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CD74HC147

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High Speed CMOS Logic 10-to-4 Line Priority Encoder

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Data sheet

CD74HC147

ACTIVE
Data sheet Order now

Product details

Technology family HC Function Encoder Configuration 10:4 Number of channels 1 Operating temperature range (°C) -55 to 125 Rating Catalog
Technology family HC Function Encoder Configuration 10:4 Number of channels 1 Operating temperature range (°C) -55 to 125 Rating Catalog
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) PDIP (N) 16 181.42 mm² (19.3 mm × 9.4 mm) SOIC (D) 16 59.4 mm² (9.9 mm × 6 mm)
  • Buffered inputs and outputs
  • Typical propagation delay: 13ns at VCC = 5V, CL = 15pF, TA = 25oC
  • Fanout (over temperature range)
    • Bus driver outputs: 15 LSTTL loads
  • Wide operating temperature range: -55oC to 125oC
  • Balanced propagation delay and transition times
  • Significant power reduction compared to LSTTL logic ICs
  • HC types
    • 2V to 6V Operation
    • High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT types
    • 4.5V to 5.5V Operation
    • Direct LSTTL input logic compatibility, VIL= 0.8V (Max), VIH = 2V (Min)
    • CMOS input compatibility, Il ≤ 1µA at VOL, VOH
  • Buffered inputs and outputs
  • Typical propagation delay: 13ns at VCC = 5V, CL = 15pF, TA = 25oC
  • Fanout (over temperature range)
    • Bus driver outputs: 15 LSTTL loads
  • Wide operating temperature range: -55oC to 125oC
  • Balanced propagation delay and transition times
  • Significant power reduction compared to LSTTL logic ICs
  • HC types
    • 2V to 6V Operation
    • High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT types
    • 4.5V to 5.5V Operation
    • Direct LSTTL input logic compatibility, VIL= 0.8V (Max), VIH = 2V (Min)
    • CMOS input compatibility, Il ≤ 1µA at VOL, VOH

The CDx4HC147 and CD74HCT147 are 9-input priority encoders. These devices provide the 10-line to 4-line priority encoding function by use of the implied decimal “zero.”

The CDx4HC147 and CD74HCT147 are 9-input priority encoders. These devices provide the 10-line to 4-line priority encoding function by use of the implied decimal “zero.”
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Technical documentation

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* Data sheet CDx4HC147, CD74HCT147 High-Speed CMOS Logic 10- to 4-Line Priority Encoder datasheet (Rev. G) PDF | HTML Jan 13, 2025

Design & development

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Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

User guide: PDF | HTML
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Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 16 Ultra Librarian
PDIP (N) 16 Ultra Librarian
SOIC (D) 16 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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