PDU54-400 4-BIT, ECL-INTERFACED PROGRAMMABLE DELAY LINE (SERIES PDU54)
PDU54-400C4 4-BIT, ECL-INTERFACED PROGRAMMABLE DELAY LINE (SERIES PDU54)
PDU54-400M 4-BIT, ECL-INTERFACED PROGRAMMABLE DELAY LINE (SERIES PDU54)
PDU54-400MC4 4-BIT, ECL-INTERFACED PROGRAMMABLE DELAY LINE (SERIES PDU54)