74ACT16841DL

Latches Overview

The Texas Instruments 74ACT16841DL is a 20-bit bus-interface D-type latch featuring three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes the ACT logic series for high-speed performance. The device provides non-inverting data transmission with a typical propagation delay of 11 ns at 5 V. It is housed in a 56-pin SSOP package, suitable for surface-mount applications.

Latches Feature Summary

• Provides 20-bit parallel data latching capability with transparent operation when enabled.
• Features three-state outputs designed to drive bus lines and manage signal isolation.
• Utilizes advanced CMOS technology to ensure low power consumption and high noise immunity.

Latches Applications

• Bus interface buffering between processors and peripheral devices
• Parallel data storage in high-speed digital systems
• Isolation of input signals from output loads in bus architectures

Latches Procurement Notes

Verify the specific suffix against the manufacturer's current documentation, as the DL designation indicates a tube package which may differ from tape-and-reel variants like DLR. Confirm RoHS compliance status and lead times directly with authorized distributors or Texas Instruments, as availability for legacy packages can vary significantly across regions and timeframes.

Latches Selection Notes

Select this component when a wide 20-bit width is required for single-chip bus interfacing rather than multiple smaller latches. Ensure the system operates strictly within the 4.5 V to 5.5 V supply range to maintain timing specifications. Consider the 56-pin SSOP footprint constraints during PCB layout compared to alternative TSSOP or SOIC packages if space is limited.

Latches Part Context

This part belongs to the Texas Instruments 74ACT family, which offers higher speed and lower power consumption compared to standard 74LS logic. The 16841 variant specifically addresses the need for wide-data-path latching in microprocessor-based systems, serving as a bridge between high-speed internal buses and slower external peripherals.

Latches Replacement Considerations

Check for the 74ACT16841DLR variant, which shares identical electrical characteristics but uses a reel packaging format instead of tubes. Verify pinout compatibility before substituting with other 20-bit latches from different manufacturers.

Latches FAQ

What is the maximum operating voltage for the 74ACT16841DL?

The maximum operating supply voltage (VCC) is 5.5 V.

Does the 74ACT16841DL have inverted outputs?

No, the device features non-inverting outputs that follow the state of the data inputs when the latch is transparent.