Serial Data Polynomial Generator/Checker
54F 74F402 Serial Data Polynomial Generator Checker
Obsolete
January 1995
54F 74F402 Serial Data Polynomial Generator...
Description
54F 74F402 Serial Data Polynomial Generator Checker
Obsolete
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 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...
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