Encyclopedia Entry: 74VCX2245WMX

Product Overview

Category

The 74VCX2245WMX belongs to the category of integrated circuits (ICs) and specifically falls under the family of voltage translating and level shifting ICs.

Use

This product is primarily used for voltage translation and level shifting applications in electronic circuits. It enables seamless communication between devices operating at different voltage levels, ensuring compatibility and reliable data transfer.

Characteristics

• Voltage Translation: The 74VCX2245WMX facilitates bidirectional voltage translation between two independent voltage domains.
• Level Shifting: It allows for the conversion of logic levels between different voltage standards.
• High-Speed Operation: This IC operates at high speeds, making it suitable for applications requiring fast data transfer.
• Low Power Consumption: The 74VCX2245WMX is designed to consume minimal power, enhancing energy efficiency in electronic systems.
• Compact Package: It comes in a small form factor package, enabling space-saving integration into various circuit designs.
• RoHS Compliant: The product adheres to the Restriction of Hazardous Substances directive, ensuring environmental safety.

Package and Quantity

The 74VCX2245WMX is available in a surface mount package, specifically the 24-pin TSSOP (Thin Shrink Small Outline Package). It is typically sold in reels or tubes containing multiple units, with quantities varying based on supplier and customer requirements.

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Logic Voltage Levels: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V
• Input/Output Compatibility: TTL, CMOS
• Maximum Data Rate: 400 Mbps
• Operating Temperature Range: -40°C to +85°C
• Input/Output Capacitance: 4pF (typical)
• Propagation Delay: 2.5ns (max)

Detailed Pin Configuration

The 74VCX2245WMX features a total of 24 pins, each serving a specific function. The pin configuration is as follows:

1. OE (Output Enable) A
2. I/O A0
3. I/O A1
4. GND (Ground)
5. I/O A2
6. VCC (Power Supply)
7. I/O A3
8. I/O A4
9. I/O A5
10. I/O A6
11. I/O A7
12. I/O A8
13. I/O A9
14. I/O A10
15. I/O A11
16. OE (Output Enable) B
17. I/O B0
18. I/O B1
19. GND (Ground)
20. I/O B2
21. VCC (Power Supply)
22. I/O B3
23. I/O B4
24. I/O B5

Functional Features

• Bidirectional Voltage Translation: The 74VCX2245WMX allows for the translation of signals between two voltage domains, ensuring seamless communication.
• Automatic Direction Control: The direction of data flow is automatically determined based on the logic levels of the input signals.
• High-Speed Data Transfer: With a maximum data rate of 400 Mbps, this IC enables fast and efficient data transmission.
• Low Power Consumption: The product is designed to minimize power consumption, making it suitable for battery-powered devices.
• ESD Protection: The 74VCX2245WMX incorporates built-in electrostatic discharge (ESD) protection, safeguarding against potential damage.

Advantages and Disadvantages

Advantages

• Enables voltage translation between different voltage domains.
• Supports bidirectional data transfer.
• High-speed operation for fast data transmission.
• Low power consumption, enhancing energy efficiency.
• Compact package for space-saving integration.
• RoHS compliant, ensuring environmental safety.

Disadvantages

• Limited to specific voltage ranges (1.2V to 3.6V).
• Requires careful consideration of input/output compatibility.

Working Principles

The 74VCX2245WMX utilizes a combination of CMOS and TTL logic to achieve voltage translation and level shifting. It employs a bidirectional buffer circuitry that automatically detects the logic levels of the input signals and translates them accordingly. The direction of data flow is controlled by the output enable (OE) pins. When OE is high, the IC is in an output mode, allowing data to be transmitted bidirectionally. Conversely, when OE is low, the IC is in a high-impedance state, isolating the input and output sides.

Detailed Application Field Plans

The 74VCX2245WMX finds applications in various electronic systems where voltage translation and level shifting are required.