Texas Instruments MSP430F5522IZQE

Overview

MSP430F5522IZQE from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with integrated USB 2.0 PHY, 32 KB flash, 4 KB + 2 KB RAM, 12-bit ADC (12-channel), four 16-bit timers, two USCI modules (UART/IrDA/SPI/I²C), and 47 GPIO pins in a 80-ball MicroStar Junior™ BGA package. It targets battery-powered sensor nodes and USB-connected data loggers requiring sub-2 µA standby current and fast 3.5 µs wake-up.

For engineers reviewing the MSP430F5522IZQE datasheet, MSP430F5522IZQE pinout, MSP430F5522IZQE application, or MSP430F5522IZQE equivalent, key selection criteria include its 47-I/O BGA footprint, USB-capable peripheral set, LPM3 current of 1.9 µA at 2.2 V, RTC support with crystal, and compatibility with TI's MSP430Ware™ and LaunchPad™ ecosystem.

Technical Context

The MSP430F5522IZQE implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling 3.5 µs wake-up from LPM3. Its unified clock system integrates FLL stabilization, VLO and REFO internal sources, XT1 (32 kHz crystal), and XT2 (up to 32 MHz crystal).

Power management includes a programmable LDO core regulator, supply voltage supervisor (SVS), brownout reset, and four low-power modes (LPM0–LPM4.5). The USB subsystem features integrated PHY, 3.3-V/1.8-V power system, USB-PLL, and eight endpoints-fully compliant with USB 2.0 full-speed operation.

Key Specifications

Pinout & Package

MicroStar Junior™ BGA (80-ball, 5 mm × 5 mm, 0.5 mm pitch) with I/O ball mapping defined per TI SLAS590P Figure 7-7 (ZQE package). Pin functions follow standard MSP430F552x port mapping with P1–P6 and PJ banks.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5528IZQE and MSP430F5524IZQE, the MSP430F5522IZQE provides the minimal memory configuration within the ZQE-packaged F552x family while retaining full USB, ADC, timer, and low-power feature parity - making it optimal for cost-sensitive, memory-efficient USB peripheral designs.

Availability

MSP430F5522IZQE is available at Aetrix Electronics and suitable for USB-connected sensor systems, battery-powered data loggers, and industrial field interfaces requiring stable component supply and long-term lifecycle support.

Supply support for MSP430F5522IZQE 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer applications.

The MSP430F5522IZQE belongs to the MSP430F55xx ultra-low-power MCU family, designed specifically for energy-constrained applications requiring integrated USB connectivity, precision analog sensing, and robust real-time control.

FAQ

What is the maximum system clock frequency supported by the MSP430F5522IZQE?

The MSP430F5522IZQE supports up to 25 MHz system clock frequency using the integrated FLL with XT2 crystal or external source. This is confirmed in the "Description" section of SLAS590P, where the architecture is stated as "16-bit RISC architecture, extended memory, up to 25-MHz system clock." The device achieves this via DCO modulation and FLL loop stabilization - no external PLL chip is required. MSP430F5522IZQE maintains full peripheral functionality including USB and ADC at this rate.

Does the MSP430F5522IZQE include an internal reference voltage for the ADC?

Yes, the MSP430F5522IZQE includes an internal reference voltage (REFO) selectable as ADC12 reference source. Per SLAS590P Section 8.38, the internal reference provides 1.5 V ±3% and 2.0 V ±3% options with typical linearity of ±0.5 LSB. This eliminates need for external voltage references in cost-sensitive designs. MSP430F5522IZQE also supports external VREF+ and AVCC as reference inputs.

Is the MSP430F5522IZQE pin-compatible with other ZQE-package MSP430F552x devices?

Yes, the MSP430F5522IZQE is pin-compatible with MSP430F5524IZQE, MSP430F5526IZQE, and MSP430F5528IZQE in the same MicroStar Junior™ BGA package. All share identical 80-ball layout, I/O function mapping, and power/ground ball positions per TI's ZQE package documentation. This allows direct substitution in existing layouts when memory requirements change.

What USB speed and compliance level does the MSP430F5522IZQE support?

The MSP430F5522IZQE supports full-speed USB 2.0 (12 Mbps) with integrated PHY, meeting USB-IF compliance requirements for device enumeration and data transfer. Its USB subsystem includes integrated 3.3-V/1.8-V regulators, USB-PLL, and endpoint buffers - no external components required for basic CDC or HID class operation. MSP430F5522IZQE passes electrical testing per USB 2.0 specification as verified in TI's USB certification reports.

How many general-purpose I/O pins does the MSP430F5522IZQE provide?

The MSP430F5522IZQE provides 47 general-purpose I/O pins, as explicitly stated in the "Description" section: "The MSP430F5528, MSP430F5526, MSP430F5524, and MSP430F5522 microcontrollers [...] have 47 I/O pins." These are distributed across Ports P1–P6 and PJ, with full interrupt, Schmitt-trigger, and configurable drive strength support - matching the functional block diagram in Figure 4-2.