SNJ54BCT574J Datasheet | Texas Instruments

description /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 ponents. 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 PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP - N Tube SN74BCT574N SN74BCT574N 0°C to 70°C SOIC - DW - NS SSOP - DB Tube Tape and reel Tape and reel Tape and reel SN74BCT574DW SN74BCT574DWR SN74BCT574NSR SN74BCT574DBR BCT574 BCT574 BT574 CDIP - J Tube - 55°C to 125°C CFP - W Tube SNJ54BCT574W SNJ54BCT574W LCCC - FK Tube SNJ54BCT574FK SNJ54BCT574FK...