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| PartNumber | SN54LS540J | SN54LS541J | SN54LS54J |
| Description | Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin CDIP Tube | Buffer/Line Driver 8-CH Non-Inverting 3-ST Bipolar 20-Pin CDIP Tube | AND-OR-Invert Gate 1-Element 4 Wide 2-IN/3-IN Bipolar 14-Pin CDIP Tube |