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具有清零端的八路 D 型触发器
Number of channels (#) 8
Technology Family FCT
Supply voltage (Min) (V) 4.5
Supply voltage (Max) (V) 5.5
Input type TTL-Compatible CMOS
Output type Push-Pull
Clock Frequency (Max) (MHz) 70
IOL (Max) (mA) 64
IOH (Max) (mA) -32
ICC (Max) (uA) 200
Features High speed (tpd 10-50ns)
  • Function, Pinout, and Drive Compatible With FCT and F Logic
  • Reduced VOH (Typically = 3.3 V) Versions of Equivalent FCT Functions
  • Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
  • Ioff Supports Partial-Power-Down Mode Operation
  • Matched Rise and Fall Times
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • Fully Compatible With TTL Input and Output Logic Levels
  • CY54FCT273T
    • 32-mA Output Sink Current
    • 12-mA Output Source Current
  • CY74FCT273T
    • 64-mA Output Sink Current
    • 32-mA Output Source Current

The \x92FCT273T devices consist of eight edge-triggered D-type flip-flops with individual D inputs and Q outputs. The common buffered-clock (CP) and master-reset (MR\) inputs load and reset all flip-flops simultaneously. These devices are edge-triggered registers. The state of each D input (one setup time before the low-to-high clock transition) is transferred to the corresponding flip-flop\x92s Q output. All outputs are forced low by a low logic level on the MR\ input.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.