SN74LVCZ240A - Octal Buffer/Driver With 3-State Outputs

This octal buffer/driver is designed for 2.7-V to 3.6-V V_CC operation.

The SN74LVCZ240A is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

This device is organized as two 4-bit buffers/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.

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

When V_CC is between 0 and 1.5 V, the device is 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 V_CC 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 hot-insertion applications using I_off and power-up 3-state. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is 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.

Products containing the "SN74LVCZ240A" keyword are: SN74LVCZ240ADBR , SN74LVCZ240ADBRE4 , SN74LVCZ240ADBRE4 , SN74LVCZ240ADBRG4 , SN74LVCZ240ADBRG4 , SN74LVCZ240ADGVR , SN74LVCZ240ADGVR , SN74LVCZ240ADGVRE4 , SN74LVCZ240ADGVRE4 , SN74LVCZ240ADGVRG4 , SN74LVCZ240ADW , SN74LVCZ240ADW , SN74LVCZ240ADWR , SN74LVCZ240ADWR , SN74LVCZ240AN , SN74LVCZ240AN , SN74LVCZ240ANG4 , SN74LVCZ240ANS , SN74LVCZ240ANSE4 , SN74LVCZ240ANSR

• Operates From 2.7 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 6.5 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
• I_off and Power-Up 3-State Support Hot Insertion
• Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V V_CC)
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
  • 2000-V Human-Body Model (A114-A)
  • 200-V Machine Model (A115-A)
  • 1000-V Charged-Device Model (C101)