54173 Datasheet (National Semiconductor) - TRI-STATE Quad Registers

54173, TRI-STATE Quad Registers

These four-bit registers contain D-type flip-flops with totempole TRI-STATE outputs capable of driving highly capacitive or low-impedance loads The high-impedance state and increased high-logic-level drive provide these flip-flops with the capability of driving the bus lines in a bus-organized syste

54173 Features

* Y Y Y Y Y Y Y Y TRI-STATE outputs interface directly with system bus Gated output control lines for enabling or disabling the outputs Fully independent clock elminates restrictions for operating in one of two modes Parallel load Do nothing (hold) For application as bus buffer registers Typical pr