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74F402PC Datasheet

  • 74F402PC

  • Serial Data Polynomial Generator/Checker

  • 9頁

  • FAIRCHILD

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74F402 Serial Data Polynomial Generator/Checker
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廬, as well as three other
standard polynomials (56
th
order, 48
th
order, 32
nd
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廬
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
74F402PC
Package Number
N16E
Package Description
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Logic Symbol
Connection Diagram
FAST廬 is a registered trademark of Fairchild Semiconductor Corporation.
Ethernet廬 is a registered trademark of Xerox Corporation.
漏 1999 Fairchild Semiconductor Corporation
DS009535
www.fairchildsemi.com

74F402PC 產(chǎn)品屬性

  • 25

  • 集成電路 (IC)

  • 邏輯 - 奇偶校驗發(fā)生器和校驗器

  • 74F

  • 奇偶校驗發(fā)生器/校驗器

  • 16 位

  • 5.7mA，16mA

  • 4.5 V ~ 5.5 V

  • 0°C ~ 70°C

  • 通孔

  • 16-DIP（0.300"，7.62mm）

  • 16-DIP

  • 74F402

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