STC89C52RC-40I-LQFP44^ STC89C52RC-40I-LQFP44` STC89C52RC-40I-LQFP44= STC89C52RC-40I-LQFP44G STC89C52RC-40I-P STC89C52RC-40I-PDI STC89C52RC-40I-PDIP STC89C52RC-40I-PDIP40 STC89C52RC-40I-PDIP-40 STC89C52RC40I-PDIP40