Encyclopedia Entry: 74FCT2646ATQCTG4

Product Overview

Category

The 74FCT2646ATQCTG4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for signal level translation and voltage conversion in various electronic devices.

Characteristics

• Signal Level Translation: The 74FCT2646ATQCTG4 facilitates the translation of signals between different voltage levels, ensuring compatibility between different components.
• Voltage Conversion: It enables the conversion of signals from one voltage level to another, allowing seamless communication between devices operating at different voltage levels.

Package and Quantity

The 74FCT2646ATQCTG4 is available in a small outline package (SOIC) with a total of 20 pins. It is typically sold in reels or tubes containing multiple units.

Essence

The essence of the 74FCT2646ATQCTG4 lies in its ability to bridge the gap between devices operating at different voltage levels, enabling smooth data transfer and communication.

Packaging/Quantity

The 74FCT2646ATQCTG4 is commonly packaged in reels or tubes, with each package containing multiple units of the IC.

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: GND to VCC
• Output Voltage Range: GND to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay: 10ns
• Maximum Operating Frequency: 100MHz

Pin Configuration

The 74FCT2646ATQCTG4 has a total of 20 pins, which are assigned specific functions as follows:

1. A0: Input A Bit 0
2. A1: Input A Bit 1
3. A2: Input A Bit 2
4. A3: Input A Bit 3
5. A4: Input A Bit 4
6. A5: Input A Bit 5
7. A6: Input A Bit 6
8. A7: Input A Bit 7
9. OE*: Output Enable (Active Low)
10. DIR: Direction Control
11. B0: Input B Bit 0
12. B1: Input B Bit 1
13. B2: Input B Bit 2
14. B3: Input B Bit 3
15. B4: Input B Bit 4
16. B5: Input B Bit 5
17. B6: Input B Bit 6
18. B7: Input B Bit 7
19. GND: Ground
20. VCC: Power Supply

Functional Features

• Bidirectional Voltage Translation: The 74FCT2646ATQCTG4 allows for bidirectional voltage translation between two sets of input/output pins, making it suitable for applications requiring both data transmission and reception.
• Automatic Direction Control: The DIR pin controls the direction of data flow, enabling seamless switching between input and output modes.
• High-Speed Operation: With a maximum operating frequency of 100MHz and a propagation delay of only 10ns, this IC ensures efficient signal translation without compromising speed.

Advantages and Disadvantages

Advantages

• Wide Supply Voltage Range: The 74FCT2646ATQCTG4 can operate within a wide supply voltage range, providing flexibility in various electronic systems.
• Bidirectional Capability: It supports bidirectional voltage translation, eliminating the need for separate unidirectional translators.
• Fast Propagation Delay: The low propagation delay ensures minimal signal distortion and faster data transfer.

Disadvantages

• Limited Pin Count: With only 20 pins, the IC may have limitations in applications requiring a higher number of input/output channels.
• Temperature Sensitivity: The operating temperature range of -40°C to +85°C may restrict its use in extreme temperature environments.

Working Principles

The 74FCT2646ATQCTG4 utilizes a combination of voltage level shifters and direction control circuitry to achieve bidirectional signal translation. When the DIR pin is set to a specific logic level, the IC automatically adjusts the data flow direction between the two sets of input/output pins. The voltage level shifters ensure that signals are translated accurately and efficiently, allowing seamless communication between devices operating at different voltage levels.

Application Field Plans

The 74FCT2646ATQCTG4 finds application in various electronic systems, including but not limited to: 1. Microcontrollers and microprocessors 2. Communication systems 3. Data acquisition systems 4. Industrial automation 5. Consumer electronics

Alternative Models

For those seeking alternative options, the following ICs can be considered as substitutes for the 74FCT2646ATQCTG