74LCX16373TTR

Latches Overview

The 74LCX16373TTR is a low voltage CMOS 16-bit D-type latch with three-state outputs manufactured by STMicroelectronics. It operates within a supply voltage range of 2.0V to 3.6V, supporting data retention at 1.5V. The device features 5V tolerant inputs and outputs, ensuring compatibility with mixed-voltage systems. Key electrical parameters include a maximum propagation delay of 5.4 ns at VCC = 3V, symmetrical output impedance with minimum drive currents of ±24 mA at 3V, and a quiescent supply current of 20 µA. It provides power-down protection on inputs and outputs, exceeding 500mA latch-up performance per JESD 17 standards.

Latches Feature Summary

• Features 5V tolerant inputs and outputs for interfacing with 5V signal environments.
• Provides high-speed operation with balanced propagation delays and symmetrical output impedance.
• Includes power-down protection on inputs and outputs to prevent excessive current draw during power-off states.

Latches Applications

• Low power and high speed 3.3V applications
• PCI bus level interfaces
• Mixed 3.3V and 5V system environments

Latches Procurement Notes

Verify component status as the datasheet identifies this part as obsolete. Confirm availability through authorized distributors or secondary markets. Ensure the TSSOP-48 package matches your PCB footprint requirements. Check for moisture sensitivity levels if storage conditions have been uncontrolled. Validate that the specific ordering suffix aligns with your reel or tube packaging needs.

Latches Selection Notes

Select this component for designs requiring byte-controlled latching in low voltage logic families. It serves as a functional replacement for older 74 series 16373 devices while offering lower power consumption. Consider its 5V tolerance when connecting to legacy 5V peripherals. Evaluate the 5.4 ns propagation delay against your system timing constraints to ensure signal integrity is maintained across the bus.

Latches Part Context

This device belongs to the 74LCX family of low voltage CMOS logic components. It is functionally compatible with the standard 74LS and 74AC series but optimized for lower voltage operation. The 16-bit architecture allows for parallel data handling, making it suitable for wide data buses. The TTR suffix indicates the TSSOP-48 tape and reel packaging format.

Latches Replacement Considerations

The datasheet notes pin and function compatibility with the 74 series 16373. Designers migrating from older technologies should verify voltage level shifting requirements. No direct cross-manufacturer equivalents are explicitly listed in the provided documentation.