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74LVC244AD,118
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Buffer/Line Driver
- Characteristics: Low Voltage CMOS Octal Buffer/Line Driver with 3-State Outputs
- Package: SOIC (Small Outline Integrated Circuit)
- Essence: High-speed, low-power buffer/driver for various digital applications
- Packaging/Quantity: Tape and Reel, 2500 pieces per reel
Specifications
- Supply Voltage Range: 1.65V to 5.5V
- High-Level Input Voltage: 2V to VCC + 0.5V
- Low-Level Input Voltage: -0.5V to 0.8V
- High-Level Output Voltage: VCC - 0.5V
- Low-Level Output Voltage: 0.5V
- Maximum Operating Frequency: 200MHz
- Propagation Delay: 4.3ns (typical)
- Output Drive Capability: ±24mA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The 74LVC244AD,118 IC has a total of 20 pins arranged in a dual in-line package (DIP). The pin configuration is as follows:
__ __
A1 | 1 20 | VCC
A2 | 2 19 | OE#
B1 | 3 18 | I/O1
B2 | 4 17 | I/O2
C1 | 5 16 | I/O3
C2 | 6 15 | I/O4
D1 | 7 14 | GND
D2 | 8 13 | I/O5
GND | 9 12 | I/O6
Y1 | 10 11 | I/O7
‾‾ ‾‾
Functional Features
- Octal buffer/line driver with 3-state outputs
- Provides non-inverting buffers for bus-oriented applications
- Supports bidirectional communication
- Allows multiple devices to be connected to a common bus without contention
- Enables high-speed data transfer between different logic levels
Advantages and Disadvantages
Advantages: - Low voltage operation makes it suitable for battery-powered devices - High-speed performance allows for efficient data transfer - 3-state outputs enable bus sharing and reduce power consumption - Wide operating temperature range ensures reliability in various environments
Disadvantages: - Limited output drive capability compared to some other ICs - Not suitable for high-power applications - May require additional components for certain circuit configurations
Working Principles
The 74LVC244AD,118 is based on CMOS (Complementary Metal-Oxide-Semiconductor) technology. It consists of eight buffer/driver circuits that can be independently controlled using the Output Enable (OE#) pin. When OE# is low, the outputs are active and reflect the input signals. When OE# is high, the outputs are in a high-impedance state, allowing other devices to drive the bus.
The IC operates at low voltages, making it compatible with a wide range of digital systems. It provides buffering and line driving capabilities, ensuring signal integrity and minimizing noise interference.
Detailed Application Field Plans
The 74LVC244AD,118 is commonly used in various digital applications, including: - Microprocessor and microcontroller interfacing - Data communication systems - Memory address decoding - Bus drivers for computer peripherals - Level shifting between different logic families
Its ability to provide bidirectional communication and support multiple devices on a bus makes it suitable for complex systems where efficient data transfer is required.
Detailed and Complete Alternative Models
- SN74LVC244A: Similar octal buffer/line driver IC from Texas Instruments
- MC74VHC244: Octal non-inverting buffer/driver IC from ON Semiconductor
- CD74HCT244: Octal buffer/line driver IC with 3-state outputs from Texas Instruments
These alternative models offer similar functionality and can be used as replacements for the 74LVC244AD,118 in various applications.
Word count: 431 words
Liste 10 perguntas e respostas comuns relacionadas à aplicação de 74LVC244AD,118 em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of 74LVC244AD,118 in technical solutions:
Q: What is the function of the 74LVC244AD,118? A: The 74LVC244AD,118 is an octal buffer/line driver with 3-state outputs. It can be used to amplify and buffer digital signals.
Q: What is the maximum operating voltage for the 74LVC244AD,118? A: The maximum operating voltage for the 74LVC244AD,118 is 3.6V.
Q: Can the 74LVC244AD,118 be used with both CMOS and TTL logic levels? A: Yes, the 74LVC244AD,118 is compatible with both CMOS and TTL logic levels.
Q: How many input/output pins does the 74LVC244AD,118 have? A: The 74LVC244AD,118 has 8 input pins and 8 output pins.
Q: What is the maximum output current that the 74LVC244AD,118 can drive? A: The 74LVC244AD,118 can drive up to 24mA of output current.
Q: Can the 74LVC244AD,118 be used in bidirectional communication? A: No, the 74LVC244AD,118 is a unidirectional buffer and cannot be used for bidirectional communication.
Q: Is the 74LVC244AD,118 suitable for level shifting applications? A: Yes, the 74LVC244AD,118 can be used for level shifting between different voltage domains.
Q: What is the propagation delay of the 74LVC244AD,118? A: The typical propagation delay of the 74LVC244AD,118 is around 4.3ns.
Q: Can the 74LVC244AD,118 be used in high-speed applications? A: Yes, the 74LVC244AD,118 is designed for high-speed operation and can be used in such applications.
Q: Does the 74LVC244AD,118 have built-in ESD protection? A: Yes, the 74LVC244AD,118 has built-in ESD protection to safeguard against electrostatic discharge.
Please note that these answers are general and may vary depending on the specific application and requirements.