dm74als521 Fairchild Semiconductor, dm74als521 Datasheet

dm74als521

Manufacturer Part Number

dm74als521

Description

Dm74als520 * Dm74als521 8-bit Comparator

Manufacturer

Fairchild Semiconductor

Datasheet

1.DM74ALS521.pdf (5 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

dm74als521WMX

Manufacturer:

FAIRCHILD/仙童

Quantity:

20 000

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DM74ALS520WM

DM74ALS520N

DM74ALS521WM

SM74ALS521N

DM74ALS520 • DM74ALS521

8-Bit Comparator

General Description

These comparators perform an “equal to” comparison of

two 8-bit words with provision for expansion or external

enabling. The matching of the two 8-bit input plus a logic

LOW on the EN input produces the output A

DM74ALS520 and DM74ALS521. The DM74ALS520 and

DM74ALS521 have totem pole outputs for wire AND cas-

cading. Additionally, the DM74ALS520 is provided with B

input pull up termination resistors for analog or switch data.

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Ordering Code

Package Number

M20B

N20A

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

DS006114

B on the

Features

Function Table

Switching specifications at 50 pF

Switching specifications guaranteed over full tempera-

ture and V

Advanced oxide-isolated, ion-implanted Schottky TTL

process

Functionally and pin for pin compatible with LS family

counterpart

Improved output transient handling capability

LOW Logic Level

Don't Care

HIGH Logic Level

Package Description

range

Inputs

Data

September 1986

Revised April 2000

www.fairchildsemi.com

Output

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dm74als521 Summary of contents

Page 1

... The matching of the two 8-bit input plus a logic LOW on the EN input produces the output A DM74ALS520 and DM74ALS521. The DM74ALS520 and DM74ALS521 have totem pole outputs for wire AND cas- cading. Additionally, the DM74ALS520 is provided with B input pull up termination resistors for analog or switch data. ...

Page 2

Logic Diagram www.fairchildsemi.com 2 ...

Page 3

Absolute Maximum Ratings Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Typical JA N Package M Package Recommended Operating Conditions Symbol Parameter V Supply Voltage CC V HIGH Level Input Voltage IH V LOW Level Input ...

Page 4

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide www.fairchildsemi.com Package Number M20B 4 ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-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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