ON Semiconductor MC74LCX373DTR2 Octal Transparent Latch

The ON Semiconductor MC74LCX373DTR2 is a high-performance, octal transparent latch integrated circuit designed for use in applications requiring high-speed and low-power consumption. This device is part of the LCX family, which is fabricated with an advanced CMOS technology to achieve superior switching performance with high noise immunity and low power consumption.

With its 3.3V power supply, the MC74LCX373DTR2 is optimized for 3.3V to 5V VCC operation, making it suitable for interfacing with 5V systems and ensuring a smooth transition for both high and low logic level inputs. This feature allows for mixed-voltage system integration, which is essential in modern electronic devices where various components may operate at different voltage levels.

The MC74LCX373DTR2 offers an octal D-type latch with three-state outputs. The device comes in a TSSOP-20 package, providing a compact footprint for space-constrained applications. Each latch has a separate D input and O output and can be controlled by the common Latch Enable (LE) and Output Enable (OE) inputs. When LE is high, the flip-flops appear transparent to the data, and when it is low, the data that meets the setup time is latched. Output control is provided by the OE input, which, when high, places the outputs in a high impedance state.

This latch is characterized for operation from -40°C to +85°C, ensuring reliable performance across a wide range of environmental conditions. It is designed with an input hysteresis circuitry that allows for slower input rise and fall times, which significantly reduces the possibility of noise generation on the input paths.

Key features of the MC74LCX373DTR2 include:

• High-speed operation: The device can handle data rates typically up to 240 Mbps.
• Low power consumption: Ideal for battery-operated and power-sensitive applications.
• 5V tolerant inputs: Facilitates interfacing with 5V logic levels without damage.
• Multiple power and ground pins: Minimize noise to maintain signal integrity.
• Lead-free and RoHS compliant: Adheres to environmental regulations for hazardous substances.

Overall, the ON Semiconductor MC74LCX373DTR2 is an excellent choice for those needing a reliable, high-speed, and low-power octal latch for their digital systems.