CD74HC573EG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data storage and retrieval
• Characteristics: High-speed, octal transparent latch with 3-state outputs
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Latch with output enable functionality
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: 4.4V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 80 MHz
• Propagation Delay Time: 9 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HC573EG4 has a total of 20 pins, each serving a specific function:

1. OE (Output Enable) - Active low output enable input
2. D0-D7 (Data Inputs) - Eight data inputs
3. GND (Ground) - Ground reference
4. Q0-Q7 (Outputs) - Eight buffered outputs
5. VCC (Supply Voltage) - Positive supply voltage
6. LE (Latch Enable) - Active high latch enable input
7. CP (Clock Pulse) - Clock input for latch operation
8. MR (Master Reset) - Active low master reset input

Functional Features

• Octal transparent latch with 3-state outputs
• Latch enable and output enable control for flexible data storage and retrieval
• High-speed operation suitable for time-critical applications
• Buffered outputs for improved signal integrity
• Wide operating voltage range for compatibility with various systems

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data handling - Flexible control inputs enable versatile usage scenarios - Buffered outputs enhance signal quality and drive capability - Wide operating voltage range ensures compatibility with different systems

Disadvantages: - Limited number of latch outputs (8 in total) - Requires external clock signal for proper operation - Sensitive to electrostatic discharge (ESD) and requires proper handling

Working Principles

The CD74HC573EG4 is an octal transparent latch with 3-state outputs. It stores data on its eight inputs (D0-D7) when the latch enable (LE) input is high. The stored data can be retrieved from the buffered outputs (Q0-Q7) when the output enable (OE) input is low.

The latch operates based on the clock pulse (CP) input. When the CP input transitions from low to high, the data present at the inputs is latched and stored. The stored data remains unchanged until a new clock pulse triggers another latch operation.

The master reset (MR) input allows for clearing the latch and setting all outputs to a known state when activated. This feature is useful during system initialization or error recovery.

Detailed Application Field Plans

The CD74HC573EG4 finds applications in various fields where data storage and retrieval are required. Some specific application areas include:

1. Microcontrollers and microprocessors: Used for temporary storage of data during processing.
2. Communication systems: Facilitates buffering and synchronization of data between different components.
3. Industrial automation: Enables control and monitoring of devices through data storage and retrieval.
4. Automotive electronics: Supports data transfer and storage in automotive control systems.
5. Consumer electronics: Used in devices like gaming consoles, set-top boxes, and digital TVs for data handling.

Detailed and Complete Alternative Models

1. SN74HC573N: Similar octal transparent latch with 3-state outputs, available in DIP (Dual Inline Package) format.
2. CD74HCT573E: Octal transparent latch with 3-state outputs, compatible with TTL (Transistor-Transistor Logic) inputs.
3. MC74HC573AN: High-speed octal latch with 3-state outputs, offered in DIP package.

These alternative models provide similar functionality and can be used as replacements for the CD74HC573EG4 depending on specific requirements and availability.

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