What the 120 MHz Cortex-M4 buys you in this STM32L4 variant
The STM32L4Q5AGI6P provides 1 MB of Flash and 320 KB of SRAM. The Cortex-M4 floating-point unit handles DSP math without a software library.
Peripheral set and connectivity — what the 140 I/O can connect to
With 140 I/O lines and a 169-UFBGA (7x7 mm) package, this MCU can drive a parallel LCD, an external memory bus via EBI/EMI, and multiple serial buses simultaneously.
Data converters and package — integration details
The device integrates two 12-bit DACs and sixteen 12-bit ADC channels, covering analog front-end needs for current sensing, temperature monitoring, or audio input without an external converter.
Lifecycle and sourcing posture
For volume commitments, the base product number STM32L4Q5 covers multiple density and package variants, so a single qualification covers the family.
