SN74LS273 Octal D-Type Flip-Flops With Clear | TI.com

SN74LS273
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Octal D-Type Flip-Flops With Clear

 

Description

These monolithic, positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic with a direct clear input.

Information at the D inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When the clock input is at either the high or low level, the D input signal has no effect at the output.

These flip-flops are guaranteed to respond to clock frequencies ranging form 0 to 30 megahertz while maximum clock frequency is typically 40 megahertz. Typical power dissipation is 39 milliwatts per flip-flop for the ´273 and 10 milliwatts for the ´LS273.

 

 

 

Features

  • Contains Eight Flip-Flops With Single-Rail Outputs
  • Buffered Clock and Direct Clear Inputs
  • Individual Data Input to Each Flip-Flop
  • Applications Include:
    • Buffer/Storage Registers
    • Shift Registers
    • Pattern Generators

Parametrics

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Part number Order Technology Family Input type Output type VCC (Min) (V) VCC (Max) (V) Channels (#) Clock Frequency (Max) (MHz) ICC (uA) IOL (Max) (mA) IOH (Max) (mA) Features Rating Package Group
SN74LS273 Order now LS     Bipolar     Push-Pull     4.75     5.25     8     35     27000     8     -0.4     High speed (tpd 10-50ns)     Catalog     PDIP | 20
SOIC | 20
SO | 20    
SN54LS273 Samples not available LS     Bipolar     Push-Pull     4.5     5.5     8     35     27000     8     -0.4     High speed (tpd 10-50ns)     Military     CDIP | 20
CFP | 20
LCCC | 20