CY74FCT823T 9-Bit Bus Interface Flip-Flops with 3-State Outputs | TI.com

CY74FCT823T
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9-Bit Bus Interface Flip-Flops with 3-State Outputs

 

Description

This bus-interface register is designed to eliminate the extra packages required to buffer existing registers and provide extra data width for wider address/data paths or buses carrying parity. The CY74FCT823T is a 9-bit-wide buffered register with clock-enable (EN\) and clear (CLR\) inputs that are ideal for parity bus interfacing in high-performance microprogrammed systems. It is ideal for use as an output port requiring high IOL/IOH.

This device is designed for high-capacitance load drive capability, while providing low-capacitance bus loading at both inputs and outputs. Outputs are designed for low-capacitance bus loading in the high-impedance state.

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.

Features

  • Function, Pinout, and Drive Compatible With FCT, F Logic, and AM29823
  • Reduced VOH (Typically = 3.3 V) Version 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
  • Fully Compatible With TTL Input and Output Logic Levels
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • 64-mA Output Sink Current
    32-mA Output Source Current
  • High-Speed Parallel Register With Positive-Edge-Triggered D-Type Flip-Flops
  • Buffered Common Clock-Enable (EN\) and Asynchronous-Clear (CLR\) Inputs
  • 3-State Outputs

Parametrics

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Part number Order Technology Family Input type Output type VCC (Min) (V) VCC (Max) (V) IOL (Max) (mA) IOH (Max) (mA) Rating Package Group
CY74FCT823T Order now FCT     TTL-Compatible CMOS     3-State     4.75     5.25     64     -32     Catalog     SOIC | 24
SSOP | 24