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PDF 74F402PC Data sheet ( Hoja de datos )
| Número de pieza | 74F402PC | |
| Descripción | Serial Data Polynomial Generator/Checker | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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April 1988
Revised August 1999
74F402
Serial Data Polynomial Generator/Checker
General Description
The 74F402 expandable Serial Data Polynomial generator/
checker is an expandable version of the 74F401. It pro-
vides an advanced tool for the implementation of the most
widely used error detection scheme in serial digital han-
dling systems. A 4-bit control input selects one-of-six gen-
erator polynomials. The list of polynomials includes CRC-
16, CRC-CCITT 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 74F402 is compatible with FAST®
devices and with all TTL families.
Features
s Guaranteed 30 MHz data rate
s Six selectable polynomials
s Other polynomials available
s Separate preset and clear controls
s Expandable
s Automatic right justification
s Error output open collector
s Typical applications: Floppy and other disk storage sys-
tems Digital cassette and cartridge systems Data com-
munication systems
Ordering Code:
Order Number Package Number
Package Description
74F402PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Logic Symbol
Connection Diagram
FAST® is a registered trademark of Fairchild Semiconductor Corporation.
Ethernet® is a registered trademark of Xerox Corporation.
© 1999 Fairchild Semiconductor Corporation DS009535
www.fairchildsemi.com
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| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet 74F402PC.PDF ] | |
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