SCHS246A August   1998  – August 2024 CD74AC251

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Description
  4. 3 Pin Configuration and Functions
  5. 4 Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 Recommended Operating Conditions
    3. 4.3 Thermal Information
    4. 4.4 Electrical Characteristics
    5. 4.5 Switching Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Functional Block Diagram
    2. 6.2 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Power Supply Recommendations
    2. 7.2 Layout
      1. 7.2.1 Layout Guidelines
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support (Analog)
      1. 8.1.1 Related Links
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

3 Pin Configuration and Functions

CD74AC251 CD74AC251 D Package, 16-Pin SOIC (Top View) Figure 3-1 CD74AC251 D Package, 16-Pin SOIC (Top View)
PIN TYPE1 DESCRIPTION
NAME NO.
I3 1 I Input 3
I2 2 I Input 2
I1 3 I Input 1
I0 4 I Input 0
Y 5 I Output
Y 6 I Inverted Output
OE 7 O Output Enable
GND 8 G Ground
S2 9 O Input Select 2
S1 10 O Input Select 1
S0 11 O Input Select 0
I7 12 O Input 7
I6 13 O Input 6
I5 14 O Input 5
I4 15 O Input 4
VCC 16 P Positive Supply
  1. Signal Types: I = Input, O = Output, I/O = Input or Output.