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74F402PC Datasheet

  • 74F402PC

  • Serial Data Polynomial Generator/Checker

  • 12頁

  • NSC

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54F 74F402 Serial Data Polynomial Generator Checker
January 1995
54F 74F402 Serial Data Polynomial
Generator Checker
General Description
The 鈥橣402 expandable Serial Data Polynomial generator
checker is an expandable version of the 鈥橣401 It provides
an advanced tool for the implementation of the most widely
used error detection scheme in serial digital handling sys-
tems A 4-bit control input selects one-of-six generator poly-
nomials The list of polynomials includes CRC-16 CRC-
CCITT and Ethernet as well as three other standard poly-
nomials (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
鈥橣402 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)
J16A
W16A
E20A
Note 1
Military grade device with environmental and burn-in processing Use suffix
e
DMQB FMQB and LMQB
Logic Symbol
Connection Diagrams
Pin Assignment
for DIP SOIC and Flatpak
Pin Assignment
for LCC
TL F 9535 鈥?1
TL F 9535 鈥?2
TL F 9535鈥?
TRI-STATE is a registered trademark of National Semiconductor Corporation
Ethernet is a registered trademark of Xerox Corporation
C
1995 National Semiconductor Corporation
TL F 9535
RRD-B30M105 Printed in U S A

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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