CY74FCT825T

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8-Bit Bus Interface Flip-Flops with 3-State Outputs

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Product details

Parameters

Number of channels (#) 8 Technology Family FCT Supply voltage (Min) (V) 4.75 Supply voltage (Max) (V) 5.25 Input type TTL-Compatible CMOS Output type 3-State Clock Frequency (Max) (MHz) 100 IOL (Max) (mA) 64 IOH (Max) (mA) -32 ICC (Max) (uA) 200 Features Very high speed (tpd 5-10ns), Partial power down (Ioff) open-in-new Find other D-type flip-flop

Package | Pins | Size

SOIC (DW) 24 160 mm² 15.5 x 10.3 SSOP (DBQ) 24 52 mm² 8.65 x 6 open-in-new Find other D-type flip-flop

Features

  • Function, Pinout, and Drive Compatible With FCT, F Logic, and AM29825
  • 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

open-in-new Find other D-type flip-flop

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 CY74FCT825T is an 8-bit buffered register with all the CY74FCT823T controls, plus multiple enables (OE\1, OE\2, OE\3) to allow multiuser control of the interface, e.g., CS\, DMA, and RD/WR\. This device 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.

open-in-new Find other D-type flip-flop
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Technical documentation

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Type Title Date
* Data sheet 8-Bit Bus-Interface Register With 3-State Outputs datasheet (Rev. A) Nov. 02, 2001
Selection guide Logic Guide (Rev. AB) Jun. 12, 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
User guide LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
Application note Selecting the Right Level Translation Solution (Rev. A) Jun. 22, 2004
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
User guide CYFCT Parameter Measurement Information Apr. 02, 2001
Selection guide Advanced Bus Interface Logic Selection Guide Jan. 09, 2001

Design & development

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Hardware development

EVALUATION BOARD Download
document-generic User guide
10
Description
This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, P, N, or DGV package in a 14 to 24 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices

CAD/CAE symbols

Package Pins Download
SOIC (DW) 24 View options
SSOP (DBQ) 24 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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