HomedatasheetSN74ABT16821DLG4

SN74ABT16821DLG4 Datasheet

Flip Flops
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Description

These 20-bit flip-flops ( SN74ABT16821DLG4 ) 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 ’ABT16821 can be used as two 10-bit flip-flops or one 20-bit flip-flop. The 20 flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs. A buffered output-enable (OE) input can be used to place the ten outputs in either a normal logic state (high or low logic level) 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. OE does 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. SN74ABT16821DLG4 Features •Significantly Reduces Power Dissipation• Distributed VCC and GND Pin Configuration•Minimizes High-Speed Switching Noise•Package Options Include Plastic Thin•Shrink Small-Outline (DGG), 300-mil Shrink•Small-Outline (DL) Packages and 380-mil•Fine-Pitch Ceramic Flat (WD) Package•Using 25-mil Center-to-Center Spacings
Features

Parameters

[{"Name":" Propagation Delay Time:","Value":"5.1 ns"},{"Name":" High Level Output Current:","Value":"- 32 mA"},{"Name":"Low Level Output Current:","Value":"64 mA"},{"Name":"Supply Voltage - Max:","Value":"5.5 V"},{"Name":"Maximum Operating Temperature:","Value":"+ 85 C"},{"Name":"Minimum Operating Temperature:","Value":"- 40 C"},{"Name":" Supply Voltage - Min:","Value":"4.5 V"},{"Name":"Number of Input Lines:","Value":"10"},{"Name":" Number of Output Lines:","Value":"10"},{"Name":"","Value":""}]

Manufacturer information

DALLAS SEMICONDUCTOR
Warm Hint

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