



SCAS268 - MARCH 1993 - REVISED MARCH 1994
EPIC and Widebus are trademarks of Texas Instrumentsdescription
This 10-bit flip-flop is designed specifically for low-voltage3.3-V VCC operation.
The flip-flops of the SN74ALVC16820 are edge-triggered D-typeflip-flops. On the positive transition of the clock (CLK) input, thedevice provides true data at the Q outputs.
A buffered output-enable (
) input can be used to place the ten outputs in either anormal logic state (high or low level) or a high-impedance state. Inthe high-impedance state, the outputs neither load nor drive the buslines significantly. The high-impedance state and increased driveprovide the capability to drive bus lines without need for interfaceor pullup components.
The output-enable (
)input does not affect the internal operation of the flip-flops. Olddata can be retained or new data can be entered while the outputs arein the high-impedance state.
Active bus-hold circuitry is provided to hold unused or floatingdata inputs at a valid logic level.
The SN74ALVC16820 is available in TI's shrink small-outline (DL)and thin shrink small-outline (DGG) packages, which provide twice theI/O pin count and functionality of standard small-outline packages inthe same printed-circuit-board area.
The SN74ALVC16820 is characterized for operation from -40°Cto 85°C.
View more information about generic part numbers:SN74ALVC16820
Go to the Engineering Design Center to locate information on other TI Semiconductor devices.



