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74F401PC Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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74F401PC Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 7 page © 1999 Fairchild Semiconductor Corporation DS009534 www.fairchildsemi.com April 1988 Revised August 1999 74F401 CRC Generator/Checker General Description The 74F401 Cycle Redundancy Check (CRC) Generator/ Checker provides an advanced tool for implementing the most widely used error detection scheme in serial digital data handling systems. A 3-bit control input selects one-of- eight generator polynomials. The list of polynomials includes CRC-16 and CRC-CCITT as well as their recipro- cals (reverse polynomials). Automatic right justification is incorporated for polynomials of degree less than 16. Sepa- rate clear and preset inputs are provided for floppy disk and other applications. The Error output indicates whether or not a transmission error has occurred. Another control input inhibits feedback during check word transmission. The 74F401 is fully compatible with all TTL families. Features s Eight selectable polynomials s Error indicator s Separate preset and clear controls s Automatic right justification s Fully compatible with all TTL logic families s 14-pin package s 9401 equivalent s Typical applications: Floppy and other disk storage systems Digital cassette and cartridge systems Data communication systems Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol Connection Diagram Order Number Package Number Package Description 74F401SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 74F401PC N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide |
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