Obsolete — sourcing through independent distribution
This part carries an Obsolete lifecycle status from Texas Instruments, meaning it is no longer manufactured and cannot be ordered through the factory channel. No official replacement part has been designated by TI for the MSP430F5524IZQER.
80-BGA MICROSTAR JUNIOR — footprint and assembly considerations
The 80-VFBGA package (MICROSTAR JUNIOR, 5x5 mm body) with 0.5 mm ball pitch rules out hand-soldering and most rework stations without a BGA reflow profile. The PCB layout needs microvias or at least a four-layer stack-up to route the 47 I/O and USB signals out from under the package.
Peripheral set and USB integration
Beyond USB, the MSP430F5524IZQER includes a 12-channel 12-bit ADC, brown-out detect, POR, DMA, PWM, and a watchdog timer. The 6 KB RAM is modest — budget carefully if the USB buffer and application stack share it.