NXP 74LVT162373DGG: A High-Performance 16-Bit Transparent Latch for Modern Bus Interface Applications

The NXP 74LVT162373DGG is a high-performance, 16-bit transparent D-type latch designed to handle the demanding requirements of contemporary digital systems. As a member of NXP's Low-Voltage BiCMOS Technology (LVT) family, this integrated circuit is engineered to provide an optimal balance of high speed and low power consumption, making it an ideal solution for buffering and data storage in high-density bus interface applications.

A key feature of this device is its 3-state outputs, which provide full control over the bus lines. Each of the 16 latches features a latch enable (LE) input and an output enable (OE) input. When LE is high, the Q outputs follow the data (D) inputs transparently. A high-to-low transition on LE latches the data, ensuring information is held stably. The OE input, when active low, allows the outputs to operate normally. When OE is high, the outputs are forced into a high-impedance state (Hi-Z), effectively disconnecting the latch from the bus. This 3-state capability is crucial for preventing bus contention in multi-master or shared bus architectures, such as those found in data communication systems, networking equipment, and advanced computing motherboards.

Another significant advantage is its 6V tolerant inputs and outputs. This feature enhances the device's robustness in mixed-voltage environments, allowing it to interface safely with 5V or other higher voltage logic components without the risk of damage. This tolerance protects against voltage spikes and ensures reliable operation, thereby improving the overall system's resilience and longevity.

Housed in a TSSOP-48 (DGG) package, the 74LVT162373DGG offers a compact footprint, which is essential for space-constrained PCB designs. Its operation is specified over a voltage range of 2.7V to 3.6V, aligning perfectly with standard 3.3V power supply systems. Despite its low-voltage operation, it offers robust drive capability, capable of sourcing/sinking up to 32 mA at the outputs.

ICGOOODFIND: The NXP 74LVT162373DGG stands out as a robust and versatile bus interface solution. Its combination of 16-bit wide operation, 3-state outputs for bus isolation, and 6V tolerance for mixed-voltage system compatibility makes it an exceptionally reliable choice for designers seeking to enhance data integrity and system reliability in advanced digital applications.

Keywords: 3-State Outputs, 6V Tolerant, Transparent Latch, Bus Interface, LVT Technology.