SN74ALS841DWR

Overview

The SN74ALS841DWR is a 10-bit bus-interface D-type latch with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of 0°C to 70°C. The device features noninverting data inputs and buffered control inputs to reduce DC loading effects. Propagation delay from the data input (D) to the output (Q) ranges from 2 ns to 13 ns, while the latch enable (LE) to output delay spans 7 ns to 26 ns under standard load conditions.

Feature Summary

• Features 3-state buffer-type outputs designed to drive highly capacitive or low-impedance loads directly without interface components.
• Includes buffered control inputs to minimize DC loading effects on upstream circuitry.
• Provides a power-up high-impedance state to ensure safe initialization during system startup.

Applications

• Implementing buffer registers in digital systems
• Configuring I/O ports for peripheral interfaces
• Serving as bidirectional bus drivers
• Functioning as working registers in memory architectures

Procurement Notes

Verify that the specific orderable part number matches the required SOIC package configuration. Confirm RoHS compliance status and lead finish specifications against current project requirements. Ensure the selected variant aligns with the specified operating temperature range and voltage parameters defined in the datasheet.

Selection Notes

Select this component when designing systems requiring 10-bit latching with high-drive capability for bus structures. Consider the ALS series characteristics for balanced speed and power consumption. Verify compatibility with existing logic families regarding voltage levels and input/output current requirements before integration.

Part Context

This device belongs to the SN74ALS841 family of 10-bit bus-interface D-type latches. It shares functional similarities with the SN74AS841A and SN74ALS842, differing primarily in propagation speeds and output drive strengths. The DW package denotes a plastic small-outline form factor suitable for surface-mount applications.

Replacement Considerations

SN74ALS841DW