These octal buffers and line drivers are designed specifically for low-voltage (3.3-V) V_CC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The ’LVTH244A devices are organized as two 4-bit line drivers with separate output-enable (OE)\ inputs. When OE\ is low, the devices pass 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\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

These devices are fully specified for hot-insertion applications using I_off and power-up 3-state. The I_off circuitry disables the outputs, preventing damaging current backflow through the devices when they are 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.

• Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
• Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
• Support Unregulated Battery Operation Down to 2.7 V
• Ioff and Power-Up 3-State Support Hot Insertion
• Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
• Latch-Up Performance Exceeds 500 mA Per JESD 17
• ESD Protection Exceeds JESD 22
  • 2000-V Human-Body Model (A114-A)
  • 200-V Machine Model (A115-A)

• Technology Family
• LVT
• Supply voltage (Min) (V)
• 2.7
• Supply voltage (Max) (V)
• 3.6
• Number of channels (#)
• 8
• IOL (Max) (mA)
• 48
• ICC (Max) (uA)
• 5000
• IOH (Max) (mA)
• -24
• Input type
• TTL-Compatible CMOS
• Output type
• 3-State
• Features
• Ultra high speed (tpd <5ns), Partial power down (Ioff), Over-voltage tolerant inputs, Power up 3-state, Bus-hold
• Rating
• Space

SN54LVTH244A-SP的完整型号有：5962-9584401V2A、5962-9584401VRA、5962-9584401VSA，以下是这些产品的关键参数及官网采购报价：

5962-9584401V2A，工作温度：-55 to 125，封装：LCCC (FK)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401V2A的批量USD价格：172.788（1000+）

5962-9584401VRA，工作温度：-55 to 125，封装：CDIP (J)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401VRA的批量USD价格：172.788（1000+）

5962-9584401VSA，工作温度：-55 to 125，封装：CFP (W)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9584401VSA的批量USD价格：207.346（1000+）