MIL-M-38510-20 Microcircuits, Digital, Ttl, Low Power, Nand Gates ,Monolithic SiliconThis specification covers the detail requirements for monolithic, silicon, TTL, low power positive NAND logic gating microcircuits. Two product assurance classes and a choice of case outlines and lead finishes are provided for each type and are reflected in the complete part number. For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.4.