74HCT563D,652

Product Overview

• Category: Integrated Circuit
• Use: Digital Logic IC
• Characteristics: Octal transparent latch with 3-state outputs
• Package: SOIC-20
• Essence: Latch with output enable functionality
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: 4.4V
• Low-Level Output Voltage: 0.1V
• Maximum Operating Frequency: 25 MHz
• Propagation Delay Time: 10 ns
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74HCT563D,652 has a total of 20 pins. The pin configuration is as follows:

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. OE (Output Enable)
11. LE (Latch Enable)
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

The 74HCT563D,652 is an octal transparent latch with 3-state outputs. It features a latch enable (LE) input and an output enable (OE) input. When the LE input is high, the latch is transparent, allowing the data inputs to appear at the outputs. When the LE input is low, the latch is latched, holding the last data input values at the outputs. The OE input controls the 3-state outputs, enabling or disabling them.

Advantages and Disadvantages

Advantages: - Octal latch with 3-state outputs provides flexibility in digital logic applications. - High operating frequency allows for fast data processing. - Wide supply voltage range ensures compatibility with various systems. - Low propagation delay time enhances overall system performance.

Disadvantages: - Limited number of outputs may restrict certain applications requiring more outputs. - Requires external control signals (LE and OE) for proper operation.

Working Principles

The 74HCT563D,652 operates based on the principles of transparent latching. When the latch enable (LE) input is high, the latch becomes transparent, allowing the data inputs to pass through to the outputs. This enables real-time data transfer. When the LE input is low, the latch becomes latched, holding the last data input values at the outputs. The output enable (OE) input controls the 3-state outputs, enabling or disabling them as needed.

Detailed Application Field Plans

The 74HCT563D,652 can be used in various applications, including but not limited to:

1. Data storage and retrieval systems
2. Address decoding circuits
3. Bus interface units
4. Memory modules
5. Digital communication systems

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the 74HCT563D,652 include:

1. 74HC563: Octal transparent latch with 3-state outputs, compatible with 5V systems.
2. SN74LS563: Octal transparent latch with 3-state outputs, compatible with TTL logic levels.
3. CD74HCT563: High-speed CMOS octal transparent latch with 3-state outputs.

These alternative models can be considered based on specific system requirements and compatibility needs.

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