74HC573D,653

Latches Overview

The Nexperia 74HC573D,653 is an octal D-type transparent latch with 3-state outputs housed in a SOIC-20 package. It features independent D inputs for each latch and shared Latch Enable (LE) and Output Enable (OE) controls. The device operates within a supply voltage range of 2.0 V to 6.0 V. Static characteristics include an input leakage current of ±1.0 μA at -40 °C to +125 °C and a maximum supply current of 160 μA under the same conditions. Dynamic performance specifies a propagation delay from data input to output of up to 38 ns at 6.0 V.

Latches Feature Summary

• Transparent operation allows data to pass directly to outputs when LE is HIGH, while LOW levels store information based on setup time preceding the transition.
• Outputs enter a high-impedance OFF state when OE is HIGH, isolating the latches without affecting their internal stored state.
• Inputs feature clamp diodes enabling interface to voltages exceeding VCC using current limiting resistors.

Latches Applications

• Microprocessor and microcomputer input/output ports
• Bus-oriented applications requiring 3-state non-inverting outputs

Latches Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm temperature range specifications align with operational requirements. Check for RoHS compliance status relevant to the manufacturing region. Ensure ESD protection ratings meet system safety standards. Validate pinout compatibility with existing PCB footprints.

Latches Selection Notes

Select this component for designs requiring parallel data storage with bus isolation capabilities. Consider the wide supply voltage range for flexible power domain integration. Evaluate the CMOS low power dissipation benefits for battery-operated systems. Assess the noise immunity characteristics for noisy industrial environments.

Latches Part Context

This part belongs to the 74HC series of logic integrated circuits manufactured by Nexperia. It is functionally compatible with other octal latches in the industry standard family. The device utilizes complementary metal-oxide-semiconductor technology for efficient power consumption.

Latches Replacement Considerations

The 74HCT573D,653 serves as a TTL-compatible alternative within the same package. Other manufacturers produce equivalent octal transparent latches with 3-state outputs. Verify pin compatibility and electrical parameters before substituting.