LOGIC, FLIP FLOP BUS 8BIT, 24SOIC; Logic IC Function:Octal Bus Interface Flip-Flop with 3-State Outputs; Logic IC Family:BCT; Logic IC Base Number:7429825; Frequency:125MHz; Min Supply Voltage:4.5V; Max Supply Voltage:5.5V; Case Style:SOIC; Operating Temperature Range:0°C to +70°C; No. of Pins:24; Termination Type:SMD
These 8-bit bus-interface flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers. The eight flip-flops are edge-triggered D-type flip-flops. With the clock-enable () input low, the device enters data on the low-to-high transition of the clock. Taking high disables the clock buffer, thus latching the outputs. Taking the clear () input low causes the eight Q outputs to go low independently of the clock. Buffered output-enable (,, or) inputs can be used to place the eight outputs in either a normal logic state (high or low) 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. The output-enable inputs do not affect the internal operation 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 SN54BCT29825 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74BCT29825 is characterized for operation from 0°C to 70°C.