74LVC540A

Description

The 74LVC540A is an octal inverting buffer/driver is designed for driving bus lines or buffer memory address registers. 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 eight outputs are in the high-impedance state.

These devices feature inputs and outputs on opposite sides of the package that facilitate printed circuit board layout. The device is designed for operation with a power supply range of 1.65V to 3.6V.

The inputs are tolerant to 5.5V allowing this device to be used in a mixed voltage environment. The device is fully specified for partial power down applications using I_OFF. The I_OFF circuitry disables the output preventing damaging current backflow when the device is powered down.

Feature(s)

• Supply Voltage Range from 1.65V to 3.6V 
• Sinks or Sources 24mA at VCC = 3V 
• CMOS Low Power Consumption 
• IOFF Supports Partial Power Down Operation 
• Inputs or Outputs Accept Up to 5.5V 
• Inputs Can Be Driven by 3.3V or 5V Allowing for Mixed Voltage Applications 
• Schmitt Trigger Action at All Inputs 
• Typical VOLP (Quiet Output Ground Bounce) Less Than 0.8V with VCC = 3.3V and TA = +25°C 
• Typical VOHV (Quiet Output dynamic VOH) Greater than 2.0V with VCC = 3.3V and TA = +25°C 
• ESD Protection Tested per JESD 22
  • Exceeds 200-V Machine Model (A115) 
  • Exceeds 2000-V Human Body Model (A114) 
  • Exceeds 1000-V Charged Device Model (C101) 
• Latch-Up Exceeds 250mA per JESD 78, Class I 
• All devices are:
  • Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2) 
  • Halogen and Antimony Free. “Green” Device (Note 3) 

Application(s)

• General Purpose Logic 
• Bus Driving 
• Power Down Signal Isolation 
• Wide array of products such as:
  • PCs, Notebooks, Netbooks, Ultrabooks 
  • Networking Computer Peripherals, Hard Drives, CD/DVD ROM 
  • TV, DVD, DVR, set top box