Order Number MM54HCT253J or MM74HCT253J

NS Package Number J16A

Order Number MM74HCT253N

NS Package Number N16E

LIFE SUPPORT POLICY

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT

DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL

SEMICONDUCTOR CORPORATION As used herein

1 Life support devices or systems are devices or

2 A critical component is any component of a life

systems which (a) are intended for surgical implant

support device or system whose failure to perform can

into the body or (b) support or sustain life and whose

be reasonably expected to cause the failure of the life

failure to perform when properly used in accordance

support device or system or to affect its safety or

with instructions for use provided in the labeling can

effectiveness

be reasonably expected to result in a significant injury

to the user

National Semiconductor

National Semiconductor

National Semiconductor

National Semiconductor

Corporation

Europe

Hong Kong Ltd

Japan Ltd

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Tel 81-043-299-2309

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Email cnjwge tevm2nsccom

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Fax 81-043-299-2408

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Deutsch Tel (a49) 0-180-530 85 85

Tsimshatsui Kowloon

Fax 1(800) 737-7018

English

Tel (a49) 0-180-532 78 32

Hong Kong

Fran ais Tel (a49) 0-180-532 93 58

Tel (852) 2737-1600

Italiano

Tel (a49) 0-180-534 16 80

Fax (852) 2736-9960

National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications