74F646B NSC [National Semiconductor], 74F646B Datasheet
74F646B
Related parts for 74F646B
74F646B Summary of contents
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... Octal Transceiver Register with TRI-STATE Outputs General Description These devices consist of bus transceiver circuits with TRI- STATE D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers Data on the bus will be ...
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Logic Symbols (Continued) IEEE IEC ’F646 ’F646B Connection Diagrams Pin Assignment for DIP SOIC and Flatpak ’F646 ’F646B Pin Assignment for LCC ’F646 ’F646B IEEE IEC TL F 9580–4 Pin Assignment for DIP SOIC and Flatpak TL F 9580–2 Pin ...
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Unit Loading Fan Out Pin Names Description HIGH LOW A –A Data Register A Inputs 0 7 TRI-STATE Outputs 600 106 6 (80) B –B Data Register B Inputs 0 7 TRI-STATE Outputs 600 106 6 (80) CPAB CPBA Clock ...
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Logic Diagrams (Continued) Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays ’F646 ’F646B 9580– 5 ...
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Logic Diagrams (Continued) Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays ’F648 9580 – 6 ...
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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 Storage Temperature b Ambient Temperature under Bias b Junction Temperature under Bias b Plastic b V Pin Potential ...
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AC Electrical Characteristics Symbol Parameter f Maximum Clock Frequency max t Propagation Delay PLH t Clock to Bus PHL t Propagation Delay PLH t Bus to Bus (’F646) PHL t Propagation Delay PLH t Bus to Bus (’F648) ...
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AC Electrical Characteristics Symbol Parameter f Maximum Clock Frequency max t Propagation Delay PLH t Clock to Bus PHL t Propagation Delay PLH t Bus to Bus PHL t Propagation Delay PLH t SBA or SAB ...
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Physical Dimensions inches (millimeters) 28-Lead Ceramic Leadless Chip Carrier Type C 24-Lead (0 300 Wide) Ceramic Dual-In-Line Package (SD) NS Package Number E28A NS Package Number J24F 9 ...
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Physical Dimensions inches (millimeters) (Continued) 24-Lead (0 300 Wide) Molded Small Outline Package JEDEC (S) NS Package Number M24B 10 ...
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Physical Dimensions inches (millimeters) (Continued) 24-Lead Molded Shrink Small Outline Package EIAJ Type II 24-Lead (0 300 Wide) Molded Dual-In-Line Package (SP) NS Package Number MSA24 NS Package Number N24C 11 ...
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Physical Dimensions inches (millimeters) (Continued) 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 ...