CD74AC563E

Product Overview

• Category: Integrated Circuit
• Use: Digital Logic IC
• Characteristics: Octal D-Type Transparent Latch with 3-State Outputs
• Package: 20-pin Plastic Dual In-Line Package (PDIP)
• Essence: The CD74AC563E is a high-speed, low-power octal latch designed for general-purpose storage applications in digital systems.
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier.

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Current: -24mA
• Low-Level Output Current: 24mA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The CD74AC563E has a total of 20 pins:

1. GND (Ground)
2. D0 (Data Input 0)
3. D1 (Data Input 1)
4. D2 (Data Input 2)
5. D3 (Data Input 3)
6. D4 (Data Input 4)
7. D5 (Data Input 5)
8. D6 (Data Input 6)
9. D7 (Data Input 7)
10. LE (Latch Enable)
11. CLK (Clock Input)
12. Q0 (Output 0)
13. Q1 (Output 1)
14. Q2 (Output 2)
15. Q3 (Output 3)
16. Q4 (Output 4)
17. Q5 (Output 5)
18. Q6 (Output 6)
19. Q7 (Output 7)
20. VCC (Supply Voltage)

Functional Features

• Octal D-Type Transparent Latch: The CD74AC563E can store eight bits of data using transparent latch functionality.
• 3-State Outputs: The outputs (Q0-Q7) can be put into a high-impedance state, allowing multiple devices to share the same bus without interference.
• Latch Enable (LE) and Clock Input (CLK): The latch can be enabled or disabled using the LE input. Data is latched on the rising edge of the CLK signal.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - 3-state outputs for bus sharing - Wide supply voltage range

Disadvantages: - Limited output current capacity - Not suitable for high-voltage applications

Working Principles

The CD74AC563E operates by storing data in its internal latch when the latch enable (LE) input is active. The stored data is then available at the outputs (Q0-Q7). The latch is transparent, meaning that the outputs reflect the inputs as long as the latch enable is active. The clock input (CLK) is used to control when the data is latched into the internal storage.

Detailed Application Field Plans

The CD74AC563E is commonly used in various digital systems where data storage and retrieval are required. Some application fields include:

1. Microcontrollers: Used for storing and retrieving data from external devices or memory modules.
2. Communication Systems: Used for buffering and synchronizing data between different components.
3. Industrial Automation: Used for controlling and monitoring processes by storing and updating status information.

Detailed and Complete Alternative Models

1. SN74AC563: Similar octal latch with 3-state outputs, offered by Texas Instruments.
2. MC74AC563: Octal transparent latch with 3-state outputs, manufactured by ON Semiconductor.
3. CD74HC563E: Octal D-Type latch with 3-state outputs, available from Texas Instruments.

(Note: The list of alternative models is not exhaustive and may vary based on availability and specific requirements.)

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