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74F521

Description
8-bit identity comparator
File Size71KB,7 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
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74F521 Overview

8-bit identity comparator

74F521 8-Bit Identity Comparator
April 1988
Revised August 1999
74F521
8-Bit Identity Comparator
General Description
The 74F521 is an expandable 8-bit comparator. It com-
pares two words of up to eight bits each and provides a
LOW output when the two words match bit for bit. The
expansion input I
A=B
also serves as an active LOW enable
input.
Features
s
Compares two 8-bit words in 6.5 ns typ
s
Expandable to any word length
s
20-pin package
Ordering Code:
Order Number
74F521SC
74F521SJ
74F521MSA
74F521PC
Package Number
M20B
M20D
MSA20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
20-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.
Logic Symbols
Connection Diagram
IEEE/IEC
© 1999 Fairchild Semiconductor Corporation
DS009545
www.fairchildsemi.com

74F521 Related Products

74F521 74F521PC 74F521SC
Description 8-bit identity comparator F/FAST SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20 F/FAST SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20
Is it Rohs certified? - conform to conform to
Maker - Fairchild Fairchild
Parts packaging code - DIP SOIC
package instruction - DIP, DIP20,.3 SOP, SOP20,.4
Contacts - 20 20
Reach Compliance Code - unknow unknow
Other features - CASCADABLE CASCADABLE
series - F/FAST F/FAST
JESD-30 code - R-PDIP-T20 R-PDSO-G20
JESD-609 code - e3 e3
length - 26.075 mm 12.8 mm
Logic integrated circuit type - IDENTITY COMPARATOR IDENTITY COMPARATOR
Number of digits - 8 8
Number of functions - 1 1
Number of terminals - 20 20
Maximum operating temperature - 70 °C 70 °C
Output polarity - INVERTED INVERTED
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - DIP SOP
Encapsulate equivalent code - DIP20,.3 SOP20,.4
Package shape - RECTANGULAR RECTANGULAR
Package form - IN-LINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) - NOT APPLICABLE 260
power supply - 5 V 5 V
propagation delay (tpd) - 11 ns 11 ns
Certification status - Not Qualified Not Qualified
Maximum seat height - 5.08 mm 2.65 mm
Maximum supply voltage (Vsup) - 5.5 V 5.5 V
Minimum supply voltage (Vsup) - 4.5 V 4.5 V
Nominal supply voltage (Vsup) - 5 V 5 V
surface mount - NO YES
technology - TTL TTL
Temperature level - COMMERCIAL COMMERCIAL
Terminal surface - Matte Tin (Sn) Matte Tin (Sn)
Terminal form - THROUGH-HOLE GULL WING
Terminal pitch - 2.54 mm 1.27 mm
Terminal location - DUAL DUAL
Maximum time at peak reflow temperature - NOT APPLICABLE NOT SPECIFIED
width - 7.62 mm 7.5 mm
Base Number Matches - 1 1
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