SN74ALVCH16828
20-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS

SCES042 - JULY 1995

features

• Member of the Texas Instruments Widebus^TM Family
• EPIC ^TM (Enhanced-Performance Implanted CMOS) Submicron Process
• Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
• 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 20-bit inverting buffer/driver is designed for 2.3-V to 3.6-V V_CC operation.

The SN74ALVCH16828 is composed of two 10-bit sections with separate output-enable signals. For either 10-bit buffer section, the two output-enable (1and 1 or 2 and 2) inputs must both be low for the corresponding Y outputs to be active. If either output-enable input is high, the outputs of that 10-bit buffer section are in the high-impedance state.

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 inputs at a valid logic level.

The SN74ALVCH16828 is available in TI's shrink small-outline (DL) and thin shrink small-outline (DGG) packages, which provide twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The SN74ALVCH16828 is characterized for operation from -40°C to 85°C.