CY74FCT2646CTQCT

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Signal Switching and Level Shifting
• Characteristics: High-speed, Low-power, Bidirectional
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: A versatile signal switch that allows bidirectional level shifting between two voltage domains.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 200MHz
• Propagation Delay: 2.5ns (typical)
• Input Capacitance: 3pF (typical)
• Output Capacitance: 6pF (typical)

Detailed Pin Configuration

1. OE (Output Enable)
2. A0 (Input/Output A0)
3. A1 (Input/Output A1)
4. A2 (Input/Output A2)
5. A3 (Input/Output A3)
6. A4 (Input/Output A4)
7. GND (Ground)
8. B4 (Input/Output B4)
9. B3 (Input/Output B3)
10. B2 (Input/Output B2)
11. B1 (Input/Output B1)
12. B0 (Input/Output B0)
13. VCC (Supply Voltage)
14. DIR (Direction Control)
15. OE (Output Enable)
16. B5 (Input/Output B5)
17. B6 (Input/Output B6)
18. B7 (Input/Output B7)
19. A7 (Input/Output A7)
20. A6 (Input/Output A6)

Functional Features

• Bidirectional level shifting between two voltage domains.
• High-speed operation with a maximum frequency of 200MHz.
• Low-power consumption.
• Output enable and direction control for flexible signal routing.

Advantages

• Versatile signal switching capability.
• Allows interfacing between different voltage levels.
• Fast propagation delay for high-speed applications.
• Low power consumption for energy-efficient designs.
• Compact package size for space-constrained applications.

Disadvantages

• Limited number of input/output channels (8 channels).
• Requires careful consideration of voltage compatibility between domains.
• May require additional external components for specific applications.

Working Principles

The CY74FCT2646CTQCT is designed to facilitate bidirectional level shifting between two voltage domains. It utilizes a combination of CMOS and BiCMOS technologies to achieve high-speed operation while maintaining low power consumption. The device features a direction control pin (DIR) that determines the flow of data between the two domains. Additionally, an output enable pin (OE) allows for enabling or disabling the output buffers. By controlling these pins, the user can route signals in either direction and interface between different voltage levels.

Detailed Application Field Plans

1. Logic Level Translation: The CY74FCT2646CTQCT can be used to translate logic levels between different voltage domains, allowing for seamless communication between incompatible systems.
2. Bus Switching: It can be employed as a bus switch to connect multiple devices to a common bus, enabling efficient data transfer and sharing.
3. Voltage Level Conversion: The IC enables the conversion of signals from one voltage level to another, facilitating compatibility between different integrated circuits.
4. Signal Routing: With its bidirectional capabilities, the device can be utilized for flexible signal routing in complex electronic systems.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Octal Bus Transceiver with Voltage-Level Shifting
2. CD40109B: Quad Level-Shifter for TTL-to-CMOS or CMOS-to-CMOS Operation
3. 74HC4050: Hex Non-Inverting Buffer/Converter

These alternative models offer similar functionality and can be considered as alternatives to the CY74FCT2646CTQCT, depending on specific requirements and design constraints.

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