54ac521 National Semiconductor Corporation, 54ac521 Datasheet
54ac521
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54ac521 Summary of contents
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... Identity Comparator General Description The AC/ACT521 is an expandable 8-bit comparator. It com- pares two words eight bits each and provides a LOW output when the two words match bit for bit. The expansion input I also serves as an active LOW enable input. ...
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Truth Table H = HIGH Voltage Level L = LOW Voltage Level = Note etc Logic Diagram Please note that this diagram ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( Input Diode Current ( −0. ...
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DC Electical Characteristics for ACT Symbol Parameter V Minimum High Level IH Input Voltage V Maximum Low Level IL Input Voltage V Minimum High Level OH Output Voltage V Maximum Low Level OL Output Voltage Maximum Input I IN Leakage ...
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AC Electrical Characteristics for ACT Symbol Parameter t Propagation Delay PLH Propagation Delay PHL Propagation Delay PLH I ...
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Applications www.national.com Ripple Expansion DS100291-6 Parallel Expansion DS100291-7 6 ...
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Physical Dimensions inches (millimeters) unless otherwise noted www.national.com 20-Lead Ceramic Leadless Chip Carrier Package Number E20A 8 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Ceramic Dual-in-line J20A 20-Lead Cerpack Package Number W20A 9 www.national.com ...
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LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1. Life support devices ...