CY74FCT2827T - 10-Bit Buffers/Drivers with 3-State Outputs and Series Damping Resistors

The CY74FCT2827T 10-bit buffer provides high-performance bus-interface buffering for wide data/address paths or buses carrying parity. This 10-bit buffer has NANDed output-enable (OE\) inputs for maximum control flexibility. The CY74FCT2827T is designed for high-capacitance-load drive capability, while providing low-capacitance bus loading at both inputs and outputs. All inputs have clamp diodes and all outputs are designed for low-capacitance bus loading in the high-impedance state. On-chip termination resistors at the outputs reduce system noise caused by reflections. The CY74FCT2827T can replace the CY74FCT827T to reduce noise in an existing design.

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

• Function and Pinout Compatible With FCT, F, and AM29827 Logic
• 25- Output Series Resistors Reduce Transmission-Line Reflection Noise
• Reduced V_OH (Typically = 3.3 V) Versions of Equivalent FCT Functions
• Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
• I_off 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
• 12-mA Output Sink Current
• 15-mA Output Source Current
• 3-State Outputs