SN74HC373PWTE4

Product Overview

• Category: Integrated Circuit
• Use: Octal Transparent D-Type Latches with 3-State Outputs
• Characteristics:
  • High-Speed CMOS Logic
  • Eight Latches in a Single Package
  • 3-State Outputs for Bus-Oriented Applications
  • Output Drive Capability: 15 LSTTL Loads
  • Low Power Consumption
  • Typical Propagation Delay: 13 ns
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The SN74HC373PWTE4 is an integrated circuit that contains eight transparent D-type latches with 3-state outputs. It is designed for high-speed CMOS logic applications and is commonly used in bus-oriented systems.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 6 V
• Input Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±6 mA
• Input Current: ±1 mA
• Maximum Propagation Delay: 25 ns
• Maximum Quiescent Current: 8 μA

Pin Configuration

The SN74HC373PWTE4 has a total of 20 pins. The pin configuration is as follows:

__ __ 1 |*1 \/ 20*| VCC 2 | 2 19 | OE 3 | 3 18 | I7 4 | 4 17 | I6 5 | 5 16 | I5 6 | 6 15 | I4 7 | 7 14 | I3 8 | 8 13 | I2 9 | 9 12 | I1 10 |10 11 | I0 --------

Functional Features

• Octal transparent D-type latches with 3-state outputs
• Latch Enable (LE) and Output Enable (OE) inputs control the operation of the latches
• When LE is high, the latch is transparent, allowing data to flow from the inputs to the outputs
• When OE is low, the outputs are in a high-impedance state, allowing multiple devices to share a common bus

Advantages and Disadvantages

Advantages: - High-speed CMOS logic for fast operation - Eight latches in a single package for space-saving integration - 3-state outputs enable bus-oriented applications - Low power consumption for energy efficiency

Disadvantages: - Maximum propagation delay of 25 ns may not be suitable for ultra-high-speed applications - Limited output drive capability compared to some other models

Working Principles

The SN74HC373PWTE4 operates by using the latch enable (LE) and output enable (OE) inputs to control the flow of data. When LE is high, the latch is transparent, allowing the data on the input pins to pass through to the output pins. When OE is low, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The SN74HC373PWTE4 is commonly used in various applications, including: - Data storage systems - Address decoding circuits - Bus interface units - Memory modules - Microprocessor-based systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the SN74HC373PWTE4 include: - SN74HC573PWTE4: Octal D-Type Latches with 3-State Outputs - SN74HC374PWTE4: Octal Edge-Triggered D-Type Flip-Flops with 3-State Outputs - SN74HC595PWTE4: 8-Bit Shift Registers with 3-State Outputs

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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