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TI(德州仪器) SN74ALS174
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  • TI(德州仪器) SN74ALS174
  • TI(德州仪器) SN74ALS174
  • TI(德州仪器) SN74ALS174
  • TI(德州仪器) SN74ALS174
  • TI(德州仪器) SN74ALS174
  • TI(德州仪器) SN74ALS174
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SN74ALS174

SN74ALS174

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具有清零功能的六路 D 类上升沿触发器

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These positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic. All have a direct-clear (CLR) input. The ’ALS175 and ’AS175B feature complementary outputs from each flip-flop.

Information at the data (D) inputs meeting the setup-time requirements is transferred to the 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 (CLK) input is at either the high or low level, the D-input signal has no effect at the output.

These circuits are fully compatible for use with most TTL circuits.

  • ’ALS174 and ’AS174 Contain Six Flip-Flops With Single-Rail Outputs
  • ’ALS175 and ’AS175B Contain Four Flip-Flops With Double-Rail Outputs
  • Buffered Clock and Direct-Clear Inputs
  • Applications Include:
    • Buffer/Storage Registers
    • Shift Registers
    • Pattern Generators
  • Fully Buffered Outputs for Maximum Isolation From External Disturbances (’AS Only)

Number of channels6
Technology familyALS
Supply voltage (min) (V)4.5
Supply voltage (max) (V)5.5
Input typeBipolar
Output typePush-Pull
Clock frequency (max) (MHz)70
IOL (max) (mA)8
IOH (max) (mA)-0.4
Supply current (max) (µA)19000
FeaturesHigh speed (tpd 10-50ns)
Operating temperature range (°C)0 to 70
RatingCatalog
PDIP (N)16181.42 mm² 19.3 x 9.4
SOIC (D)1659.4 mm² 9.9 x 6
SOP (NS)1679.56 mm² 10.2 x 7.8
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