MM54C85W/883 National Semiconductor, MM54C85W/883 Datasheet

MM54C85W/883

Manufacturer Part Number

MM54C85W/883

Description

Manufacturer

National Semiconductor

Datasheet

1.MM54C85W883.pdf (4 pages)

Specifications of MM54C85W/883

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C 1995 National Semiconductor Corporation

MM54C85 MM74C85 4-Bit Magnitude Comparator

General Description

The MM54C85 MM74C85 is a four-bit magnitude compara-

tor which will perform comparison of straight binary or BCD

codes The circuit consists of eight comparing inputs (A0

A1 A2 A3 B0 B1 B2 B3) three cascading inputs (A

and determines whether they are ‘‘greater than ’’ ‘‘less

than ’’ or ‘‘equal to’’ each other by a high level on the appro-

priate output For words greater than four-bits units can be

cascaded by connecting the outputs (A

addition the least significant stage must have a high level

voltage (V

Logic Diagram

B and A

B) This device compares two four-bit words (A and B)

B) of the least significant stage to the cascade inputs

B A

IN(0)

IN(1)

B and A

) applied to A

) applied to the A

B) and three outputs (A

B) of the next-significant stage In

TL F 5886

B and A

B input and low level

B inputs

B A

B and

Features

TTL compatibility

Wide supply voltage range

Guaranteed noise margin

High noise immunity

Low power

Expandable to ‘N’ stages

Applicable to binary or BCD

Low power pinout 54L85 74L85

RRD-B30M105 Printed in U S A

September 1989

0 4 V

3 0V to 15V

fan out of 2

driving 74L

TL F 5886 – 1

(typ )

1 0V

Related parts for MM54C85W/883

MM54C85W/883 Summary of contents

Page 1

... A B input and low level e IN(1) voltage (V ) applied and IN(0) Logic Diagram C 1995 National Semiconductor Corporation TL F 5886 Features Wide supply voltage range Y Guaranteed noise margin Y High noise immunity Low power Y ...

Page 2

... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Voltage at Any Pin Operating Temperature Range MM54C85 MM74C85 Storage Temperature Range DC Electrical Characteristics Symbol Parameter CMOS TO CMOS V Logical ‘‘1’’ Input Voltage ...

Page 3

Typical Applications Four Digit Comparator Truth Table Comparing Inputs ...

Page 4

... Hong Kong Ltd 49) 0-180-530 85 86 13th Floor Straight Block a Ocean Centre 5 Canton Rd 49) 0-180-530 85 85 Tsimshatsui Kowloon a Tel ( 49) 0-180-532 78 32 Hong Kong a 49) 0-180-532 93 58 Tel (852) 2737-1600 a Tel ( 49) 0-180-534 16 80 Fax (852) 2736-9960 a National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 ...

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