资 源 简 介
These octal edge-triggered D-type flip-flops feature 3-state outputs designed specifically for bus driving. The ’HCT574 devices are parTIcularly suitable for implemenTIng buffer registers, I/O ports, bidirecTIonal bus drivers, and working registers.
The eight flip-flops enter data on the low-to-high transiTIon of the clock (CLK) input.
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 the 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 interface or pullup components.
