CY74FCT2245T

ACTIVO

Transceptores de bus octal con salidas de 3 estados y resistencias de amortiguación serie

Detalles del producto

Number of channels 8 IOL (max) (mA) 12 IOH (max) (mA) -15 Input type TTL Output type TTL Features Damping resistors, Partial power down (Ioff), Very high speed (tpd 5-10ns) Technology family FCT Rating Catalog Operating temperature range (°C) -40 to 85
Number of channels 8 IOL (max) (mA) 12 IOH (max) (mA) -15 Input type TTL Output type TTL Features Damping resistors, Partial power down (Ioff), Very high speed (tpd 5-10ns) Technology family FCT Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm) SSOP (DBQ) 20 51.9 mm² (8.65 mm × 6 mm) PDIP (N) 20 228.702 mm² (24.33 mm × 9.4 mm) TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • Function and Pinout Compatible With FCT and F Logic
  • 25- Output Series Resistors to Reduce Transmission-Line Reflection Noise
  • Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
  • Ioff Supports Partial-Power-Down Mode Operation
  • 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)
  • 12-mA Output Sink Current
    15-mA Output Source Current
  • 3-State Outputs

  • Function and Pinout Compatible With FCT and F Logic
  • 25- Output Series Resistors to Reduce Transmission-Line Reflection Noise
  • Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
  • Ioff Supports Partial-Power-Down Mode Operation
  • 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)
  • 12-mA Output Sink Current
    15-mA Output Source Current
  • 3-State Outputs

The CY74FCT2245T contains eight noninverting, bidirectional buffers with 3-state outputs intended for bus-oriented applications. On-chip termination resistors at the outputs reduce system noise caused by reflections. For this reason, the CY74FCT2245T can replace the CY74FCT245T in an existing design. The CY74FCT2245T current-sinking capability is 12 mA at the A and B ports.

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

The CY74FCT2245T contains eight noninverting, bidirectional buffers with 3-state outputs intended for bus-oriented applications. On-chip termination resistors at the outputs reduce system noise caused by reflections. For this reason, the CY74FCT2245T can replace the CY74FCT245T in an existing design. The CY74FCT2245T current-sinking capability is 12 mA at the A and B ports.

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

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 8-Bit Transceiver With 3-State Outputs datasheet (Rev. B) 2/11/2001
* Guía del usuario CYFCT Parameter Measurement Information 2/04/2001

Diseño y desarrollo

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Placa de evaluación

14-24-LOGIC-EVM — Módulo de evaluación genérico de productos lógicos para encapsulados D, DB, DGV, DW, DYY, NS y PW de

El módulo de evaluación (EVM) 14-24-LOGIC-EVM está diseñado para admitir cualquier dispositivo lógico que se encuentre en un encapsulado D, DW, DB, NS, PW, DYY o DGV de 14 a 24 pines.

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Productos y hardware compatibles
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (DW) 20 Ultra Librarian
SSOP (DBQ) 20 Ultra Librarian
PDIP (N) 20 Ultra Librarian
TSSOP (PW) 20 Ultra Librarian

Pedidos y calidad

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