CY74FCT646TQCT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data bus transceiver
• Characteristics: High-speed, low-power, bidirectional data transfer
• Package: TQFP (Thin Quad Flat Package)
• Essence: Transfers data between two buses with different voltage levels
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Transfer Rate: Up to 200MHz
• Number of Channels: 8
• Input/Output Compatibility: TTL/CMOS

Pin Configuration

The CY74FCT646TQCT has a total of 24 pins. The pin configuration is as follows:

1. OE (Output Enable) 1
2. A1 (Data Bus A) 1
3. A2 (Data Bus A) 2
4. A3 (Data Bus A) 3
5. A4 (Data Bus A) 4
6. A5 (Data Bus A) 5
7. A6 (Data Bus A) 6
8. A7 (Data Bus A) 7
9. GND (Ground)
10. B7 (Data Bus B) 7
11. B6 (Data Bus B) 6
12. B5 (Data Bus B) 5
13. B4 (Data Bus B) 4
14. B3 (Data Bus B) 3
15. B2 (Data Bus B) 2
16. B1 (Data Bus B) 1
17. VCC (Power Supply)
18. DIR (Direction Control)
19. OE (Output Enable) 2
20. B8 (Data Bus B) 8
21. A8 (Data Bus A) 8
22. A9 (Data Bus A) 9
23. A10 (Data Bus A) 10
24. B9 (Data Bus B) 9

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• High-speed operation, suitable for applications requiring fast data transfer
• Low power consumption, ideal for battery-powered devices
• Output enable control for flexible data flow management
• TTL/CMOS compatible inputs and outputs for easy integration into existing systems

Advantages and Disadvantages

Advantages

• Efficient and reliable data transfer between buses with different voltage levels
• High-speed operation allows for quick data exchange
• Low power consumption extends battery life in portable devices
• Flexible output enable control enables efficient data flow management
• Compatibility with TTL/CMOS ensures easy integration into various systems

Disadvantages

• Limited number of channels (8) may not be sufficient for certain applications requiring more data lines
• Operating temperature range (-40°C to +85°C) may not be suitable for extreme environments

Working Principles

The CY74FCT646TQCT is designed to facilitate bidirectional data transfer between two buses operating at different voltage levels. It utilizes a direction control pin (DIR) to determine the data flow direction. When DIR is set to logic high, data flows from Bus A to Bus B, and when DIR is set to logic low, data flows from Bus B to Bus A.

The output enable pins (OE1 and OE2) allow for selective enabling or disabling of the data outputs. When either OE1 or OE2 is set to logic high, the respective bus's outputs are disabled, preventing data transfer. When both OE1 and OE2 are set to logic low, the outputs are enabled, allowing bidirectional data transfer.

The CY74FCT646TQCT ensures high-speed operation with a data transfer rate of up to 200MHz. It is designed to be compatible with TTL/CMOS logic levels, making it easy to integrate into existing systems.

Detailed Application Field Plans

The CY74FCT646TQCT finds applications in various fields where bidirectional data transfer between buses with different voltage levels is required. Some potential application areas include:

1. Communication Systems: Facilitating data exchange between different communication protocols or interfaces.
2. Embedded Systems: Enabling communication between microcontrollers operating at different voltage levels.
3. Industrial Automation: Transferring data between control systems and peripheral devices with varying voltage requirements.
4. Automotive Electronics: Supporting data transfer between different automotive subsystems with distinct voltage levels.
5. Consumer Electronics: Integrating data buses in devices such as smartphones, tablets, and gaming consoles.

Alternative Models

• SN74LVTH646PWR
• MC74VHCT646ADTR2G