74F401PC Fairchild Semiconductor, 74F401PC Datasheet

IC PARITY GEN/CHKER 16BIT 14DIP

74F401PC

Manufacturer Part Number
74F401PC
Description
IC PARITY GEN/CHKER 16BIT 14DIP
Manufacturer
Fairchild Semiconductor
Series
74Fr
Datasheet

Specifications of 74F401PC

Logic Type
Parity Generator/Checker
Number Of Circuits
16-Bit
Current - Output High, Low
1mA, 20mA
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
14-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
74F401
© 1999 Fairchild Semiconductor Corporation
74F401SC
74F401PC
74F401
CRC Generator/Checker
General Description
The 74F401 Cycle Redundancy Check (CRC) Generator/
Checker provides an advanced tool for implementing the
most widely used error detection scheme in serial digital
data handling systems. A 3-bit control input selects one-of-
eight generator polynomials. The list of polynomials
includes CRC-16 and CRC-CCITT as well as their recipro-
cals (reverse polynomials). Automatic right justification is
incorporated for polynomials of degree less than 16. Sepa-
rate clear and preset inputs are provided for floppy disk
and other applications. The Error output indicates whether
or not a transmission error has occurred. Another control
input inhibits feedback during check word transmission.
The 74F401 is fully compatible with all TTL families.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Order Number
Package Number
M14A
N14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
DS009534
Features
Connection Diagram
Eight selectable polynomials
Error indicator
Separate preset and clear controls
Automatic right justification
Fully compatible with all TTL logic families
14-pin package
9401 equivalent
Typical applications:
Floppy and other disk storage systems
Digital cassette and cartridge systems
Data communication systems
Package Description
April 1988
Revised August 1999
www.fairchildsemi.com

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74F401PC Summary of contents

Page 1

... Package Number 74F401SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 74F401PC N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. ...

Page 2

Unit Loading/Fan Out Pin Names S –S Polynomial Select Inputs Data Input Clock Input (Operates on HIGH-to-LOW Transition) CP CWE Check Word Enable Input Preset (Active LOW) Input P MR Master Reset (Active HIGH) Input Q Data ...

Page 3

Block Diagram FIGURE 1. Equivalent Circuit for X FIGURE 2. Check Word Generation Note 1: Check word Enable is HIGH while data is being clocked, LOW while transmission of check bits. Note 2: 74F401 must be reset or preset before ...

Page 4

Absolute Maximum Ratings Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias V Pin Potential to Ground Pin CC Input Voltage (Note 5) Input Current (Note 5.0 mA Voltage Applied to Output in HIGH State ...

Page 5

AC Electrical Characteristics Symbol Parameter f Maximum Clock Frequency MAX t Propagation Delay PLH PHL t Propagation Delay PHL Propagation Delay PLH Propagation Delay PHL ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow www.fairchildsemi.com Package Number M14A 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...

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