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74AC520 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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74AC520 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 8 page © 1999 Fairchild Semiconductor Corporation DS010194 www.fairchildsemi.com February 1989 Revised November 1999 74AC520 • 74ACT520 8-Bit Identity Comparator General Description The AC/ACT520 are expandable 8-bit comparators. They compare two words of up to eight bits each and provide a LOW output when the two words match bit for bit. The expansion input IA = B also serves as an active LOW enable input. Features s Compares two 8-bit words in 6.5 ns typ s Expandable to any word length s 20-pin package s Outputs source/sink 24 mA s ACT520 has TTL-compatible inputs Ordering Code: Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbols IEEE/IEC Connection Diagram Pin Descriptions FACT is a trademark of Fairchild Semiconductor Corporation. Order Number Package Number Package Description 74AC520SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body 74AC520PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide 74ACT520SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body 74ACT520SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74ACT520PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Pin Names Description A0–A7 Word A Inputs B0–B7 Word B Inputs TA = B Expansion or Enable Input OA = B Identity Output |
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