SN54LVC541A - OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

The SN54LVC541A octal buffer/driver is designed for 2.7-V to 3.6-V V_CC operation, and the SN74LVC541A octal buffer/driver is designed for 1.65-V to 3.6-V V_CC operation.

The ’LVC541A devices are ideal for driving bus lines or buffering memory address registers.

These devices feature inputs and outputs on opposite sides of the package to 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 eight outputs are in the high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.

These devices are fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

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.

• Operate From 1.65 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 5.1 ns at 3.3 V
• Typical V_OLP (Output Ground Bounce)
  <0.8 V at V_CC = 3.3 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot)
  >2 V at V_CC = 3.3 V, T_A = 25°C
• Support Mixed-Mode Signal Operation on
  All Ports (5-V Input/Output Voltage With
  3.3-V V_CC)
• I_off 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)
• On Products Compliant to MIL-PRF-38535,
  All Parameters Are Tested Unless Otherwise Noted.
  On All Other Products, Production Processing Does
  Not Necessarily Include Testing of All Parameters.