Encyclopedia Entry: 74FCT245CTPYG

Product Overview

Category

The 74FCT245CTPYG belongs to the category of integrated circuits (ICs) and specifically falls under the family of bus transceivers.

Use

This product is commonly used for bidirectional data transfer between two buses with different voltage levels. It acts as a buffer, allowing seamless communication between systems operating at different voltage levels.

Characteristics

• Bidirectional data transfer
• Voltage level translation
• High-speed operation
• Low power consumption
• Compact package size

Package

The 74FCT245CTPYG is available in a small outline integrated circuit (SOIC) package. This package offers ease of handling and compatibility with standard PCB manufacturing processes.

Essence

The essence of the 74FCT245CTPYG lies in its ability to facilitate efficient and reliable data transfer between buses operating at different voltage levels.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage: 2.0V - 5.5V
• Input Voltage Levels: 0V - VCC
• Output Voltage Levels: 0V - VCC
• Maximum Data Rate: 250 MHz
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 20
• Pin Pitch: 0.65mm

Detailed Pin Configuration

1. A1: Bus A Data Input/Output
2. A2: Bus A Data Input/Output
3. A3: Bus A Data Input/Output
4. A4: Bus A Data Input/Output
5. A5: Bus A Data Input/Output
6. GND: Ground
7. B1: Bus B Data Input/Output
8. B2: Bus B Data Input/Output
9. B3: Bus B Data Input/Output
10. B4: Bus B Data Input/Output
11. B5: Bus B Data Input/Output
12. OE: Output Enable
13. DIR: Direction Control
14. VCC: Supply Voltage
15. NC: No Connection
16. NC: No Connection
17. NC: No Connection
18. NC: No Connection
19. NC: No Connection
20. GND: Ground

Functional Features

• Bidirectional data transfer between two buses
• Automatic voltage level translation
• High-speed operation for efficient data transfer
• Output enable control for bus isolation
• Direction control for selecting the active bus

Advantages and Disadvantages

Advantages

• Enables seamless communication between buses with different voltage levels
• Compact package size allows for space-efficient integration into electronic systems
• High-speed operation ensures efficient data transfer
• Low power consumption for energy-efficient applications

Disadvantages

• Limited to bidirectional data transfer between two buses only
• Requires careful consideration of voltage compatibility between the two buses

Working Principles

The 74FCT245CTPYG operates by monitoring the direction control (DIR) pin to determine the active bus. When the DIR pin is set to logic high, data is transferred from Bus A to Bus B. Conversely, when the DIR pin is set to logic low, data is transferred from Bus B to Bus A. The output enable (OE) pin can be used to disable the outputs, effectively isolating the bus from the rest of the system.

Detailed Application Field Plans

The 74FCT245CTPYG finds application in various fields where bidirectional data transfer between buses with different voltage levels is required. Some common application areas include:

1. Industrial Automation: Facilitating communication between control systems operating at different voltage levels.
2. Automotive Electronics: Enabling data exchange between various vehicle subsystems with varying voltage requirements.
3. Consumer Electronics: Supporting interconnection between devices operating at different voltage levels, such as smartphones and peripherals.

Detailed and Complete Alternative Models

1. SN74LVC245APW: Similar bidirectional bus transceiver with 3-state outputs.
2. CD74HCT245E: Octal bus transceiver with non-inverting 3-state outputs.
3. MC74VHC245DT: High-speed CMOS octal bus transceiver with 3-state outputs.

These alternative models offer similar functionality to the 74FCT245CTPYG and can be considered based on specific project requirements.

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