CD74HC573E

Latches Overview

The CD74HC573E is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the HC logic series. It features eight independent D-type latches with three-state outputs, housed in a 20-pin PDIP package. The device operates within a supply voltage range of 2 V to 6 V and supports CMOS and LV TTL input types. Key electrical parameters include a propagation delay of 165 ns, a high-level output current of -7.8 mA, and a low-level output current of 7.8 mA. It functions as a non-inverting buffer with differential output capabilities.

Latches Feature Summary

• Octal transparent D-type latch architecture providing eight independent storage elements
• Three-state outputs enabling direct bus-driven connections without external buffers
• High-speed CMOS technology ensuring compatibility with standard logic families
• Wide operating voltage range supporting diverse power supply environments

Latches Applications

• Bus-oriented memory mapping applications
• Register files for data storage
• Temporary storage of offset values in communication systems
• Parallel-to-serial conversion circuits

Latches Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure authenticity. Confirm that the component matches the specified PDIP-20 package and HC logic family characteristics. Check for RoHS compliance status if required by project specifications. Ensure the datasheet revision aligns with current manufacturing standards before finalizing procurement decisions.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required for bus interfacing. The HC series offers high noise immunity and wide voltage operation compared to older logic families. Consider the PDIP-20 through-hole package for prototyping or applications requiring mechanical robustness. Verify that the 165 ns propagation delay meets the timing requirements of the target system design.

Latches Part Context

The CD74HC573E is part of the broader CD74HC573 family of octal transparent D-type latches. It serves as a high-speed CMOS logic solution for digital circuit designs requiring parallel data storage and bus driving capabilities. The 'E' suffix typically denotes the PDIP-20 package variant, distinguishing it from surface-mount options like the DB or DG packages within the same logical function family.

Latches Replacement Considerations

Compatible substitutes include other octal transparent D-type latches with three-state outputs from the 74HC series. Verify pinout compatibility and electrical specifications such as supply voltage and output current before substitution. Alternative packages like SOIC or TSSOP may require adapter considerations if form factor changes are acceptable.