74ABT16821ADL,512

Flip Flops Overview

The 74ABT16821ADL,512 is a 20-bit bus-interface D-type flip-flop manufactured by NXP USA Inc. It features positive-edge triggering and three-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. It supports a maximum operating frequency of 160 MHz at nominal supply conditions. The component is housed in a 56-pin SSOP package with a width of 7.50 mm. It functions as a bus driver with two ports and ten bits per port. The maximum low-level output current is specified at 64 mA. The unit complies with RoHS standards.

Flip Flops Feature Summary

• Positive-edge triggered D-type flip-flop architecture for synchronous data storage
• Three-state outputs enabling efficient bus interfacing and signal isolation
• High-speed operation capability supporting frequencies up to 160 MHz

Flip Flops Applications

• Bus interface circuits requiring high-speed data latching
• Synchronous digital systems utilizing positive-edge clocking
• Memory buffer applications in computer architectures

Flip Flops Procurement Notes

Verify the specific ordering suffix and manufacturer designation when sourcing this component. Confirm that the part number matches the exact 56-pin SSOP configuration required for your PCB layout. Ensure compatibility with the 4.5 V to 5.5 V power supply rails intended for the ABT logic family. Cross-reference the datasheet version to confirm pinout consistency and electrical characteristics before finalizing procurement orders.

Flip Flops Selection Notes

Select this component for designs requiring 20-bit parallel data storage with high-speed performance. The ABT series offers robust drive capabilities suitable for driving multiple loads on a bus. Consider the 56-pin SSOP package constraints regarding board space and thermal management. Verify that the system clock does not exceed the 160 MHz limit to ensure reliable timing margins and signal integrity across all twenty channels.

Flip Flops Part Context

This device belongs to the ABT logic family, which utilizes advanced bipolar transistor technology for high-speed operation. It serves as a bridge between fast processing units and slower memory or peripheral interfaces. The 74ABT16821 variant specifically addresses the need for wide-bus synchronization in complex digital systems. Its design emphasizes low propagation delay and high noise immunity compared to standard TTL equivalents.

Flip Flops Replacement Considerations

Check for direct substitutes from other manufacturers offering identical 20-bit D-flip-flop specifications. Verify pin-to-pin compatibility if replacing in existing designs. Ensure the alternative component supports the same 5.5 V maximum supply voltage and 160 MHz frequency requirements.