54173 registers equivalent, tri-state quad registers.
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.
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.
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