74HCT573BQ,115

Latches Overview

The Nexperia 74HCT573BQ,115 is an octal D-type transparent latch with 3-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features TTL input levels and includes latch enable (LE) and output enable (OE) inputs. Propagation delay from data input to output is typically 20 ns at 4.5 V. Power dissipation capacitance is specified at 26 pF.

Latches Feature Summary

• Octal D-type transparent latch architecture with 3-state non-inverting outputs
• TTL-compatible input switching levels for direct interfacing with microprocessors
• Inputs and outputs positioned on opposite sides of the package to facilitate bus-oriented applications

Latches Applications

• Input or output port expansion for microprocessors and microcomputers
• Bus-oriented applications requiring common 3-state output enable control
• Register storage in digital logic circuits

Latches Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product data sheet to confirm package type and temperature range specifications. Ensure that the DHVQFN20 package variant matches the intended PCB footprint requirements. Confirm compliance with relevant JEDEC standards for ESD protection and latch-up performance prior to final design integration.

Latches Selection Notes

Select this component when TTL logic compatibility is required for an octal latch application. The 74HCT573BQ variant provides a leadless thermal enhanced quad flat package suitable for space-constrained designs. Consider the propagation delay and power dissipation characteristics relative to system timing constraints and thermal management capabilities during the selection process.

Latches Part Context

This part belongs to the 74HCT series of high-speed CMOS logic devices manufactured by Nexperia. The 74HCT573 family specifically provides octal latching functionality with 3-state outputs. The BQ designation indicates the DHVQFN20 package configuration, which offers a compact form factor compared to traditional small outline packages while maintaining thermal performance.

Latches Replacement Considerations

The 74HCT573PW serves as a pin-compatible alternative utilizing a TSSOP20 package. Designers must verify package dimensions and thermal characteristics when substituting between the DHVQFN20 and TSSOP20 variants.