NXP 74LVC16373ADGG: 16-Bit Transparent D-Type Latch with 5 V Tolerant Inputs/Outputs and 6 V VCC

The NXP 74LVC16373ADGG is a high-performance, 16-bit transparent D-type latch designed for use in a wide array of digital systems where robust data buffering and temporary storage are essential. Fabricated with NXP's advanced low-voltage CMOS technology, this integrated circuit is engineered to operate with a 2.7 V to 3.6 V power supply (VCC), making it an ideal choice for bridging domains in mixed-voltage environments. A key feature of this device is its ability to tolerate input voltages and provide output voltages up to 5.5 V, even when the core supply voltage (VCC) is as low as 2.7 V. This 5 V tolerance is critical for interfacing with legacy higher-voltage logic families like 5 V TTL or CMOS without requiring additional level-shifting components, thereby simplifying board design and reducing the overall bill of materials.

Furthermore, the device supports a maximum VCC of 6.0 V, which provides an additional margin of safety against voltage spikes and enhances reliability in electrically noisy industrial or automotive applications. The 74LVC16373ADGG features two active-low latch enable (LE) inputs, each controlling eight transparent latches. When the LE input for a given byte is held high, the corresponding outputs (Qn) actively follow the data inputs (Dn). A high-to-low transition on the LE input latches and stores the data present at the inputs at that moment. The outputs are equipped with high-impedance 3-state buffers, controlled by a pair of active-low output enable (OE) pins. When OE is driven high, the outputs are forced into a high-impedance state, which is indispensable for preventing bus contention in multi-master or shared bus architectures, such as those found in microprocessors or memory systems.

The combination of a wide operating voltage range, high noise immunity, and substantial output drive capability (+/- 24 mA at VCC = 3.0 V) makes this latch exceptionally versatile. It is commonly deployed in applications ranging from data communication ports and network interfaces to industrial control systems and automotive electronics. Its TSSOP (Thin Shrink Small Outline Package) package offers a compact footprint, which is advantageous for space-constrained PCB designs.

ICGOOODFIND: The 74LVC16373ADGG from NXP stands out as a robust and flexible solution for modern digital design, offering critical 5 V tolerance, 3-state outputs, and a 6 V VCC maximum for enhanced system reliability and simplified interfacing.

Keywords: 5 V Tolerant, 3-State Output, 16-Bit Latch, Transparent Latch, Bus Interface.