CY74FCT646CTQCT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Bus Transceiver
• Characteristics: High-speed, low-power, bidirectional data transfer
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Transfers data between two buses with different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Data Transfer Rate: Up to 200MHz
• Propagation Delay: 3.5ns (Max)
• Output Drive: ±24mA

Pin Configuration

The CY74FCT646CTQCT has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) A
2. I/O0A (Bidirectional Data Bus) A
3. I/O1A (Bidirectional Data Bus) A
4. I/O2A (Bidirectional Data Bus) A
5. I/O3A (Bidirectional Data Bus) A
6. GND (Ground)
7. I/O4A (Bidirectional Data Bus) A
8. I/O5A (Bidirectional Data Bus) A
9. I/O6A (Bidirectional Data Bus) A
10. I/O7A (Bidirectional Data Bus) A
11. VCC (Supply Voltage)
12. I/O7B (Bidirectional Data Bus) B
13. I/O6B (Bidirectional Data Bus) B
14. I/O5B (Bidirectional Data Bus) B
15. I/O4B (Bidirectional Data Bus) B
16. GND (Ground)
17. I/O3B (Bidirectional Data Bus) B
18. I/O2B (Bidirectional Data Bus) B
19. I/O1B (Bidirectional Data Bus) B
20. I/O0B (Bidirectional Data Bus) B

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• Output enable control for tristate operation
• Non-inverting outputs for direct compatibility with various logic families
• High-speed operation suitable for high-performance systems
• Low power consumption for energy-efficient applications

Advantages and Disadvantages

Advantages: - Enables seamless communication between buses with different voltage levels - Supports high-speed data transfer up to 200MHz - Low power consumption helps in reducing overall system energy usage

Disadvantages: - Limited to 8-bit bidirectional data transfer - Requires careful consideration of voltage level compatibility between buses

Working Principles

The CY74FCT646CTQCT is a bus transceiver IC that facilitates bidirectional data transfer between two buses operating at different voltage levels. It utilizes non-inverting outputs, allowing direct compatibility with various logic families. The output enable control enables tristate operation, providing flexibility in controlling the direction of data flow.

When the output enable (OE) pin is active, the IC allows bidirectional data transfer between the A and B buses. When the OE pin is inactive, the outputs are tristated, isolating the A and B buses from each other.

The IC operates at high speeds of up to 200MHz, making it suitable for use in high-performance systems. Additionally, its low power consumption makes it ideal for energy-efficient applications.

Detailed Application Field Plans

The CY74FCT646CTQCT finds application in various fields, including:

1. Computer Systems: Facilitating data transfer between different voltage level buses within a computer system.
2. Communication Equipment: Enabling seamless communication between buses with varying voltage levels in networking devices.
3. Industrial Automation: Supporting bidirectional data transfer in industrial control systems.
4. Automotive Electronics: Facilitating data exchange between different voltage level buses in automotive applications.

Detailed and Complete Alternative Models

1. SN74FCT646TQCT
2. MC74FCT646N
3. CD74FCT646M96
4. 74FCT646TSO

These alternative models offer similar functionality and can be used as replacements for the CY74FCT646CTQCT in various applications.

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