74LVTH540 Series

8-ch, 2.7-V to 3.6-V inverters with bus-hold, TTL-compatible CMOS inputs and 3-state outputs

Catalog(5 parts)

Part	Number of Bits per Element▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Package / Case▲▼	Package / Case▲▼	Package / Case	Output Type	Logic Type	Operating Temperature▲▼	Operating Temperature▲▼	Mounting Type	Current - Output High, Low▲▼	Supplier Device Package	Number of Elements▲▼
Texas Instruments SN74LVTH540PWR Buffer, Inverting 1 Element 8 Bit per Element 3-State Output 20-TSSOP	8 ul	2.700000047683716 V	3.5999999046325684 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	3-State	Buffer, Inverting	85 °C	-40 °C	Surface Mount	0.03200000151991844 A, 0.06400000303983688 A	20-TSSOP	1 ul
Texas Instruments SN74LVTH540DW Buffer, Inverting 1 Element 8 Bit per Element 3-State Output 20-SOIC	8 ul	2.700000047683716 V	3.5999999046325684 V	0.007493000011891127 m, 0.007499999832361937 m		20-SOIC	3-State	Buffer, Inverting	85 °C	-40 °C	Surface Mount	0.03200000151991844 A, 0.06400000303983688 A	20-SOIC	1 ul
Texas Instruments SN74LVTH540DBR Buffer, Inverting 1 Element 8 Bit per Element 3-State Output 20-SSOP	8 ul	2.700000047683716 V	3.5999999046325684 V	0.0052999998442828655 m, 0.005308600142598152 m		20-SSOP	3-State	Buffer, Inverting	85 °C	-40 °C	Surface Mount	0.03200000151991844 A, 0.06400000303983688 A	20-SSOP	1 ul
Texas Instruments SN74LVTH540NSR Buffer, Inverting 1 Element 8 Bit per Element 3-State Output 20-SO	8 ul	2.700000047683716 V	3.5999999046325684 V	0.0052999998442828655 m, 0.005308600142598152 m		20-SOIC	3-State	Buffer, Inverting	85 °C	-40 °C	Surface Mount	0.03200000151991844 A, 0.06400000303983688 A	20-SO	1 ul
Texas Instruments SN74LVTH540PW Buffer, Inverting 1 Element 8 Bit per Element 3-State Output 20-TSSOP	8 ul	2.700000047683716 V	3.5999999046325684 V	0.004394200164824724 m	0.004399999976158142 m	20-TSSOP	3-State	Buffer, Inverting	85 °C	-40 °C	Surface Mount	0.03200000151991844 A, 0.06400000303983688 A	20-TSSOP	1 ul

Key Features

• 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°CSupport Unregulated Battery Operation Down to 2.7 VIoffand Power-Up 3-State Support Hot InsertionBus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown ResistorsLatch-Up Performance Exceeds 500 mA Per JESD 17ESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)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°CSupport Unregulated Battery Operation Down to 2.7 VIoffand Power-Up 3-State Support Hot InsertionBus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown ResistorsLatch-Up Performance Exceeds 500 mA Per JESD 17ESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)

Description

These octal buffers/drivers are designed specifically for low-voltage (3.3-V) VCCoperation, but with the capability to provide a TTL interface to a 5-V system environment. The ’LVTH540 devices are ideal for driving bus lines or buffer memory address registers. These devices feature inputs and outputs on opposite sides of the package that facilitate printed circuit board layout. The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1\ or OE2\) input is high, all outputs are in the high-impedance state. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. When VCCis between 0 and 1.5 V, the devices are 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 VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. These devices are fully specified for hot-insertion applications using Ioffand power-up 3-state. The Ioffcircuitry 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. These octal buffers/drivers are designed specifically for low-voltage (3.3-V) VCCoperation, but with the capability to provide a TTL interface to a 5-V system environment. The ’LVTH540 devices are ideal for driving bus lines or buffer memory address registers. These devices feature inputs and outputs on opposite sides of the package that facilitate printed circuit board layout. The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1\ or OE2\) input is high, all outputs are in the high-impedance state. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. When VCCis between 0 and 1.5 V, the devices are 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 VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. These devices are fully specified for hot-insertion applications using Ioffand power-up 3-state. The Ioffcircuitry 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.