BS EN 190107:1994(1999) Specification for Harmonized system of quality assessment for electronic components — Family specification — TTL FAST digital integrated circuits — Series 54 F, 74 F
1987BS EN 190107:1994 Specification for harmonized system of quality assessment for electronic components. Family specification. TTL FAST digital integrated circuits series 54 F, 74 F
1987BS EN 190107:1987 Specification for harmonized system of quality assessment for electronic components - Family specification - TTL FAST digital integrated circuits series 54 F, 74 F