SN74LVC16240
16-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS

SCAS312A - NOVEMBER 1993 - REVISED JULY 1995

features

• Member of the Texas Instruments Widebus^TM Family
• EPIC ^TM (Enhanced-Performance Implanted CMOS) Submicron Process
• 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
• Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
• Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V V_CC)
• Package Options Include Plastic 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages

  EPIC and Widebus are trademarks of Texas Instruments Incorporated.

   

description

This 16-bit buffer/driver is designed for 2.7-V to 3.6-V V_CC operation; it can interface to a 5-V system environment.

The SN74LVC16240 is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. This device provides inverting outputs and symmetrical (active-low output-enable) inputs.

To ensure the high-impedance state during power up or power down, 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.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN74LVC16240 is characterized for operation from -40°C to 85°C.