



SCES012D - JULY 1995 - REVISED JANUARY 1998
Series Resistors, So No External Resistors Are RequiredEPIC and Widebus are trademarks of Texas Instruments Incorporated.
This 10-bit flip-flop is designed for 2.3-V to 3.6-V VCC operation.
The SN74ALVCH162820 flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs.
A buffered output-enable (OE\) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.
OE\ does not affect the internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
The outputs, which are designed to sink up to 12 mA, include equivalent 26-
resistors to reduce overshoot and undershoot.
To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC 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 SN74ALVCH162820 is characterized for operation from -40°C to 85°C.
View more information about generic part numbers:SN74ALVCH162820
Go to the Engineering Design Center to locate information on other TI Semiconductor devices.



