Product details

Technology Family LV-AT Supply voltage (Min) (V) 4.5 Supply voltage (Max) (V) 5.5 Number of channels (#) 8 IOL (Max) (mA) 16 ICC (Max) (uA) 20 IOH (Max) (mA) -16 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Very high speed (tpd 5-10ns), Partial power down (Ioff), Over-voltage tolerant inputs Rating Catalog
Technology Family LV-AT Supply voltage (Min) (V) 4.5 Supply voltage (Max) (V) 5.5 Number of channels (#) 8 IOL (Max) (mA) 16 ICC (Max) (uA) 20 IOH (Max) (mA) -16 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Very high speed (tpd 5-10ns), Partial power down (Ioff), Over-voltage tolerant inputs Rating Catalog
SOIC (DW) 20 132 mm² 12.8 x 10.3 SOP (NS) 20 98 mm² 12.6 x 7.8 TSSOP (PW) 20 29 mm² 4.4 x 6.5 VQFN (RGY) 20 16 mm² 3.5 x 4.5
  • Inputs Are TTL-Voltage Compatible
  • 4.5-V to 5.5-V VCC Operation
  • Typical tpd = 5.4 ns at 5 V
  • Typical VOLP (Output Ground Bounce)
    <0.8 V at VCC = 5 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
    >2.3 V at VCC = 5 V, TA = 25°C
  • Supports Mixed-Mode Voltage Operation on All Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

  • Inputs Are TTL-Voltage Compatible
  • 4.5-V to 5.5-V VCC Operation
  • Typical tpd = 5.4 ns at 5 V
  • Typical VOLP (Output Ground Bounce)
    <0.8 V at VCC = 5 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
    >2.3 V at VCC = 5 V, TA = 25°C
  • Supports Mixed-Mode Voltage Operation on All Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • 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/driver is designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

The SN74LV244AT is organized as two 4-bit buffers/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.

To ensure the high-impedance state during power up or power down, OE shall 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 partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

This octal buffer/driver is designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

The SN74LV244AT is organized as two 4-bit buffers/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.

To ensure the high-impedance state during power up or power down, OE shall 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 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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Technical documentation

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Type Title Date
* Data sheet SN74LV244AT datasheet (Rev. C) 05 Aug 2005
Selection guide Logic Guide (Rev. AB) 12 Jun 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

14-24-LOGIC-EVM — Generic Logic EVM Supporting 14 through 24 Pin PW, DB, D, DW, NS, DYY, and DGV Packages

This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, DYY or DGV package in a 14 to 24 pin count.

User guide: PDF | HTML
Not available on TI.com
Evaluation board

14-24-NL-LOGIC-EVM — Generic 14 through 24 pin non-leaded package evaluation module

Flexible EVM designed to support any logic or translation device that has a BQA, BQB, RGY (14-24 pin), RSV, RJW, or RHL package.
User guide: PDF | HTML
Not available on TI.com
Simulation model

SN74LV244AT Behavioral SPICE Model

SCEM652.ZIP (7 KB) - PSpice Model
Simulation model

SN74LV244AT IBIS Model

SCEM453.ZIP (16 KB) - IBIS Model
Package Pins Download
SO (NS) 20 View options
SOIC (DW) 20 View options
TSSOP (PW) 20 View options
VQFN (RGY) 20 View options

Ordering & quality

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