74ACT16841DLG4

Latches Overview

The SN74ACT16841DLG4 is a 20-bit bus interface D-type latch manufactured by Texas Instruments. It features two independent 10-bit latches with three-state outputs, designed for high-speed data storage and transfer in parallel architectures. The device operates within a supply voltage range of 4.5V to 5.5V and supports industrial temperature ranges from -40°C to +85°C. Key electrical characteristics include a maximum propagation delay of 7.7ns at 5V, quiescent current of 8µA, and output drive capabilities of 24mA high and 32mA low. It is housed in a 56-pin SSOP package.

Latches Feature Summary

• Contains two independent 10-bit transparent D-type latches for efficient data handling
• Features three-state outputs to facilitate direct connection to system buses
• Provides high-speed performance with low propagation delay for critical timing applications

Latches Applications

• Parallel data storage in industrial control systems
• Bus interface circuits requiring high-speed data latching
• Memory buffer stages in digital communication equipment

Latches Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm RoHS compliance and lead-free status. Confirm the package type matches the design requirements, as variations exist between tube and reel packaging. Check for any product change notices or end-of-life announcements that may affect long-term availability. Ensure the operating temperature range meets the environmental specifications of the target application.

Latches Selection Notes

Select this component when a 20-bit wide data path requires simultaneous latching with bus isolation. Compare propagation delays and output drive currents against system clock speeds to ensure timing margins are met. Consider the pin count and package dimensions relative to the PCB layout constraints. Evaluate power consumption requirements given the quiescent current specifications under varying load conditions.

Latches Part Context

This part belongs to the 74ACT logic family, known for CMOS compatibility with TTL input levels. It serves as a high-performance alternative to older bipolar families, offering lower power consumption while maintaining fast switching speeds. The 16-bit architecture variant is common in bus-oriented designs, providing a standardized solution for parallel data interfacing in mixed-signal environments.

Latches Replacement Considerations

Direct substitutes include the SN74ACT16841DR (reel version) and other 74ACT16841 variants with compatible pinouts. Verify functional equivalence regarding latch transparency and three-state control logic before substitution.