SN74BCT29822 10-BIT BUS-INTERFACE FLIP-FLOP WITH 3-STATE OUTPUTS

SCBS089B - FEBRUARY 1989 - REVISED NOVEMBER 1993

features

• State-of-the-Art BiCMOS Design Significantly Reduces I_CCZ
• ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
• 3-State Buffer-Type Outputs Drive Bus Lines Directly
• Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic 300-mil DIPs (NT)

description

This 10-bit bus-interface flip-flop features 3-state outputsdesigned specifically for driving highly capacitive or relativelylow-impedance loads. It is particularly suitable for implementingwider buffer registers, I/O ports, bidirectional bus drivers withparity, and working registers.

The ten flip-flops are edge-triggered D-type flip-flops. On thepositive transition of the clock, the Q outputs will be complementaryto the data (D\) inputs.

A buffered output-enable () input can be used to place the ten outputs in either anormal logic state (high or low) or a high-impedance state. In thehigh-impedance state, the outputs neither load nor drive the buslines significantly. The high-impedance state and increased driveprovide the capability to drive bus lines without need for interfaceor pullup components.

The output enable ()does not affect the internal operation of the flip-flops. Old datacan be retained or new data can be entered while the outputs are inthe high-impedance state.

The SN74BCT29822 is characterized for operation from 0°C to70°C.

View more information about generic part numbers:SN74BCT29822

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