NXP 74AHCT373PW Octal Transparent D-Type Latch

The NXP 74AHCT373PW is a high-speed Si-gate CMOS device that belongs to the 74AHC/AHCT family. This integrated circuit is designed to provide the functionality of an octal transparent D-type latch, which is essential for a wide range of digital applications. The device features eight latches with three-state outputs for bus-oriented applications.

Each latch within the 74AHCT373PW has a dedicated D-type input and output, along with an enable control (OE) and a latch enable (LE) input. The transparent nature of the latches means that when the latch enable (LE) input is high, the Q outputs follow the data (D) inputs. However, when LE is taken low, the data that was present at the D inputs at the time the transition occurred is stored in the latch. Output enable (OE) is an additional control input that can be used to place the eight outputs in either a normal logic state or a high-impedance state. When OE is high, the outputs are in a high-impedance state, effectively isolating the latches from the bus.

The 74AHCT373PW operates at a voltage range of 4.5V to 5.5V, making it compatible with TTL levels, and it is characterized for operation from -40°C to +125°C. This makes it suitable for interfacing with microprocessors and other logic systems that operate at TTL voltage levels. The device is offered in a TSSOP20 package, which is optimized for reduced space and weight in applications where PCB real estate is at a premium.

Key features of the NXP 74AHCT373PW include:

• Octal D-type transparent latch with 3-state outputs
• Wide operating voltage range of 4.5V to 5.5V
• High noise immunity
• Low power consumption
• Complies with JEDEC standard JESD7A
• Input levels are compatible with TTL input levels
• ESD protection: HBM JESD22-A114F exceeds 2000 V, MM JESD22-A115-A exceeds 200 V
• Multiple package options, including TSSOP20

The NXP 74AHCT373PW is ideal for applications that require temporary storage of data and smooth data transfer between two points within a digital system. Its robust design and compatibility with industry-standard protocols make it a reliable choice for designers and engineers working on a variety of digital projects.