Octal Transparent D-type Flip-flops With 3-state Outputs

  /ordering information These 8-bit Flip-Flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing Buffer Registers I/O ports, bidirectional Bus Drivers and working Registers The eight Flip-Flops of the ?BCT574 devices are edge-triggered D-type Flip-Flops On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels that were set up at the data (D) inputs. 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. 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. ORDERING INFORMATION
Item: SN54BCT574
File Size : 69 KB
Pages : 18 Pages

Other Part Numbers in this pdf file

SNJ54BCT574W   SNJ54BCT574J   SNJ54BCT574FK   BT574   BCT574  
Texas Instruments Incorporated
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