SLVSJC2 July   2025 SN74AHCT273-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 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 Noise Characteristics
    7. 5.7 Timing Characteristics
    8. 5.8 Switching Characteristics
    9. 5.9 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Balanced CMOS Push-Pull Outputs
      2. 7.3.2 TTL-Compatible CMOS Inputs
      3. 7.3.3 Wettable Flanks
      4. 7.3.4 Clamp Diode Structure
    4. 7.4 Device Functional Modes
  9. 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
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

4 Pin Configuration and Functions

SN74AHCT273-Q1 SN74AHCT273-Q1 RKS Package (Top View)Figure 4-1 SN74AHCT273-Q1 RKS Package
(Top View)
SN74AHCT273-Q1 SN74AHCT273-Q1 PW, DGS Package (Top View)Figure 4-2 SN74AHCT273-Q1 PW, DGS Package
(Top View)
Pin Functions
PIN TYPE(1) DESCRIPTION
NAME NO.
CLR 1 I Clear for all channels, active low
1Q 2 O Output for channel 1
1D 3 I Input for channel 1
2D 4 I Input for channel 2
2Q 5 O Output for channel 2
3Q 6 O Output for channel 3
3D 7 I Input for channel 3
4D 8 I Input for channel 4
4Q 9 O Output for channel 4
GND 10 G Ground
CLK 11 I Clock for all channels, rising edge triggered
5Q 12 O Output for channel 5
5D 13 I Input for channel 5
6D 14 I Input for channel 6
6Q 15 O Output for channel 6
7Q 16 O Output for channel 7
7D 17 I Input for channel 7
8D 18 I Input for channel 8
8Q 19 O Output for channel 8
VCC 20 P Postive supply
Thermal Pad(2) — The thermal pad can be connected to GND or left floating. Do not connect to any other signal or supply.
(1) Signal Types: I = Input, O = Output, G = Ground, P = Power.
(2) WRKS package only.