SCLSA03 March   2024 SN74AHC257

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6.   6
  7.   7
  8. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Noise Characteristics
    8. 5.8 Typical Characteristics
  9. 6 Parameter Measurement Information
  10. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Balanced CMOS 3-State Outputs
      2. 7.3.2 Standard CMOS Inputs
      3. 7.3.3 Clamp Diode Structure
    4. 7.4 Device Functional Modes
  11. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
    3. 8.3 Design Requirements
      1. 8.3.1 Power Considerations
      2. 8.3.2 Input Considerations
      3. 8.3.3 Output Considerations
    4. 8.4 Detailed Design Procedure
    5. 8.5 Application Curve
    6. 8.6 Power Supply Recommendations
    7. 8.7 Layout
      1. 8.7.1 Layout Guidelines
      2. 8.7.2 Layout Example
  12. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  13. 10Revision History
  14. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

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

5.5 Electrical Characteristics

over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC TA = 25°C -40°C to 125°C UNIT
MIN TYP MAX MIN TYP MAX
VOH IOH = –50μA 2V to 5.5V VCC-0.1 VCC VCC-0.1 VCC V
IOH = −4mA 3V 2.58 2.48
IOH = −8mA 4.5V 3.94 3.8
VOL IOL = 50μA 2V to 5.5V 0.1 0.1 V
IOL = 4mA 3V 0.36 0.44
IOL = 8mA 4.5V 0.36 0.44
II VI = 5.5V or GND and VCC = 0V to 5.5V 0V to 5.5V ±0.1 ±1 µA
IOZ VO = VCC or GND and VCC = 5.5V 5.5V ±0.25 ±5 µA
ICC VI = VCC or GND, IO = 0, and VCC = 5.5V 5.5V 4 40 µA
CI VI = VCC or GND 5V 2 10 10 pF
CO Vo = VCC or GND 5V 5 6 pF
CPD No load, F = 1MHz 5V 90 pF