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8401001LA +BOM

Flip Flop 2 Element D-Type 4 Bit Positive Edge 24-CDIP (0.300", 7.62mm)

8401001LA Allgemeine Beschreibung

These dual 4-bit D-type edge-triggered flip-flops feature 3-state outputs designed specifically as bus drivers. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The edge-triggered flip-flops enter data on the low-to-high transition of the clock (CLK) input. The SN54ALS874B, SN74ALS874B, and SN74AS874 have clear () inputs and noninverting Q outputs. The SN74ALS876A and SN74AS876 have preset () inputs and inverting Q\ outputs; taking low causes the four Q or Q\ outputs to go low independently of the clock.

The SN54ALS874B is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS874B, SN74ALS876A, SN74AS874, and SN74AS876 devices are characterized for operation from 0°C to 70°C.

Hauptmerkmale

  • 3-State Buffer-Type Outputs Drive Bus Lines Directly
  • Bus-Structured Pinout
  • Choice of True or Inverting Logic
    • SN54ALS874B, SN74ALS874B, SN74AS874 Have True Outputs
    • SN74ALS876A, SN74AS876 Have Inverting Outputs
  • Asynchronous Clear
  • Package Options Include Plastic Small-Outline (DW) Packages, Plastic (FN) and Ceramic (FK) Chip Carriers, and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs

Spezifikationen

Series 54ALS Function Master Reset
Type D-Type Output Type Tri-State, Non-Inverted
Number of Elements 2 Number of Bits per Element 4
Clock Frequency 25 MHz Max Propagation Delay @ V, Max CL 18ns @ 5V, 50pF
Trigger Type Positive Edge Current - Output High, Low 1mA, 12mA
Voltage - Supply 4.5V ~ 5.5V Current - Quiescent (Iq) 32 mA
Operating Temperature -55°C ~ 125°C (TA) Mounting Type Through Hole

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