74ABT16841ADL,512

Overview

The 74ABT16841ADL,512 is a 20-bit bus interface latch manufactured by Nexperia (formerly NXP Standard Product business). It consists of two sets of ten D-type latches with 3-State outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40 °C to +85 °C. Key electrical parameters include propagation delays of up to 4.9 ns for data inputs and 4.9 ns for latch enable inputs at maximum limits. Output drive capabilities reach 64 mA in the LOW state and -32 mA in the HIGH state.

Feature Summary

• Provides extra data width for wide address/data paths or buses carrying parity
• Permits live insertion and extraction operations
• Features power-up 3-State and power-up reset functionality

Applications

• High-speed parallel latching applications
• Wide address/data path systems
• Buses carrying parity information
• MOS microprocessor interfaces requiring high speed and light loading

Procurement Notes

Verify that the component source aligns with current manufacturer standards following the transition from NXP Standard Products to Nexperia. Confirm package integrity for the SSOP56 variant and ensure compliance with specified environmental certifications such as RoHS. Cross-reference ordering suffixes to guarantee exact pinout and electrical characteristic matches for your design requirements.

Selection Notes

Select this component when designs require expanded 20-bit data width beyond standard 8-bit or 16-bit latches. It is suitable for MOS microprocessor systems demanding high fan-in capabilities and light loading conditions. Ensure the application environment remains within the specified -40 °C to +85 °C temperature range and utilizes a 5 V supply rail for optimal performance.

Part Context

This part belongs to the 74ABT logic family, known for high-speed CMOS technology. Originally released under Philips Semiconductors and later NXP, production responsibilities shifted to Nexperia in February 2017. The 74ABT16841A serves as a specialized latch solution for complex digital systems needing robust data retention and high-drive output capabilities.

Replacement Considerations

The datasheet indicates that the 74ABTH16841A was discontinued and replaced by the 74ABT16841A series. Verify compatibility with existing PCB footprints if substituting between similar package variants like ADL and ADGG.