74F402

www.DataSheet4U.com 54F 74F402 Serial Data Polynomial Generator Checker January 1995 54F 74F402 Serial Data Polynomial Generator Checker General Description The ’F402 expandable Serial Data Polynomial generator checker is an expandable version of the ’F401 It provides an advanced tool for the implementation of the most widely used error detection scheme in serial digital handling systems A 4-bit control input selects one-of-six generator polynomials The list of polynomials includes CRC-16 CRCCCITT and Ethernet as well as three other standard polynomials (56th order 48th order 32nd order) Individual clear and preset inputs are provided for floppy disk and other applications The Error output indicates whether or not a transmission error has occurred The CWG Control input inhibits feedback during check word transmission The ’F402 is compatible with FAST devices and with all TTL families Features Y Y Y Y Y Y Y Y Guaranteed 30 MHz data rate Six selectable polynomials Other polynomials available Separate preset and clear controls Expandable Automatic right justification Error output open collector Typical applications Floppy and other disk storage systems Digital cassette and cartridge systems Data communication systems Commercial 74F402PC Military Package Number N16E Package Description 16-Lead (0 300 Wide) Molded Dual-In-Line 16-Lead Ceramic Dual-In-Line 16-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C 54F402DM (Note 1) 54F402FM (Note 1) 54F402LM (Note 1) J...