Product details

Technology family FCT Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Number of channels 8 IOL (max) (mA) 64 IOH (max) (mA) -32 Supply current (max) (µA) 500 Input type TTL-Compatible CMOS Output type 3-State Features High speed (tpd 10-50ns) Rating Catalog Operating temperature range (°C) -40 to 85
Technology family FCT Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Number of channels 8 IOL (max) (mA) 64 IOH (max) (mA) -32 Supply current (max) (µA) 500 Input type TTL-Compatible CMOS Output type 3-State Features High speed (tpd 10-50ns) Rating Catalog Operating temperature range (°C) -40 to 85
SSOP (DBQ) 20 51.9 mm² 8.65 x 6
  • 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
  • CY54FCT540T
    • 48-mA Output Sink Current
    • 12-mA Output Source Current
  • CY74FCT540T
    • 64-mA Output Sink Current
    • 32-mA Output Source Current
  • 3-State Outputs

  • 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
  • CY54FCT540T
    • 48-mA Output Sink Current
    • 12-mA Output Source Current
  • CY74FCT540T
    • 64-mA Output Sink Current
    • 32-mA Output Source Current
  • 3-State Outputs

The \x92FCT540T inverting buffers/line drivers can 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 dissipation. 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.

The \x92FCT540T inverting buffers/line drivers can 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 dissipation. 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.

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Technical documentation

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Type Title Date
* Data sheet 8-Bit Buffers/Line Drivers With 3-State Outputs datasheet (Rev. A) 01 Oct 2001
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note Selecting the Right Level Translation Solution (Rev. A) 22 Jun 2004
User guide CYFCT Parameter Measurement Information 02 Apr 2001
Selection guide Advanced Bus Interface Logic Selection Guide 09 Jan 2001

Design & development

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Simulation model

CY74FCT540T Behavioral SPICE Model

SCCM015.ZIP (7 KB) - PSpice Model
Package Pins Download
SSOP (DBQ) 20 View options

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