SN74ALVCH16836 20-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS

SCES089B - OCTOBER 1996 - REVISED SEPTEMBER 1997

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features

• Member of the Texas Instruments Widebus^TM Family
• EPIC^TM (Enhanced-Performance Implanted CMOS) Submicron Process
• Designed to Comply With JEDEC 168-Pin and 200-Pin SDRAM Buffered DIMM Specification
• Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
• Package Options Include Plastic Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages

  EPIC and Widebus are trademarks of Texas Instruments Incorporated.

description

This 20-bit universal bus driver is designed for 2.3-V to 3.6-V V_CC operation.

Data flow from A to Y is controlled by the output-enable (OE\) input. The device operates in the transparent mode when the latch-enable (LE\) input is low. The A data is latched if the clock (CLK) input is held at a high or low logic level. If LE\ is high, the A data is stored in the latch/flip-flop on the low-to-high transition of CLK. When OE\ is high, the outputs are in the high-impedance state.

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.

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

The SN74ALVCH16836 is characterized for operation from -40°C to 85°C

View more information about generic part numbers:SN74ALVCH16836

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