MSP430F5328IZQE — 25 MHz 16-bit MCU in 80-BGA
The Texas Instruments MSP430F5328IZQE is a 16-bit microcontroller from the MSP430F5xx series, built around the MSP430 CPUXV2 core running at 25 MHz. Housed in an 80-VFBGA package (5x5 mm BGA Microstar Junior), this part targets space-constrained designs where a small footprint matters more than hand-solderability — the 0.5 mm pitch BGA demands a controlled reflow profile and X-ray inspection for joint verification.
Memory, peripherals and connectivity
The 128 KB Flash and 10 KB SRAM suit moderate-complexity firmware — enough for a sensor fusion algorithm or a communication protocol stack without external memory. Program memory is Flash, so field updates are feasible within the 100k-cycle endurance typical of this process node. On-chip peripherals include a brown-out detect, POR, DMA controller, PWM timer, and watchdog timer. Connectivity covers I²C, IrDA, LINbus, SCI, SPI, and UART/USART — enough serial interfaces to talk to a sensor array, a display, and a host controller simultaneously. The 12-bit ADC with 12 multiplexed channels resolves 4096 levels across the analog input range — adequate for battery monitoring, temperature sensing, or current measurement in a control loop.
Texas Instruments has marked the MSP430F5328IZQE as obsolete. Without an official cross-reference, a board spin is the only guaranteed path to a different package option.