SN74LVC32244 - 32-Bit Buffer/Driver With 3-State Outputs

This 32-bit buffer/driver is designed for 1.65-V to 3.6-V V_CC operation.

The SN74LVC32244 is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

The device can be used as eight 4-bit buffers, four 8-bit buffers, two 16-bit buffers, or one 32-bit buffer. It provides true outputs and symmetrical active-low output-enable (OE)\ inputs.

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.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is 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.

Products containing the "SN74LVC32244" keyword are: SN74LVC32244GKER , SN74LVC32244GKER , SN74LVC32244ZKER , SN74LVC32244ZKER

• Member of the Texas Instruments Widebus+™ Family
• Operates From 1.65 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 4.1 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
• I_off Supports Partial-Power-Down Mode Operation
• Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V V_CC)

Widebus+ is a trademark of Texas Instruments.