SN74HC373PWRE4

The SN74HC373PWRE4 is a high-speed CMOS octal transparent latch designed by Texas Instruments. It is part of the 74HC family of logic devices, which are known for their high-speed performance and low power consumption. Here’s a detailed description of its features and specifications:

General Description:

The SN74HC373 is an octal latch that can store 8 bits of data. It is designed to be used in applications where data needs to be temporarily held before being processed or transferred. The device features a transparent latch mode, meaning that when the latch enable (LE) input is high, the output follows the input. When LE is low, the output holds the last state of the input.

Key Features:

• Number of Bits: 8 (octal)
• Latch Type: Transparent latch
• Input/Output Configuration: 8 data inputs (D0-D7) and 8 outputs (Q0-Q7)
• Control Inputs:
  • Latch Enable (LE): Controls the latching operation.
  • Output Enable (OE): When low, enables the outputs; when high, the outputs are in a high-impedance state.
• Supply Voltage: Operates from a single supply voltage ranging from 2V to 6V, making it compatible with various logic levels.
• High-Speed Operation: Typical propagation delay is around 15 ns at 5V, allowing for fast data processing.
• Low Power Consumption: Consumes minimal power, making it suitable for battery-operated devices.
• Wide Operating Temperature Range: Typically from -40°C to +125°C, allowing for use in various environmental conditions.

Pin Configuration:

The SN74HC373 is available in a 20-pin TSSOP (Thin Shrink Small Outline Package) format, which is compact and suitable for surface-mount applications. The pin configuration includes:

• Data Inputs (D0-D7): Pins 1-8 for data input.
• Latch Enable (LE): Pin 9, controls the latching operation.
• Output Enable (OE): Pin 10, controls the output state.
• Outputs (Q0-Q7): Pins 11-18 for output.
• Ground (GND): Pin 20, connected to the ground.
• VCC: Pin 19, connected to the supply voltage.

Applications:

The SN74HC373 is widely used in various digital applications, including:

• Data storage and transfer in microcontroller and microprocessor systems.
• Temporary data holding in communication interfaces.
• Buffering data in digital signal processing.
• Implementing state machines and control logic in embedded systems.

Conclusion:

The SN74HC373PWRE4 from Texas Instruments is a versatile and efficient octal latch that provides high-speed data handling capabilities with low power consumption. Its transparent latch feature, combined with a wide operating voltage and temperature range, makes it an ideal choice for a variety of digital applications in modern electronic designs.