CD74AC273

ACTIVE

Octal D-Type Flip-Flops with Reset

Product details

Number of channels 8 Technology family AC Input type Standard CMOS Output type Push-Pull Clock frequency (max) (MHz) 85 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 160 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
Number of channels 8 Technology family AC Input type Standard CMOS Output type Push-Pull Clock frequency (max) (MHz) 85 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 160 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm) PDIP (N) 20 228.702 mm² (24.33 mm × 9.4 mm)
  • Buffered inputs
  • Typical propagation delay
    • 6.5ns at VCC = 5V, T A = 25°C, CL = 50pF
  • SCR-latchup-resistant CMOS process and circuit design
  • Speed of Bipolar FAST™/AS/S with significantly reduced power consumption
  • Balanced propagation delays
  • AC types feature 1.5v to 5.5v operation and balanced noise immunity at 30% of the supply
  • ±24mA output drive current
    • Fanout to 15 FAST™ ICs
    • Drives 50Ω transmission lines
  • Buffered inputs
  • Typical propagation delay
    • 6.5ns at VCC = 5V, T A = 25°C, CL = 50pF
  • SCR-latchup-resistant CMOS process and circuit design
  • Speed of Bipolar FAST™/AS/S with significantly reduced power consumption
  • Balanced propagation delays
  • AC types feature 1.5v to 5.5v operation and balanced noise immunity at 30% of the supply
  • ±24mA output drive current
    • Fanout to 15 FAST™ ICs
    • Drives 50Ω transmission lines

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.

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.

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CD74HC273 ACTIVE High Speed CMOS Logic Octal D-Type Flip-Flops with Reset Voltage range 2V to 6V, average propagation delay 20ns, average drive strength 8mA

Technical documentation

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* Data sheet CDx4AC273, CDx4ACT273 Octal D Flip-Flop with Reset datasheet (Rev. C) PDF | HTML May 8, 2024
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML Dec 15, 2022

Design & development

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Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

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SOIC (DW) 20 Ultra Librarian
PDIP (N) 20 Ultra Librarian

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