規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74LVC |
| ProductStatus | Active |
| LogicType | Buffer, Non-Inverting |
| NumberofElements | 2 |
| NumberofBitsperElement | 4 |
| OutputType | 3-State |
| Current-OutputHighLow | 24mA, 24mA |
| Voltage-Supply | 1.65V ~ 3.6V |
| OperatingTemperature | -40°C ~ 125°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 20-SOIC (0.295, 7.50mm Width) |
概述
Description
The SN74LVC244ADWR is a part of Texas Instruments' LVC family of logic devices. It is an octal buffer/driver with 3-state outputs, designed for a wide range of digital applications. The device operates from a 1.65 V to 3.6 V supply range, making it compatible with low-voltage systems. It features two banks of four buffers, each with independent output-enable control, allowing for versatile data management within a circuit.
Key characteristics include a high-speed CMOS technology that ensures low power consumption and short propagation delays, making it suitable for high-performance applications. The 3-state outputs allow for direct connection to bus lines, reducing the need for additional components in bus-oriented systems. The SN74LVC244ADWR's inputs can tolerate voltages up to 5.5 V, making it compatible with TTL logic levels, which enhances its versatility in mixed-voltage environments.
This device is commonly used in interfacing, data buffering, address bus driving, and other applications where controlled data flow and signal integrity are critical. The compact TSSOP package provides ease of integration into space-constrained designs.
Key characteristics include a high-speed CMOS technology that ensures low power consumption and short propagation delays, making it suitable for high-performance applications. The 3-state outputs allow for direct connection to bus lines, reducing the need for additional components in bus-oriented systems. The SN74LVC244ADWR's inputs can tolerate voltages up to 5.5 V, making it compatible with TTL logic levels, which enhances its versatility in mixed-voltage environments.
This device is commonly used in interfacing, data buffering, address bus driving, and other applications where controlled data flow and signal integrity are critical. The compact TSSOP package provides ease of integration into space-constrained designs.
Equivalent
The SN74LVC244ADWR is an octal buffer/line driver with 3-state outputs. Equivalent products include:
1. 74LVC244A from Nexperia
2. 74LCX244 from ON Semiconductor
3. MC74LCX244 from ON Semiconductor
4. 74VHC244 from Toshiba
5. SN74HC244 from Texas Instruments
These equivalents offer similar functionality and pin configuration but may vary in electrical characteristics and performance specifics. Always check datasheets to ensure compatibility with your application.
1. 74LVC244A from Nexperia
2. 74LCX244 from ON Semiconductor
3. MC74LCX244 from ON Semiconductor
4. 74VHC244 from Toshiba
5. SN74HC244 from Texas Instruments
These equivalents offer similar functionality and pin configuration but may vary in electrical characteristics and performance specifics. Always check datasheets to ensure compatibility with your application.
Features
The SN74LVC244ADWR is an octal buffer/driver with 3-state outputs designed for a wide range of digital applications. Key features include:
1. Operating Voltage: It supports a wide supply voltage range from 1.65 V to 3.6 V, making it versatile for various applications.
2. High-Speed Operation: Designed for high-speed data transmission, it ensures fast signal processing.
3. Low Power Consumption: The device features low static power consumption, suitable for battery-powered applications.
4. 3-State Outputs: It includes 3-state outputs that allow multiple outputs to connect directly to a common bus line without interference.
5. Drive Capability: The device can drive up to 24 mA at 3.3 V, providing robust performance for driving loads.
6. Inputs: It has TTL-compatible inputs, allowing for easy integration with other TTL devices.
7. Noise Immunity: The device offers excellent noise immunity, ensuring reliable operation in noisy environments.
8. Compact Package: Available in various compact package options, suitable for space-constrained applications.
These features make the SN74LVC244ADWR a reliable choice for buffering and driving applications in digital circuits.
1. Operating Voltage: It supports a wide supply voltage range from 1.65 V to 3.6 V, making it versatile for various applications.
2. High-Speed Operation: Designed for high-speed data transmission, it ensures fast signal processing.
3. Low Power Consumption: The device features low static power consumption, suitable for battery-powered applications.
4. 3-State Outputs: It includes 3-state outputs that allow multiple outputs to connect directly to a common bus line without interference.
5. Drive Capability: The device can drive up to 24 mA at 3.3 V, providing robust performance for driving loads.
6. Inputs: It has TTL-compatible inputs, allowing for easy integration with other TTL devices.
7. Noise Immunity: The device offers excellent noise immunity, ensuring reliable operation in noisy environments.
8. Compact Package: Available in various compact package options, suitable for space-constrained applications.
These features make the SN74LVC244ADWR a reliable choice for buffering and driving applications in digital circuits.
Pinout
The SN74LVC244ADWR is a 20-pin integrated circuit that functions as an octal buffer/driver with 3-state outputs. It is part of the SN74LVC244A series, which is designed for 3.3-V VCC operation and is also suitable for 5-V input compatibility. The device is used to buffer and drive data with high-speed performance and low power consumption.
The pin configuration typically includes:
- 8 data input pins (A1 to A8)
- 8 data output pins (Y1 to Y8)
- 2 output enable pins (OE1 and OE2)
- Power supply pins: VCC and GND
The output enable pins control the state of the outputs. When OE is low, the corresponding outputs are enabled, and the device transmits data from inputs to outputs. When OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the circuit. This makes the SN74LVC244ADWR suitable for bus-oriented applications where multiple devices can drive the bus lines.
The pin configuration typically includes:
- 8 data input pins (A1 to A8)
- 8 data output pins (Y1 to Y8)
- 2 output enable pins (OE1 and OE2)
- Power supply pins: VCC and GND
The output enable pins control the state of the outputs. When OE is low, the corresponding outputs are enabled, and the device transmits data from inputs to outputs. When OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the circuit. This makes the SN74LVC244ADWR suitable for bus-oriented applications where multiple devices can drive the bus lines.
Manufacturer
The SN74LVC244ADWR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a broad range of analog and embedded processing chips. These products are essential components in various electronic devices and systems, providing critical functions such as signal processing, power management, and connectivity. TI is well-known for its innovation in the electronics sector and has a substantial impact across industries such as automotive, consumer electronics, industrial equipment, and communications infrastructure. Founded in 1930 and headquartered in Dallas, Texas, the company has a long history of technological advancements and is considered one of the leading players in the semiconductor industry.
Application
The SN74LVC244ADWR is an octal buffer/driver with 3-state outputs, commonly used in digital circuits. Its application areas include signal buffering and driving, where it helps in reducing loading on microcontrollers or other digital ICs. It is often used in memory address driving and data bus interfacing, providing efficient signal transmission between sequential and combinational logic circuits. Additionally, the device is suitable for use in level translation between different voltage domains, control of data flow in multiplexed systems, and in systems requiring temporary signal isolation, such as during power-up sequences. Its robust design also makes it ideal for portable and battery-powered applications.
Package
The SN74LVC244ADWR is a non-inverting octal buffer/driver from Texas Instruments, housed in a 20-pin SOIC (Small Outline Integrated Circuit) package. The "DW" in the part number indicates the SOIC package type, which is designed for surface mount technology.