MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
High-speed address-chip select time; low-power operation; battery backup operation-2v data retention; produced with advanced high-performance cmos technology; input and output directly ttl-compatible; available in standard 28-pin (300 or 600 mil) ceramic dip, 28-pin (600 mil) plastic dip, 28-pin (300 mil) soj and 32-pin lcc; military product compliant to mil-std-883, class b