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SN74AHC14BQAR SN74AHC14D SN74AHC14D . SN74AHC14DBR SN74AHC14DBRE4 SN74AHC14DBRE4/HA14 SN74AHC14DBRG4 SN74AHC14DE4 SN74AHC14DG4 SN74AHC14DGVR