SCHS157D February   1998  – February 2022 CD54HC166 , CD54HCT166 , CD74HC166 , CD74HCT166

PRODUCTION DATA  

  1. 1 Features
  2. 2 Description
  3. 3 Revision History
  4. 4 Pin Configuration and Functions
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings (1)
    2. 5.2 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Prerequisite for Switching Characteristics
    6. 5.6 Switching Characteristics
  6. 6 Parameter Measurement Information
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
  8. 8 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • N|16
  • D|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Buffered inputs
  • Fanout (over temperature range)
    • Standard outputs: 10 LSTTL Loads
    • Bus driver outputs: 15 LSTTL Loads
  • Wide operating temperature range: -55℃ to 125℃
  • Balanced propagation delay and transition time
  • Significant power reduction compared to LSTTL Logic ICs
  • HC Types
    • 2 V to 6 V operation
    • High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5 V
  • HCT Types
    • 4.5 V to 5.5 V Operation
    • Direct LSTTL Input Logic Compatibility,
      VIL = 0.8V (Max), VIH = 2 V (Min)