SCHS249C November   1998  – May 2024 CD54AC273 , CD54ACT273 , CD74AC273 , CD74ACT273

PRODUCTION DATA  

  1.   1
  2. Features
  3. Description
  4. Pin Configuration and Functions
  5. Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 ESD Ratings
    3. 4.3 Recommended Operating Conditions
    4. 4.4 Thermal Information
    5. 4.5 Electrical Characteristics
    6. 4.6 Prerequisite for Switching Function
    7. 4.7 Switching Characteristics
  6. Parameter Measurement Information
  7. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Device Functional Modes
  8. Application and Implementation
    1. 7.1 Power Supply Recommendations
    2. 7.2 Layout
      1. 7.2.1 Layout Guidelines
  9. Device and Documentation Support
    1. 8.1 Documentation Support (Analog)
      1. 8.1.1 Related Documentation
    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. Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DB|20
  • N|20
  • DW|20
  • PW|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Description

The ’AC273 and ’ACT273 devices are octal D-type flip-flops with reset that utilize advanced CMOS logic technology. Information at the D input is transferred to the Q output on the positive-going edge of the clock pulse. All eight flip-flops are controlled by a common clock (CP) and a common reset (MR). Resetting is accomplished by a low voltage level independent of the clock.

Device Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2) BODY SIZE(3)
CD74AC273/ CD74ACT273 DW (SOIC, 20) 12.8 mm x 10.3 mm 12.8 mm x 7.5 mm
DB (SSOP, 20) 7.2 mm x 7.8 mm 7.2 mm x 5.3 mm
N (PDIP, 20) 24.33 mm x 9.4 mm 24.33 mm x 6.35 mm
PW (TSSOP, 20) 5.00 mm x 6.4 mm 5.00 mm x 4.4 mm
For more information, see Section 10.
The package size (length × width) is a nominal value and includes pins, where applicable.
The body size (length × width) is a nominal value and does not include pins.
CD54AC273 CD74AC273 CD54ACT273 CD74ACT273 Functional Block Diagram Functional Block Diagram