SN74ALS841NT

Overview

The SN74ALS841NT 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 4.5V to 5.5V and supports an operating temperature from 0°C to 70°C. The device features noninverting data inputs and buffered control inputs to reduce DC loading effects. Key electrical parameters include a high-level output current of -2.6mA and a low-level output current of 24mA. Propagation delays from D to Q range from 2ns to 13ns, while LE to Q delays range from 7ns to 26ns under standard load conditions.

Feature Summary

• Features 3-state buffer-type outputs designed to drive highly capacitive or relatively low-impedance loads directly without interface components.
• Includes power-up high-impedance state capability to permit live insertion onto bus lines safely.
• Utilizes a bus-structured pinout configuration suitable for implementing buffer registers, I/O ports, and bidirectional bus drivers.

Applications

• Implementing buffer registers in digital systems
• Creating bidirectional bus drivers for address/data paths
• Serving as working registers in microprocessor interfaces

Procurement Notes

Verify the component status carefully as this specific NT package variant may be discontinued. Confirm that the required ALS logic family performance meets system timing requirements. Ensure the 24-pin DIP footprint matches the target PCB design. Check for RoHS compliance if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a 10-bit transparent latch with high-drive 3-state outputs is required. It is suitable for applications needing extra bus-driving latches for wider address paths. Consider the SN74AS841A if higher speed and drive current are needed, or the SN74ALS842 if inverting inputs are preferred.

Part Context

This part belongs to the Texas Instruments 74ALS series of advanced low-power Schottky logic devices. It is functionally related to the SN74ALS842, which offers inverting inputs, and the SN74AS841A, which provides enhanced speed and drive capabilities. All share the same 10-bit bus-interface architecture and 3-state output functionality.

Replacement Considerations

The SN74ALS841DW is listed as a similar alternative from Texas Instruments. Verify pin compatibility and electrical specifications before substitution. No other direct substitutes are confirmed in the provided documentation.