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IEEE 91/91a-1984

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IEEE Standard Graphic Symbols for Logic Functions (Including and incorporating IEEE Std 91a-1991, Supplement to IEEE Standard Graphic Symbols for Logic Functions)

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New IEEE Standard - Inactive-Reserved. Graphic symbols for representing logic functions or physical devices capable of carrying out logic functions are presented. Descriptions of logic functions, the graphic representation of these functions, and examples of their applications are provided. The symbols are presented in the context of electrical applications, but most may also be applied to nonelectrical systems (for example, pneumatic, hydraulic, or mechanical). The supplement provided additional internationally approved graphic symbols and made corrections as needed to IEEE Std 91-1984.
This standard contains graphic symbols for representing logic functions or physical devices capable of carrying out logic functions. Descriptions of logic functions, the graphic representation of these functions, and examples of their applications are given. The symbols are represented in the context of electrical applications, but most may also be applied to nonelectrical systems (for example, pneumatic, hydraulic, or mechanical).
This standard (the combined documents of ANSI/IEEE 91-1984 and its supplement, ANSI/IEEE Std 91a-1991)establishes symbols for representing logic functions or devices. These symbols enable users to understand the logic characteristics of these functions or devices without requiring specific knowledge of their internal characteristics. ANSI/IEEE Std 91a-1991 supplements ANSI/IEEE 91-1984 by providing additional internationally approved graphic symbols for logic functions or devices as well as corrections to the 1984 document.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 91/91a
Publication Date July 13, 1991
Language en - English
Page Count 160
Revision Level
Supercedes
Committee Gyro Accelerometer Panel
Publish Date Document Id Type View
July 13, 1991 91/91a-1984 Revision