This specification covers the detail requirements for bulk silicon and silicon on sapphire (SOS), static, 4096 bit, random access memory microcircuits. Two product assurance classes, four radiation hardness assurance levels, and a choice of case outlines and lead finishes are provided and are reflected in the part number. For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, (see 6.4).