MSP430F5631IZQWR

Microcontrollers Overview

The MSP430F5631IZQWR is a 16-bit RISC microcontroller from the Texas Instruments MSP430F563x family, housed in a 113-pin MicroStar Junior BGA package. It features 192KB of Flash memory and 18KB of RAM (16KB general-purpose plus 2KB USB buffer). The device operates on a supply voltage range of 1.8V to 3.6V with a maximum system clock frequency of 20MHz. Key peripherals include two Universal Serial Communication Interfaces (USCIs) supporting UART, SPI, I2C, and full-speed USB 2.0, a 12-bit ADC with 16 channels, four 16-bit timers, and up to 74 I/O pins.

Microcontrollers Feature Summary

• Ultra-low power architecture with five low-power modes optimized for extended battery life in portable applications.
• Integrated full-speed USB 2.0 interface with integrated PHY, PLL, and power system.
• High-performance 12-bit analog-to-digital converter with internal shared reference and autoscan feature.
• Flexible power management system with fully integrated LDO and supply voltage supervision.

Microcontrollers Applications

• Analog and digital sensor systems
• Digital motor control
• Remote controls
• Thermostats
• Hand-held meters

Microcontrollers Procurement Notes

Verify the specific ordering suffix 'ZQWR' against the latest Package Option Addendum to confirm the MicroStar Junior BGA package and tape-and-reel status. Confirm current production status as ZQW packages may have transitioned to Last Time Buy status. Ensure compatibility with existing PCB footprints and reflow profiles for the 113-pin BGA configuration.

Microcontrollers Selection Notes

Select this component when a balance of moderate Flash capacity (192KB) and comprehensive connectivity (USB, I2C, SPI) is required within a compact BGA footprint. It is suitable for designs needing 12-bit precision analog conversion and multiple timer resources without the higher cost or complexity of larger memory variants in the F563x series.

Microcontrollers Part Context

This part belongs to the MSP430F563x mixed-signal microcontroller family, which shares a common CPUXV2 core and peripheral set. Variants differ primarily in Flash size (128KB to 256KB) and the presence of DACs. The F5631 specifically offers 192KB Flash and lacks the dual DACs found in higher-end models like the F5638, while retaining the full USB and ADC capabilities.

Microcontrollers Replacement Considerations

Direct pin-compatible replacements within the same package include other MSP430F563x devices such as the MSP430F5630 or MSP430F5632, provided memory requirements are met. Verify that the substitute part number supports the MicroStar Junior BGA package and check for any changes in peripheral availability, such as the presence or absence of DACs.