SN74LVT240A

AKTIV

8-Kanal-Wechselrichter, 2,7 bis 3,6 V, mit TTL-kompatiblen CMOS-Eingängen und Tri-State-Ausgängen

Produktdetails

Technology family LVT Number of channels 8 IOL (max) (mA) 64 IOH (max) (mA) -32 Supply current (max) (µA) 5000 Input type TTL-Compatible CMOS Output type 3-State Features Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Ultra high speed (tpd <5ns) Rating Catalog Operating temperature range (°C) -40 to 85
Technology family LVT Number of channels 8 IOL (max) (mA) 64 IOH (max) (mA) -32 Supply current (max) (µA) 5000 Input type TTL-Compatible CMOS Output type 3-State Features Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Ultra high speed (tpd <5ns) Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm) TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm) SSOP (DB) 20 56.16 mm² (7.2 mm × 7.8 mm) SOP (NS) 20 98.28 mm² (12.6 mm × 7.8 mm)
  • Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
  • Supports Unregulated Battery Operation Down to 2.7 V
  • Typical VOLP (Output Ground Bounce)
       <0.8 V at VCC = 3.3 V, TA = 25°C
  • Ioff and Power-Up 3-State Support Hot Insertion
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

  • Supports Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
  • Supports Unregulated Battery Operation Down to 2.7 V
  • Typical VOLP (Output Ground Bounce)
       <0.8 V at VCC = 3.3 V, TA = 25°C
  • Ioff and Power-Up 3-State Support Hot Insertion
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

This octal buffer and line driver is designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The SN74LVT240A is organized as two 4-bit buffer/line drivers with separate output-enable (OE)\ inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.

When VCC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.

This octal buffer and line driver is designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The SN74LVT240A is organized as two 4-bit buffer/line drivers with separate output-enable (OE)\ inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.

When VCC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.

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* Datenblatt SN74LVT240A datasheet (Rev. K) 14.01.2004

Design und Entwicklung

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Evaluierungsplatine

14-24-LOGIC-EVM — Generisches Logikprodukt-Evaluierungsmodul für 14-polige bis 24-polige D-, DB-, DGV-, DW-, DYY-, NS-

Das 14-24-LOGIC-EVM-Evaluierungsmodul (EVM) ist für die Unterstützung aller Logikgeräte konzipiert, die sich in einem 14-Pin- bis 24-Pin-D-, DW-, DB-, NS-, PW-, DYY- oder DGV-Gehäuse befinden.

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SN74LVT240A Behavioral SPICE Model

SCBM116.ZIP (7 KB) - PSpice-Modell
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SN74LVT240A IBIS Model

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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SOIC (DW) 20 Ultra Librarian
TSSOP (PW) 20 Ultra Librarian
SSOP (DB) 20 Ultra Librarian
SOP (NS) 20 Ultra Librarian

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