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CY74FCT245T
  • CY74FCT245T
  • CY74FCT245T
  • CY74FCT245T

CY74FCT245T

ACTIVE

Octal Bus Transceivers with 3-State Outputs

Texas Instruments CY74FCT245T Product Info

1 April 2026 0

Parameters

Supply voltage (min) (V)

4.75

Supply voltage (max) (V)

5.25

Number of channels

8

IOL (max) (mA)

64

IOH (max) (mA)

-32

Input type

TTL

Output type

TTL

Features

Partial power down (Ioff), Very high speed (tpd 5-10ns)

Technology family

FCT

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Package

PDIP (N)-20-228.702 mm² 24.33 x 9.4

Features

  • 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
  • CY54FCT245T
    • 48-mA Output Sink Current
      12-mA Output Source Current
  • CY74FCT245T
    • 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
  • CY54FCT245T
    • 48-mA Output Sink Current
      12-mA Output Source Current
  • CY74FCT245T
    • 64-mA Output Sink Current
      32-mA Output Source Current
  • 3-State Outputs

Description

The x92FCT245T devices contain eight noninverting bidirectional buffers with 3-state outputs and are intended for bus-oriented applications.

The transmit/receive (T/R) input determines the direction of data flow through these bidirectional transceivers. Transmit (active high) enables data from A ports to B ports. The output enable (OE), when high, disables both the A and B ports by putting them in the high-impedance state.

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 x92FCT245T devices contain eight noninverting bidirectional buffers with 3-state outputs and are intended for bus-oriented applications.

The transmit/receive (T/R) input determines the direction of data flow through these bidirectional transceivers. Transmit (active high) enables data from A ports to B ports. The output enable (OE), when high, disables both the A and B ports by putting them in the high-impedance state.

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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