OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS

The ACT564 are octal D-type edge-triggered Flip-Flops SN54ACT564 SN74ACT564 that feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particu- larly suitable for implementing Buffer Registers I/O ports, bidirectional bus drivers, and working Registers On the positive transition of the Clock (CLK) input, the Q outputs are set to the complements of the Logic levels set up at the data (D) inputs. A buffered output-enable (OE) input places 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. OE does not affect 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 SN54ACT564 is characterized for operation over the full military temperature range of 55C to 125C. The SN74ACT564 is characterized for operation from 40C to 85C. By Texas Instruments
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SN54ACT564 Pinout, Pinouts
SN54ACT564 pinout,Pin out
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