74HCT640DB,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Bus Transceiver
• Characteristics: High-speed, CMOS technology, 3-state outputs
• Package: SSOP (Shrink Small Outline Package)
• Essence: Transfers data bidirectionally between two buses with different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +125°C
• Input Capacitance: 3.5pF
• Output Capacitance: 6pF
• Propagation Delay Time: 9ns (max)
• Output Current: ±6mA

Detailed Pin Configuration

The 74HCT640DB,118 has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) 1
2. A1 (Bus A Data Inputs/Outputs)
3. B1 (Bus B Data Inputs/Outputs)
4. GND (Ground)
5. B2 (Bus B Data Inputs/Outputs)
6. A2 (Bus A Data Inputs/Outputs)
7. OE (Output Enable) 2
8. DIR (Direction Control)
9. VCC (Supply Voltage)
10. NC (No Connection)
11. B3 (Bus B Data Inputs/Outputs)
12. A3 (Bus A Data Inputs/Outputs)
13. B4 (Bus B Data Inputs/Outputs)
14. A4 (Bus A Data Inputs/Outputs)
15. B5 (Bus B Data Inputs/Outputs)
16. A5 (Bus A Data Inputs/Outputs)
17. B6 (Bus B Data Inputs/Outputs)
18. A6 (Bus A Data Inputs/Outputs)
19. GND (Ground)
20. NC (No Connection)

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• 3-state outputs allow multiple devices to share the same bus
• High-speed operation suitable for various applications
• CMOS technology ensures low power consumption

Advantages and Disadvantages

Advantages: - Enables communication between buses operating at different voltage levels - Supports bidirectional data transfer - Allows multiple devices to be connected to the same bus - Low power consumption due to CMOS technology

Disadvantages: - Limited to a specific package type (SSOP) - Requires careful consideration of voltage compatibility between buses

Working Principles

The 74HCT640DB,118 is a bus transceiver that facilitates bidirectional data transfer between two buses with different voltage levels. It operates based on the direction control signal (DIR) provided by the user. When DIR is set to logic high, data is transferred from Bus A to Bus B, and when DIR is set to logic low, data is transferred from Bus B to Bus A. The Output Enable (OE) signals control the tri-state outputs, allowing multiple devices to share the same bus without interfering with each other.

Detailed Application Field Plans

The 74HCT640DB,118 can be used in various applications where bidirectional data transfer is required between buses operating at different voltage levels. Some potential application fields include: - Communication systems - Industrial automation - Automotive electronics - Consumer electronics - Medical equipment

Detailed and Complete Alternative Models

• SN74HCT640N: DIP (Dual In-line Package) version of the 74HCT640DB,118
• MC74HCT640N: Another DIP version of the 74HCT640DB,118
• CD74HCT640E: PDIP (Plastic Dual In-line Package) version of the 74HCT640DB,118

These alternative models offer similar functionality and can be used as substitutes for the 74HCT640DB,118 depending on the specific requirements of the application.

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