74HC646D,653
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Data Bus Transceiver
- Characteristics: High-speed, Low-power, TTL-Compatible
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: Bidirectional Octal Bus Transceiver with 3-State Outputs
- Packaging/Quantity: Tape and Reel, 2500 pieces per reel
Specifications
- Supply Voltage Range: 2V to 6V
- Input Voltage Range: 0V to VCC
- Output Voltage Range: 0V to VCC
- Operating Temperature Range: -40°C to +85°C
- Propagation Delay Time: 10ns (Max)
- Output Current: ±6mA
- Input Capacitance: 3.5pF
- Output Capacitance: 6pF
Detailed Pin Configuration
- OE (Output Enable) - Active Low Output Enable
- DIR (Direction Control) - Direction Control Input
- A0-A7 (Data Bus) - Bidirectional Data Bus
- B0-B7 (Data Bus) - Bidirectional Data Bus
- GND (Ground) - Ground Connection
- VCC (Supply Voltage) - Positive Power Supply
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- NC (No Connect) - No Connection
- VCC (Supply Voltage) - Positive Power Supply
Functional Features
- Bidirectional data transfer between two independent buses
- 3-state outputs for bus isolation
- TTL-compatible inputs and outputs
- High-speed operation with low power consumption
- Output enable control for disabling the outputs
Advantages
- Allows efficient communication between different parts of a system
- Provides bidirectional data transfer capability
- Supports bus isolation through 3-state outputs
- Compatible with TTL logic levels
- Offers high-speed operation while consuming low power
Disadvantages
- Limited to a maximum supply voltage of 6V
- Requires careful handling due to small package size
- Not suitable for applications requiring higher output current
Working Principles
The 74HC646D,653 is a bidirectional octal bus transceiver that enables data transfer between two independent buses. It features 3-state outputs, which allow the outputs to be disabled, providing bus isolation. The device operates at high speed while consuming low power and is compatible with TTL logic levels.
Detailed Application Field Plans
- Data communication systems
- Microprocessor-based systems
- Industrial automation
- Telecommunications equipment
- Automotive electronics
Detailed and Complete Alternative Models
- SN74HC646D,653
- MC74HC646D,653
- CD74HC646D,653
- 74HCT646D,653
Please note that the above list is not exhaustive and there may be other alternative models available in the market.
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 74HC646D,653 i tekniska lösningar
Sure! Here are 10 common questions and answers related to the application of 74HC646D,653 in technical solutions:
Q: What is the 74HC646D,653? A: The 74HC646D,653 is a 16-bit bus transceiver with 3-state outputs, designed for asynchronous two-way communication between data buses.
Q: What is the maximum operating voltage for the 74HC646D,653? A: The maximum operating voltage for the 74HC646D,653 is 6 volts.
Q: Can the 74HC646D,653 be used as a level shifter? A: Yes, the 74HC646D,653 can be used as a level shifter to convert signals between different voltage levels.
Q: How many data lines can the 74HC646D,653 handle? A: The 74HC646D,653 can handle up to 16 data lines.
Q: What is the output current capability of the 74HC646D,653? A: The 74HC646D,653 has a typical output current capability of 35 mA.
Q: Can the 74HC646D,653 be used in bidirectional communication? A: Yes, the 74HC646D,653 supports bidirectional communication, allowing data to be transmitted in both directions.
Q: Does the 74HC646D,653 have built-in protection against overvoltage? A: No, the 74HC646D,653 does not have built-in overvoltage protection. External measures should be taken to prevent overvoltage.
Q: What is the propagation delay of the 74HC646D,653? A: The propagation delay of the 74HC646D,653 is typically around 10 ns.
Q: Can the 74HC646D,653 be used in high-speed applications? A: Yes, the 74HC646D,653 can be used in high-speed applications as it has a maximum operating frequency of 80 MHz.
Q: Are there any specific precautions to consider when using the 74HC646D,653? A: It is important to ensure that the power supply voltage does not exceed the specified maximum voltage and to avoid static discharge during handling. Additionally, proper decoupling capacitors should be used for stable operation.
Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the datasheet and consult with an expert for accurate information.