STMicroelectronics 74VCX16373TTR Low Voltage 16-Bit D-Type Latch
The 74VCX16373TTR from STMicroelectronics is a high-performance, 16-bit D-type latch designed for use in low-voltage applications. This integrated circuit is part of the VCX family, which is characterized by low voltage operation and low noise levels, making it ideal for interfacing with high-speed microprocessors and microcontrollers in modern digital systems.
Constructed with advanced silicon-gate CMOS technology, the 74VCX16373TTR offers a robust latch function with the capability to store the state of 16 data inputs. The device operates at a nominal supply voltage of 3.3V, but it is also 5V tolerant on input to facilitate interfacing with 5V systems, thereby providing a high degree of flexibility for mixed-voltage applications.
The device features two separate sections, each with eight latches and their own individual latch-enable (LE) inputs. This allows for greater control and the ability to update certain bits while others remain unchanged. The outputs of the latches are non-inverting, providing a direct representation of the input data when the latches are enabled. Additionally, the outputs can be placed in a high-impedance state, which is particularly useful in bus-oriented systems where multiple devices may need to share the same data lines.
Key specifications of the 74VCX16373TTR include a wide operating voltage range of 1.2V to 3.6V, fast propagation delays, and low quiescent current consumption, which is beneficial in power-sensitive applications. The device also features balanced drive outputs, which contribute to reduced signal distortion and improved signal integrity.
This latch is packaged in a TSSOP48 (Thin Shrink Small Outline Package) form factor, making it suitable for space-constrained applications. The 74VCX16373TTR is also characterized for operation from -40°C to +85°C, ensuring reliable performance across a wide range of environmental conditions.
Whether used in computing, telecommunications, or consumer electronics, the 74VCX16373TTR provides designers with a dependable solution for data storage and signal buffering needs. Its compatibility with low-voltage logic levels and its ability to interface with higher voltage systems make it a versatile choice for modern digital designs.
