AU9528-O-GR AU9528-O-GR-48T AU9540 AU9540-A51-GBS-GR AU9540A51-GBS-GR AU9540A51-GCS-GR AU9540B AU9540B52-GBS-GR AU9540B52-GBS-GR SSOP28 AU9540B53-GAF-GR