54F402 - National Semiconductor

54F402 Serial Data Polynomial Generator/Checker

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 a.

Features

Y Guaranteed 30 MHz data rate Y Six selectable polynomials Y Other polynomials available Y Separate preset and clear controls Y Expandable Y Automatic right justification Y Error output open collector Y Typical applications Floppy and other disk storage systems Digital cassette and cartridge systems Data communication systems Commercial Military Package Number Package Description 74F402PC N16E 16-Lead (0 300 Wide) Molded Dual-In-Line 54F402DM (Note 1) J16A 16-Lead Ceramic Dual-In-Line 54F402FM (Note 1) W16A 16-Lead Cerpack 54F402LM (Note 1) E20A 20-Lead Ceramic Leadless Chip Ca.