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74HCT147 Description

The ’HC147 and CD74HCT147 are high speed silicon-gate CMOS devices and are pin-patible with low power Schottky TTL (LSTTL). The ’HC147 and CD74HCT147 9-input priority encoders accept data from nine active LOW inputs (l1 to l9) and provide binary representation on the four active LOW inputs (Y0 to Y3). A priority is assigned to each input so that when two or more inputs are simultaneously active, the input with the...

74HCT147 Key Features

  • Buffered Inputs and Outputs
  • Typical Propagation Delay: CL = 15pF, TA = 25oC
  • Fanout (Over Temperature Range)
  • Standard Outputs
  • 10 LSTTL Loads
  • Bus Driver Outputs
  • 15 LSTTL Loads
  • Wide Operating Temperature Range . . . -55oC to 125oC
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction pared to LSTTL Logic ICs