CY74FCT244T Octal Buffers and Line Drivers with 3-State Outputs |

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Octal Buffers and Line Drivers with 3-State Outputs

Octal Buffers and Line Drivers with 3-State Outputs - CY74FCT244T


The \x92FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components.

These devices are 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.


  • 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
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • Matched Rise and Fall Times
  • Fully Compatible With TTL Input and Output Logic Levels
  • CY54FCT244T
    • 48-mA Output Sink Current
      12-mA Output Source Current
  • CY74FCT244T
    • 64-mA Output Sink Current
      32-mA Output Source Current
  • 3-State Outputs


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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) IOL (Max) (mA) IOH (Max) (mA) ICC (uA) Input type Output type Features Data rate (Mbps) Rating Operating temperature range (C) Package Group
CY74FCT244T Order now FCT     4.5     5.5     8     64     -32     200     TTL-Compatible CMOS     3-State     Very high speed (tpd 5-10ns)
Over-voltage tolerant inputs    
140     Catalog     -40 to 85     PDIP | 20
SOIC | 20
SSOP | 20    
CY54FCT244T Samples not available FCT     4.5     5.5     8     64     -32     200     TTL-Compatible CMOS     Push-Pull     Balanced outputs
High speed (tpd 10-50ns)
140     Military     -55 to 125     CDIP | 20
CFP | 20
LCCC | 20