analog sensing, and extended battery life - designed specifically for portable instrumentation and intelligent edge nodes.

FAQ

What is the maximum operating frequency of the MSP430F5524IYFFT?

The MSP430F5524IYFFT supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization. This frequency is confirmed in the device's functional block diagram and electrical specifications table (Section 8.19, DCO Frequency) of the SLAS590P datasheet. The MSP430F5524IYFFT maintains this speed across its full 1.8 V to 3.6 V supply range and –40°C to 85°C temperature range, enabling deterministic real-time execution in USB and sensor applications.

Does the MSP430F5524IYFFT include a hardware USB PHY?

Yes, the MSP430F5524IYFFT integrates a full-speed USB 2.0 PHY with dedicated 3.3-V and 1.8-V USB power system, USB-PLL, and eight endpoints (four IN, four OUT). This is explicitly documented in the "Features" and "Functional Block Diagram" sections of the SLAS590P datasheet. The MSP430F5524IYFFT requires no external USB transceiver, enabling direct connection of DP/DM lines to a USB connector - a key differentiator from non-USB MSP430 variants.

How many analog input channels does the ADC on the MSP430F5524IYFFT support?

The MSP430F5524IYFFT features the ADC12_A module with 12 total input channels: 10 external analog inputs (A0–A9) and 2 internal sources (temperature sensor and VREF/2). This configuration is specified in Figure 4-2 (functional block diagram) and Section 8.35–8.39 (ADC specifications) of the SLAS590P datasheet. The channel count is lower than the 16-channel version in MSP430F5529, reflecting the MSP430F5524IYFFT's optimized peripheral set for 47-pin devices.

What low-power modes are available on the MSP430F5524IYFFT, and what is the lowest current draw?

The MSP430F5524IYFFT supports five low-power modes (LPM0–LPM4.5). Its lowest active-retention mode is LPM4.5, drawing 0.18 µA at 3.0 V with full RAM retention and supply supervisor enabled - verified in Section 8.5 of SLAS590P. LPM3 (RTC active with 32-kHz crystal) draws 1.9 µA at 3.0 V. All values are typical and measured under specified conditions; actual current depends on enabled peripherals and supply voltage.

Is the MSP430F5524IYFFT pin-compatible with other devices in the MSP430F55xx family?

No, the MSP430F5524IYFFT is not pin-compatible with other MSP430F55xx devices due to its DSBGA-64 package (YFF), which has a unique 6×6 ball layout and 0.4-mm pitch. Devices like MSP430F5528IRGC use VQFN-64 (0.5-mm pitch, 9 mm × 9 mm), while MSP430F5529IPN uses LQFP-80. Pin functions are consistent across the family, but physical mapping and package dimensions differ - requiring separate PCB designs for each package variant.