規格
| 屬性 | 價值 |
| Package | Bulk,Tube |
| Series | 74ACT |
| ProductStatus | Active |
| LogicType | Buffer, Non-Inverting |
| NumberofElements | 2 |
| NumberofBitsperElement | 4 |
| OutputType | 3-State |
| Current-OutputHighLow | 24mA, 24mA |
| Voltage-Supply | 4.5V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 20-SOIC (0.295, 7.50mm Width) |
概述
Description
The SN74ACT244DW is an octal buffer/driver with 3-state outputs, designed to improve the performance and density of digital systems. This device is part of the 74ACT logic family, known for its advanced CMOS technology combined with TTL-compatible inputs. It features two sections, each with four non-inverting buffers. These buffers are used to improve signal integrity in digital circuits by boosting the driving capability of the signal lines, thus reducing the loading effect on the circuit.
The SN74ACT244 includes 3-state outputs, which can be configured to drive high, low, or remain in a high-impedance state, allowing for effective bus management and reduced power consumption. The device operates within a supply voltage range of 4.5V to 5.5V, making it suitable for 5V systems, and it supports a wide range of applications, including memory address driving and data bus interfacing.
The SN74ACT244DW comes in a standard SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for surface mounting, aiding in the design of space-constrained applications.
The SN74ACT244 includes 3-state outputs, which can be configured to drive high, low, or remain in a high-impedance state, allowing for effective bus management and reduced power consumption. The device operates within a supply voltage range of 4.5V to 5.5V, making it suitable for 5V systems, and it supports a wide range of applications, including memory address driving and data bus interfacing.
The SN74ACT244DW comes in a standard SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for surface mounting, aiding in the design of space-constrained applications.
Equivalent
The SN74ACT244DW is a high-speed octal buffer/line driver with 3-state outputs. Equivalent products from other manufacturers include:
1. 74ACT244 from ON Semiconductor
2. TC74ACT244 from Toshiba
3. MC74ACT244 from NXP Semiconductors
4. CD74ACT244 from Texas Instruments (a similar variant)
5. HD74ACT244 from Renesas
These chips have similar functionalities and electrical characteristics, making them suitable substitutes in most applications.
1. 74ACT244 from ON Semiconductor
2. TC74ACT244 from Toshiba
3. MC74ACT244 from NXP Semiconductors
4. CD74ACT244 from Texas Instruments (a similar variant)
5. HD74ACT244 from Renesas
These chips have similar functionalities and electrical characteristics, making them suitable substitutes in most applications.
Features
The SN74ACT244DW is an octal buffer/line driver with 3-state outputs, designed for bus interface or memory address driving. Key features include:
1. High-Speed Performance: Advanced CMOS technology ensures fast switching speeds.
2. 3-State Outputs: Allows for multiple devices to share the same data lines.
3. TTL-Compatible Inputs: Facilitates easy integration with TTL logic levels.
4. Low Power Consumption: Optimized for reduced power use while maintaining performance.
5. Wide Operating Voltage Range: Typically operates from 4.5V to 5.5V.
6. Pin Configuration: Available in a 20-pin SOIC package with symmetrical pin-out for easy layout.
7. Drive Capability: Can sink/source up to 24 mA, making it suitable for driving moderate loads.
8. High Noise Immunity: Robust against noise interference, enhancing reliability.
9. Latch-Up Performance: Meets industry standards for latch-up immunity, ensuring durability.
These features make the SN74ACT244DW ideal for applications in computing and communication where efficient signal buffering and driving are required.
1. High-Speed Performance: Advanced CMOS technology ensures fast switching speeds.
2. 3-State Outputs: Allows for multiple devices to share the same data lines.
3. TTL-Compatible Inputs: Facilitates easy integration with TTL logic levels.
4. Low Power Consumption: Optimized for reduced power use while maintaining performance.
5. Wide Operating Voltage Range: Typically operates from 4.5V to 5.5V.
6. Pin Configuration: Available in a 20-pin SOIC package with symmetrical pin-out for easy layout.
7. Drive Capability: Can sink/source up to 24 mA, making it suitable for driving moderate loads.
8. High Noise Immunity: Robust against noise interference, enhancing reliability.
9. Latch-Up Performance: Meets industry standards for latch-up immunity, ensuring durability.
These features make the SN74ACT244DW ideal for applications in computing and communication where efficient signal buffering and driving are required.
Pinout
The SN74ACT244DW is an octal buffer/driver with 3-state outputs. It is typically packaged in a 20-pin SOIC (Small Outline Integrated Circuit). The device functions as a buffer that can drive high capacitive loads, which makes it suitable for bus interface or memory address driving applications. The "octal" in its description denotes that it has 8 buffer/driver circuits.
Key features include:
- Pin Count: 20 pins
- Input/Output Configuration:
- 8 input pins (A1 to A8)
- 8 output pins (Y1 to Y8)
- 3-state Control: Two 3-state output enable pins (1OE and 2OE). These control the output state; when disabled, the outputs are in a high-impedance state, allowing for multiple devices to connect to the same bus line without interference.
- Functionality: The device can improve signal integrity and drive capability, making it useful for driving data lines with high capacitive loads in digital circuits.
This IC is suitable for systems that require buffering and driving multiple lines, such as microprocessor-based systems or memory units.
Key features include:
- Pin Count: 20 pins
- Input/Output Configuration:
- 8 input pins (A1 to A8)
- 8 output pins (Y1 to Y8)
- 3-state Control: Two 3-state output enable pins (1OE and 2OE). These control the output state; when disabled, the outputs are in a high-impedance state, allowing for multiple devices to connect to the same bus line without interference.
- Functionality: The device can improve signal integrity and drive capability, making it useful for driving data lines with high capacitive loads in digital circuits.
This IC is suitable for systems that require buffering and driving multiple lines, such as microprocessor-based systems or memory units.
Manufacturer
The SN74ACT244DW is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components. Specializing in analog and embedded processing chips, TI provides solutions for various applications, including industrial, automotive, personal electronics, and communications equipment. The company is known for its innovation in semiconductor technology and has a significant impact on numerous sectors by enabling advanced electronics in everyday devices.
Application
The SN74ACT244DW is an octal buffer/driver with 3-state outputs, commonly used in digital circuits. Its application areas include:
1. Bus Interface: Facilitates communication between different parts of a system by buffering data lines.
2. Signal Driving: Strengthens weak signals to drive loads over long distances or through multiple devices.
3. Memory Addressing: Assists in managing data flow in memory modules by buffering address lines.
4. Microcontroller/Microprocessor Systems: Provides signal buffering and level translation for microcontrollers and microprocessors.
5. Data Communication: Enhances signal integrity in data transmission applications.
Overall, it is useful for improving signal stability and managing data pathways in various electronic circuits.
1. Bus Interface: Facilitates communication between different parts of a system by buffering data lines.
2. Signal Driving: Strengthens weak signals to drive loads over long distances or through multiple devices.
3. Memory Addressing: Assists in managing data flow in memory modules by buffering address lines.
4. Microcontroller/Microprocessor Systems: Provides signal buffering and level translation for microcontrollers and microprocessors.
5. Data Communication: Enhances signal integrity in data transmission applications.
Overall, it is useful for improving signal stability and managing data pathways in various electronic circuits.
Package
The SN74ACT244DW is a high-speed octal buffer/driver IC with 3-state outputs. It is housed in a SOIC-20 (Small Outline Integrated Circuit) package, which has 20 pins and is designed for surface-mount technology (SMT).
