SN54173J 4-bit D-Type register by Texas Instruments. Packahe: 16-pin CERDIP Extended temperature range of: -50 to 125 ºC. SNJ – Conforms to MIL-PRF-38535 (QML) Downloas Texas Instruments SN54173J datasheet: Status : NOS ( New Old Stock) Tested Components: YES RoHS compliant : n/a