Found 6 alternatives for ADSP-BF531SBST400 by Rochester Electronics, LLC. Embedded Dsp Digital Signal Processors — 176-LQFP.
IC FIXED POINT DSP 176-LQFP
IC DSP CONTROLLER 16BIT 176LQFP
BLACKFIN 400MHZ PROCESSOR
IC DSP CONTROLLER 16BIT 176-LQFP
IC DSP CTLR 16BIT 400MHZ 176LQFP
IC DSP FIXED-POINT 176LQFP